I270A

INA270_07 BURR-BROWN | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 17

Technical content

/C0066/C0117/C0114/C0114/C0262/C0066/C0114/C0111/C0119/C0110 /C0080/C0114/C0111/C0100/C0117/C0099/C0116/C0115 /C0102/C0114/C0111/C0109 /C0084/C0101/C0120/C0097/C0115 /C0073/C0110/C0115/C0116/C0114/C0117/C0109/C0101/C0110/C0116/C0115 INA270 INA271

FEATURES

DESCRIPTION

APPLICATIONS

Single-Pole□Filter Capacitor +2.7V□to□+18V 5k/c875k/c87 96k/c87 RL PRE□OUT BUF□IN GND OUT IN/c45IN+ V+ Load/c45 16V□to□+80V Supply RS INA270 INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 Voltage Output, Unidirectional Measurement Current-Shunt Monitor WIDE COMMON-MODE RANGE: 16V to +80V The INA270 and INA271 family of current-shunt monitors with voltage output can sense drops across CMRR: 120dB current shunts at common-mode voltages from 16V ACCURACY: to +80V, independent of the supply voltage. The 2.5mV offset (max) INA270 and INA271 pinouts readily enable filtering. gain error (max) The INA270 and INA271 are available with two µ C offset drift (max) output voltage scales: 14V/V and 20V/V. The 130kHz 55ppm/ C gain drift (max) bandwidth simplifies use in current-control loops. BANDWIDTH: Up to 130kHz The INA270 and INA271 operate from a single +2.7V TWO TRANSFER FUNCTIONS AVAILABLE: to +18V supply, drawing a maximum of 900 µ A of 14V/V (INA270) supply current. They are specified over the extended 20V/V (INA271) operating temperature range of C to +125 C and QUIESCENT CURRENT: 900 µ A (max) are offered in an SO-8 package. POWER SUPPLY: +2.7V to +18V PROVISION FOR FILTERING POWER MANAGEMENT AUTOMOTIVE TELECOM EQUIPMENT NOTEBOOK COMPUTERS BATTERY CHARGERS CELL PHONES WELDING EQUIPMENT DEVICE COMPARISON DEVICE GAIN INA270 14V/V INA271 20V/V Please be aware that an important notice concerning availability, standard warranty, and use in critical sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright 2007, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

www.ti.com ABSOLUTE MAXIMUM RATINGS (1) PIN CONFIGURATION IN+ NC (1) OUT IN/c45 GND PRE□OUT BUF□IN INA27x INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION (1) PACKAGE PACKAGE PRODUCT PACKAGE-LEAD DESIGNATOR GAIN MARKING INA270 SO-8 D I270A INA271 SO-8 D I271A (1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com INA270, INA271 UNIT Supply Voltage S +18 V Analog Inputs, V IN+ V IN Differential, IN+ IN to +18 V Common-Mode to +80 V Analog Output: OUT and PRE OUT Pins GND 0.3 to (V+) 0.3 V Input Current Into Any Pin mA Operating Temperature to +150 C Storage Temperature to +150 C Junction Temperature +150 C ESD Ratings: Human Body Model 3000 V Charged-Device Model 750 V (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. SO-8 Top View NOTE (1): NC denotes no internal connection. Submit Documentation Feedback

www.ti.com ELECTRICAL CHARACTERISTICS INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 Boldface limits apply over the specified temperature range: T A C to +125 At T A +25 V S +5V, V CM +12V, V SENSE 100mV, and PRE OUT connected to BUF IN, unless otherwise noted. INA270, INA271 PARAMETER CONDITIONS MIN TYP MAX UNIT INPUT Full-Scale Input Voltage V SENSE V SENSE IN+ IN 0.15 S 0.2)/Gain V Common-Mode Input Range V CM +80 V Common-Mode Rejection Ratio CMRR V IN+ 16V to +80V 120 dB Over Temperature V IN+ +12V to +80V 100 120 dB Offset Voltage, RTI (1) V OS 0.5 2.5 mV Over Temperature mV vs Temperature dV OS /dT 2.5 µ C vs Power-Supply PSR V S +2.7V to +18V, V CM +18V 100 µ V/V Input Bias Current, V IN Pin I B µ A PRE OUT Output Impedance (2) k Ω Buffer Input Bias Current nA Buffer Input Bias Current Temperature 0.03 nA/ C Coefficient OUTPUT SENSE 20mV) (3) Gain: INA270 Total Gain G V/V Gain: INA271 Total Gain G V/V Output Buffer Gain G BUF V/V Total Gain Error V SENSE 20mV to 100mV 0.2 Over Temperature vs Temperature ppm/ C Total Output Error (4) V SENSE 20mV to 100mV 0.75 2.2 Total Output Error 1.0 3.0 Nonlinearity Error V SENSE 20mV to 100mV 0.002 Output Impedance, Pin R O 1.5 Ω Maximum Capacitive Load No Sustained Oscillation nF VOLTAGE OUTPUT (5) R L 10k Ω to GND Swing to Power-Supply Rail (V+) 0.05 (V+) 0.2 V Swing to GND (6) V GND 0.003 V GND 0.05 V FREQUENCY RESPONSE Bandwidth BW C LOAD 5pF 130 kHz Phase Margin C LOAD 10nF degrees Slew Rate SR µ s Settling Time (1%) t S V SENSE 10mV to 100mV PP µ s C LOAD 5pF (1) RTI means Referred-to-Input (2) Initial resistor variation is 30% with an additional 2200ppm/ C temperature coefficient. (3) For output behavior when V SENSE 20mV, see the Application Information section Accuracy Variations as A Result of V SENSE and Common-Mode Voltage (4) Total output error includes effects of gain error and V OS (5) See typical characteristic curve Output Swing vs Output Current and Application Information section Accuracy Variations as A Result of V SENSE and Common-Mode Voltage (6) Ensured by design; not production tested. Submit Documentation Feedback

www.ti.com INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 ELECTRICAL CHARACTERISTICS (continued) Boldface limits apply over the specified temperature range: T A C to +125 At T A +25 V S +5V, V CM +12V, V SENSE 100mV, and PRE OUT connected to BUF IN, unless otherwise noted. INA270, INA271 PARAMETER CONDITIONS MIN TYP MAX UNIT NOISE, RTI (7) Voltage Noise Density e n nV/ Hz POWER SUPPLY Operating Range V S +2.7 +18 V Quiescent Current I Q V OUT 700 900 µ A Over Temperature V SENSE 0mV 350 950 µ A TEMPERATURE RANGE Specified Temperature Range +125 C Operating Temperature Range +150 C Thermal Resistance θ JA SO-8 +150 C/W (7) RTI means Referred-to-Input Submit Documentation Feedback

www.ti.com TYPICAL CHARACTERISTICS 10k 100k Gain□(dB) Frequency□(Hz) C =□1000pFLOAD G□=□14 G□=□20 10k 100k Gain□(dB) Frequency□(Hz) G□=□20 G□=□14 C =□0pFLOAD 140 130 120 110 100 10 100 1k 10k Common-Mode□and Power -Supply□Rejection□(dB) Frequency□(Hz) 100k CMRR PSR 100 200 300 400 500 600 700 V (V) OUT V (mV)SENSE 800 900 10001100 12001300 20V/V 14V/V V =□18VS 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 50 100 150 200 250 300 350 T otal□Output□Error (%□error□of□the□ideal□output□value) V (mV)SENSE 400 450 500 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 /c4516 /c4512 /c458 /c454 0 4 128 2016 Output□Error□(%) Common-Mode□Voltage□(V) ... 76 80 INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 At T A +25 V S +12V, V CM 12V, and V SENSE 100mV, unless otherwise noted. GAIN vs FREQUENCY GAIN vs FREQUENCY Figure Figure COMMON-MODE AND POWER-SUPPLY REJECTION GAIN PLOT vs FREQUENCY Figure Figure TOTAL OUTPUT ERROR vs V SENSE OUTPUT ERROR vs COMMON-MODE VOLTAGE Figure Figure Submit Documentation Feedback

www.ti.com 0 5 10 15 20 Output□Voltage□(V) Output□Current□(mA) 25 30 V =□12VS +25 C/c176 +25 C/c176 /c45 /c176 40 C /c45 /c176 40 C +125 C/c176 +125 C/c176 Sourcing□Current V =□3VS Sourcing□Current Output□stage□is□designed to□source□current.□Current sinking□capability□is approximately□400 A./c109 1000 900 800 700 600 500 400 300 200 100 0 1 2 3 4 5 6 7 I ( A) /c109 Q Output□Voltage□(V) 8 9 10 Output□Short-Circuit□Current□(mA) Supply□Voltage (V) 11.5 17 18 /c45 40 C/c176 /c43 25 C/c176 +125 C/c176 875 775 675 575 475 375 275 175 /c45 16 /c45 12 /c45 8 /c45 4 0 4 8 12 16 20 I ( A)/c109 Q V (V)CM 76 80 V =□0mV:SENSE V =□12VS V =□2.7VS V =□100mV:SENSE V =□12VS V =□2.7VS ... Frequency□(Hz) Gain□(dB) 200 150 100 /c4550 10 100 1k 10k 100k 1M 10M Phase Gain Population R (k ) /c87PREOUT 80 82 84 86 88 90 92 94 96 98 100102104106108110112114116118120 INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 TYPICAL CHARACTERISTICS (continued) At T A +25 V S +12V, V CM 12V, and V SENSE 100mV, unless otherwise noted. POSITIVE OUTPUT VOLTAGE SWING QUIESCENT CURRENT vs OUTPUT CURRENT vs OUTPUT VOLTAGE Figure Figure QUIESCENT CURRENT OUTPUT SHORT-CIRCUIT CURRENT vs COMMON-MODE VOLTAGE vs SUPPLY VOLTAGE Figure Figure 10. PREOUT OUTPUT RESISTANCE PRODUCTION DISTRIBUTION BUFFER GAIN vs FREQUENCY Figure 11. Figure 12. Submit Documentation Feedback

www.ti.com 50mV/div 10 s/div/c109 500mV/div 10 s/div/c109 INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 TYPICAL CHARACTERISTICS (continued) At T A +25 V S +12V, V CM 12V, and V SENSE 100mV, unless otherwise noted. SMALL-SIGNAL STEP RESPONSE LARGE-SIGNAL STEP RESPONSE 10mV TO 20mV INPUT 10mV TO 100mV INPUT Figure 13. Figure 14. Submit Documentation Feedback

www.ti.com R S Single-Pole□Filter Capacitor +2.7V□to□+18V 5k/c875k/c87 96k/c87 RL PRE□OUT BUF□IN GND OUT IN/c45IN+ V+ Load/c45 16V□to□+80V Supply RS INA270 0.01 F/c109 0.1 F/c109 INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 Figure shows the basic connection of the INA270 The input circuitry of the INA270 and INA271 can and INA271. The input pins, IN+ and IN should be accurately measure beyond its power-supply voltage, connected as closely as possible to the shunt V+. For example, the power supply can be 5V, resistor to minimize any resistance in series with the whereas the load power-supply voltage is up to shunt resistance. +80V. The output voltage range of the OUT terminal, however, is limited by the voltages on the Power-supply bypass capacitors are required for power-supply pin. stability. noise. Minimum bypass capacitors of 0.01 µ F and 0.1 µ F in value The value chosen for the shunt resistor, R S depends should be placed close to the supply pins. Although on the application and is a compromise between not mandatory, an additional 10mF electrolytic small-signal accuracy and maximum permissible capacitor placed in parallel with the other bypass voltage loss in the measurement line. High values of capacitors may be useful in R S provide better accuracy at lower currents by particularly noisy supplies. minimizing the effects of offset, while low values of R S minimize voltage loss in the supply line. For most applications, best performance is attained with an R S value that provides a full-scale shunt voltage range of 50mV to 100mV. Maximum input voltage for accurate measurements is S 0.2)/Gain. Figure 15. INA270 Basic Connections Submit Documentation Feedback

www.ti.com TRANSIENT PROTECTION OUTPUT VOLTAGE RANGE a)□Single-Pole□Filter b)□Second-Order,□Sallen-Key□Filter Single-Pole□Filter Capacitor +2.7V□to□+18V 5k/c875k/c87 96k/c87 RL PRE□OUT BUF□IN GND Output IN/c45IN+ V+ LoadSupply RS INA270 Second-Order,□Sallen-Key□Filter□Connection +2.7V□to□+18V CFILT CFILT 5k/c875k/c87 96k/c87 RL PRE□OUT BUF□IN GND Output IN/c45IN+ V+ LoadSupply RS RS INA270 INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 Despite the use of internal zener-type ESD protection, the INA270 and INA271 are not suited to The 16V to +80V common-mode range of the using external resistors in series with the inputs since INA270 and INA271 is ideal for withstanding the internal gain resistors can vary up to 30%, but automotive fault conditions ranging from 12V battery are tightly matched (if gain accuracy is not important, reversal up to +80V transients, since no additional then resistors can be added in series with the protective components are needed up to those INA270 and INA271 inputs with two equal resistors levels. In the event that the INA270 and INA271 are on each input). exposed to transients on the inputs in excess of their ratings, external transient absorption with semiconductor transient absorbers (zeners or Transzorbs) will be necessary. The output of the INA270 and INA271 is accurate within the output voltage swing range set by the Use of MOVs or VDRs is not recommended except power-supply pin, V+. when they are used in addition to a semiconductor transient absorber. Select the transient absorber The INA270 and INA271 readily enable the inclusion such that it will never allow the INA270 and INA271 of filtering between the preamp output and buffer to be exposed to transients greater than 80V (that is, input. Single-pole filtering can be accomplished with allow for transient absorber tolerance, as well as a single capacitor because of the 96k Ω output additional voltage because of transient absorber impedance at PRE OUT on pin as shown in dynamic impedance). Figure The INA270 and INA271 readily lend themselves to second-order Sallen-Key configurations, as shown in Figure When designing these configurations consider that the PRE OUT 96k Ω output impedance exhibits an initial variation of 30% with the addition of a 2200ppm/ C temperature coefficient. Figure 16. The INA270 INA271 can be easily connected for first- or second-order filtering. Remember to use the appropriate buffer gain (INA270 1.4, INA271 when designing Sallen-Key configurations. Submit Documentation Feedback

www.ti.com Normal Case V SENSE 20mV, V CM V S ACCURACY VARIATIONS AS A RESULT OF Low V SENSE Case Normal Case V SENSE 20mV, V CM V S G□= V V /c45OUT1 OUT2 100mV 20mV/c45 (1) V RTI□(Referred-T o-Input)□=OS VOUT1 G /c45100mV (2) 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 2 4 6 8 10 12 14 16 18 V (V) OUT V (mV)SENSE Actual Ideal INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 V SENSE AND COMMON-MODE VOLTAGE This region of operation has slightly less accuracy than Normal Case as a result of the common-mode The accuracy of the INA270 and INA271 current operating area in which the part functions, as seen in shunt monitors is a function of two main variables: the Output Error vs Common-Mode Voltage curve V SENSE IN+ V IN and common-mode voltage, Figure As noted, for this graph V S 12V; for V CM V CM relative to the supply voltage, V S V CM is 12V, the Output Error increases as V CM becomes expressed as IN+ V IN )/2; however, in practice, less than 12V, with a typical maximum error of V CM is seen as the voltage at V IN+ because the 0.005% at the most negative V CM 16V. voltage drop across V SENSE is usually small. This section addresses the accuracy of these specific operating regions: V SENSE 20mV, 16V V CM and Low V SENSE Case Normal Case V SENSE 20mV, V CM V S V SENSE 20mV, V S V CM 80V Normal Case V SENSE 20mV, V CM V S Although the INA270 family of devices are not Low V SENSE Case designed for accurate operation in either of these V SENSE 20mV, 16V V CM regions, some V SENSE Case conditions. For example, when monitoring power V SENSE 20mV, V CM V S supplies that are switched on and off while V S is still applied to the INA270 or INA271, it is important to Low V SENSE Case know what the behavior of the devices will be in V SENSE 20mV, V S V CM 80V these regions. As V SENSE approaches 0mV, in these V CM regions, the device output accuracy degrades. A This region of operation provides the highest larger-than-normal offset can appear at the current accuracy. Here, the input offset voltage is shunt monitor output with a typical maximum value of characterized and measured using a two-step V OUT 60mV for V SENSE 0mV. As V SENSE method. First, the gain is determined by Equation approaches 20mV, V OUT returns to the expected output value with accuracy as specified in the Electrical Characteristics Figure shows this effect using the INA271 (Gain 20). where: V OUT1 Output Voltage with V SENSE 100mV V OUT2 Output Voltage with V SENSE 20mV Then the offset voltage is measured at V SENSE 100mV and referred to the input (RTI) of the current shunt monitor, as shown in Equation In the Typical Characteristics the Output Error vs Common-Mode Voltage curve Figure shows the highest accuracy for the this region of operation. In this plot, V S 12V; for V CM 12V, the output error is at its minimum. This case is also used to create the V SENSE 20mV output specifications in the Electrical Characteristics table. Figure 17. Example for Low V SENSE Cases and (INA271, Gain 20) Submit Documentation Feedback

www.ti.com Low V SENSE Case V SENSE 20mV, V CM V S SHUTDOWN RFI/EMI 0.48 0.48 0.40 0.36 0.32 0.28 0.24 0.20 0.16 0.12 0.08 0.04 0 2 4 6 8 10 12 14 16 18 20 22 V (V) OUT V (mV)SENSE INA271□VOUT Limit(1) VCM2 VCM1 VCM3 VCM4 V ,□VCM2 CM3 CM4,□and□V illustrate□the□variance from□part□to□part□of□the□V that□can□causeCM maximum□V with□V <□20mV.OUT SENSE V limit□at□V =□0mV,OUT SENSE

0 V/c163 CM1 S/c163V

NOTE:□(1)□INA271□V Limit□=□0.4V.□INA270□V Limit□=□0.28V.OUT OUT Ideal INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 This region of operation is the least accurate for the The INA270 and INA271 do not provide a shutdown INA270 family. To achieve the wide input pin; however, because they consume a quiescent common-mode voltage range, these devices use two current less than 1mA, they can be powered by op amp front ends in parallel. One op amp front end either the output of logic gates or by transistor operates in the positive input common-mode voltage switches to supply power. Driving the gate low shuts range, and the other in the negative input region. For down the INA270 INA271. Use a totem-pole output this case, neither of these two internal amplifiers buffer or gate that can provide sufficient drive along dominates and overall loop gain is very low. Within with 0.1 µ F bypass capacitor, preferably ceramic with this region, V OUT approaches voltages close to linear good high-frequency characteristics. This gate operation levels for Normal Case should have a supply voltage of or greater because the INA270 and INA271 require a minimum This deviation from linear operation becomes supply greater than 2.7V. In addition to eliminating greatest the closer V SENSE approaches 0V. Within quiescent current, this gate also turns off the µ A this region, as V SENSE approaches 20mV, device bias current present at each of the inputs. Note that operation is closer to that described by Normal Case the IN+ and IN inputs are able to withstand full Figure illustrates this behavior for the INA271. common-mode voltage under all powered and The V OUT maximum peak for this case is determined under-powered conditions. An example shutdown by maintaining a constant V S setting V SENSE 0mV, circuit is illustrated in Figure and sweeping V CM from to V S The exact V CM at which V OUT peaks during this case varies from part to part. The maximum peak voltage for the INA270 is 0.28V; for the INA271, the maximum peak voltage is Attention to good layout practices is always 0.4V. recommended. Keep traces short and, when possible, use a printed circuit board (PCB) ground plane with surface-mount components placed as close to the device pins as possible. Small ceramic capacitors placed directly across amplifier inputs can reduce RFI/EMI sensitivity. PCB layout should locate the amplifier as far away as possible from RFI sources. Sources can include other components in the same system as the amplifier itself, such as inductors (particularly switched inductors handling a lot of current and at high frequencies). RFI can generally be identified as a variation in offset voltage or dc signal levels with changes in the interfering RF signal. If the amplifier cannot be located away from sources of radiation, shielding may be needed. Twisting wire input leads makes them more resistant to RF fields. The difference in input pin location of the INA270 and INA271 versus the INA193 INA198 may provide different EMI performance. Figure 18. Example for Low V SENSE Case (INA271, Gain 20) Submit Documentation Feedback

www.ti.com RS

0.1 F/c109

V+□>□3V Load /c45 16V□to□+80V Supply Negative and Positive Common-Mode Voltage IL Single-Pole□Filter Capacitor 5k/c875k/c87 96k/c87 RL PRE□OUT BUF□IN GND OUT IN/c45IN+ V+ INA270,□INA271 74HC04 INA270 INA271 SBOS381A FEBRUARY 2007 REVISED APRIL 2007 Figure 19. INA270 INA271 Example Shutdown Circuit Submit Documentation Feedback

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) INA270AID ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM INA270AIDG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM INA270AIDR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM INA270AIDRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM INA271AID ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM INA271AIDG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM INA271AIDR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM INA271AIDRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM (1)The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2)Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontentfor the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS):TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt):This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br):TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. PACKAGE OPTION ADDENDUM www.ti.com 7-May-2007 Addendum-Page 1

PACKAGE MATERIALS INFORMATION www.ti.com 7-May-2007 Pack Materials-Page 1

Device Package Pins Site Reel Diameter (mm) Reel Width (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W (mm) Pin1 Quadrant INA270AIDR D 8 TAI 330 12 6.4 5.2 2.1 8 12 NONE INA271AIDR D 8 TAI 330 12 6.4 5.2 2.1 8 12 NONE TAPE AND REEL BOX INFORMATION Device Package Pins Site Length (mm) Width (mm) Height (mm) INA270AIDR D 8 TAI 346.0 346.0 29.0 INA271AIDR D 8 TAI 346.0 346.0 29.0 PACKAGE MATERIALS INFORMATION www.ti.com 7-May-2007 Pack Materials-Page 2

(TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for design. Customers are responsible for their products and components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products amplifier.ti.com Audio www.ti.com/audio Data Converters dataconverter.ti.com Automotive www.ti.com/automotive DSP dsp.ti.com Broadband www.ti.com/broadband Interface interface.ti.com Digital Control www.ti.com/digitalcontrol Logic logic.ti.com Military www.ti.com/military Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork Microcontrollers microcontroller.ti.com Security www.ti.com/security Low Power www.ti.com/lpw Telephony www.ti.com/telephony Wireless Video Imaging www.ti.com/video Wireless www.ti.com/wireless Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright 2007, Texas Instruments Incorporated