LM6132

LM6132 NSC | Alldatasheet

Document overview

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Technical content

Features

(For 5V Supply, Typ Unless Noted) n Rail-to-Rail input CMVR −0.25V to 5.25V n Rail-to-Rail output swing 0.01V to 4.99V n High gain-bandwidth, 10 MHz at 20 kHz n Slew rate 12 V/µs n Low supply current 360 µA/Amp n Wide supply range 2.7V to over 24V n CMRR 100 dB n Gain 100 dB with RL = 10k n PSRR 82 dB

Applications

n Battery operated instrumentation n Instrumentation Amplifiers n Portable scanners n Wireless communications n Flat panel display driver Connection Diagrams

Ordering Information

Package Temperature Range NSC Transport Industrial, −40˚C to +85˚C Drawing Media 8-Pin Molded DIP LM6132AIN, LM6132BIN N08E Rails 8-Pin Small Outline LM6132AIM, LM6132BIM M08A Rails LM6132AIMX, LM6132BIMX M08A Tape and Reel 14-Pin Molded DIP LM6134AIN, LM6134BIN N14A Rails 14-Pin Small Outline LM6134AIM, LM6134BIM M14A Rails LM6134AIMX, LM6134BIMX M14A Tape and Reel 8-Pin DIP/SO DS012349-1 Top View 14-Pin DIP/SO DS012349-2 Top View April 2000 LM6132 Dual and LM6134 Quad, Low Power 10 MHz Rail-to-Rail I/O Operational Amplifiers © 2000 National Semiconductor Corporation DS012349 www.national.com

Absolute Maximum Ratings(Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 2) 2500V Differential Input Voltage 15V Voltage at Input/Output Pin (V +)+0.3V, (V−)−0.3V Supply Voltage (V+–V −) 35V Current at Input Pin ±10 mA Current at Output Pin (Note 3) ±25 mA Current at Power Supply Pin 50 mA Lead Temp. (soldering, 10 sec.) 260˚C Storage Temperature Range −65˚C to +150˚C Junction Temperature (Note 4) 150˚C Operating Ratings(Note 1) Supply Voltage 1.8V ≤ VS ≤ 24V Junction Temperature Range LM6132, LM6134 −40˚C ≤ TJ ≤ +85˚C Thermal resistance (θJA) N Package, 8-pin Molded DIP 115˚C/W M Package, 8-pin Surface Mount 193˚C/W N Package, 14-pin Molded DIP 81˚C/W M Package, 14-pin Surface Mount 126˚C/W 5.0V DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 5.0V, V− = 0V, VCM =V O =V +/2 and RL > 1M Ω to VS/2. Boldfacelimits apply at the temperature extremes Symbol Parameter Conditions Typ (Note 5) LM6134AI LM6134BI UnitsLM6132AI LM6132BI Limit Limit (Note 6) (Note 6) VOS Input Offset Voltage 0.25 2 mV max TCV OS Input Offset Voltage Average Drift 5 µV/C IB Input Bias Current 0V ≤ VCM ≤ 5V 110 140 300 180 350 nA max IOS Input Offset Current 3.4 30 nA max R IN Input Resistance, CM 104 M Ω CMRR Common Mode Rejection Ratio 0V ≤ VCM ≤ 4V 100 75 70 dB min0V ≤ VCM ≤ 5V 80 60 PSRR Power Supply Rejection Ratio ±2.5V ≤ VS ≤ ±12V 82 78 dB min VCM Input Common-Mode Voltage Range −0.25 00 V5.25 5.0 5.0 AV Large Signal Voltage Gain R L = 10k 100 25 V/mV min VO Output Swing 100k Load 4.992 4.98 4.93 4.98 4.93 V min 0.007 0.017 0.019 0.017 0.019 V max 10k Load 4.952 4.94 4.85 4.94 4.85 V min 0.032 0.07 0.09 0.07 0.09 V max 5k Load 4.923 4.90 4.85 4.90 4.85 V min 0.051 0.095 0.12 0.095 0.12 V max ISC Output Short Circuit Current LM6132 Sourcing 4 2 mA min Sinking 3.5 1.8 1.8 1.8 mA min LM6132/LM6134 www.national.com 2

5.0V DC Electrical Characteristics(Continued) Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 5.0V, V− = 0V, VCM =V O =V +/2 and RL > 1M Ω to VS/2. Boldfacelimits apply at the temperature extremes Symbol Parameter Conditions Typ (Note 5) LM6134AI LM6134BI UnitsLM6132AI LM6132BI Limit Limit (Note 6) (Note 6) ISC Output Short Circuit Current LM6134 Sourcing 3 2 1.6 mA min Sinking 3.5 1.8 1.3 1.8 mA min IS Supply Current Per Amplifier 360 400 450 400 450 µA max 5.0V AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 5.0V, V− = 0V, VCM =V O =V +/2 and RL > 1M Ω to VS/2. Boldfacelimits apply at the temperature extremes Symbol Parameter Conditions Typ (Note 5) LM6134AI LM6134BI UnitsLM6132AI LM6132BI Limit Limit (Note 6) (Note 6) SR Slew Rate ±4V @ VS = ±6V 14 8 8 V/µs R S < 1k Ω 77 min GBW Gain-Bandwidth Product f = 20 kHz 10 7.4 7.4 MHz 77 min θm Phase Margin R L = 10k 33 deg G m Gain Margin R L = 10k 10 dB en Input Referred Voltage Noise f = 1 kHz 27 in Input Referred Current Noise f = 1 kHz 0.18 LM6132/LM6134 www.national.com3

2.7V DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 2.7V, V− = 0V, VCM =V O =V +/2 and RL > 1M Ω to VS/2. Boldfacelimits apply at the temperature extreme Symbol Parameter Conditions Typ (Note 5) LM6134AI LM6134BI UnitsLM6132AI LM6132BI Limit Limit (Note 6) (Note 6) VOS Input Offset Voltage 0.12 2 6 mV 81 2 max IB Input Bias Current 0V ≤ VCM ≤ 2.7V 90 nA IOS Input Offset Current 2.8 nA R IN Input Resistance 134 M Ω CMRR Common Mode 0V ≤ VCM ≤ 2.7V 82 dB Rejection Ratio PSRR Power Supply ±1.35V ≤ VS ≤ ±12V 80 dB Rejection Ratio VCM Input Common-Mode 2.7 2.7 V Voltage Range 0 0 A V Large Signal R L = 10k 100 V/mV Voltage Gain VO Output Swing R L = 100k 0.03 0.08 0.08 V 0.112 0.112 max 2.66 2.65 2.65 V 2.25 2.25 min IS Supply Current Per Amplifier 330 µA 2.7V AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 2.7V, V− = 0V, VCM =V O =V +/2 and RL > 1M Ω to VS/2. Symbol Parameter Conditions Typ (Note 5) LM6134AI LM6134BI UnitsLM6132AI LM6132BI Limit Limit (Note 6) (Note 6) GBW Gain-Bandwidth Product R L = 10k, f = 20 kHz 7 MHz θm Phase Margin R L = 10k 23 deg G m Gain Margin 12 dB LM6132/LM6134 www.national.com 4

Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 24V, V− = 0V, VCM =V O =V +/2 and RL > 1M Ω to VS/2. Boldfacelimits apply at the temperature extreme Symbol Parameter Conditions Typ (Note 5) LM6134AI LM6134BI UnitsLM6132AI LM6132BI Limit Limit (Note 6) (Note 6) VOS Input Offset Voltage 1.7 3 7 mV 59 max IB Input Bias Current 0V ≤ VCM ≤ 24V 125 nA IOS Input Offset Current 4.8 nA R IN Input Resistance 210 M Ω CMRR Common Mode 0V ≤ VCM ≤ 24V 80 dB Rejection Ratio PSRR Power Supply 2.7V ≤ VS ≤ 24V 82 dB Rejection Ratio VCM Input Common-Mode −0.25 0 0 V min Voltage Range 24.25 24 24 V max A V Large Signal R L = 10k 102 V/mV Voltage Gain VO Output Swing R L = 10k 0.075 0.15 0.15 V max 23.86 23.8 23.8 V min IS Supply Current Per Amplifier 390 450 450 µA 490 490 max Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 24V, V− = 0V, VCM =V O =V +/2 and RL > 1M Ω to VS/2. Symbol Parameter Conditions Typ (Note 5) LM6134AI LM6134BI UnitsLM6132AI LM6132BI Limit Limit (Note 6) (Note 6) GBW Gain-Bandwidth Product R L = 10k, f = 20 kHz 11 MHz θm Phase Margin R L = 10k 23 deg G m Gain Margin R L = 10k 12 dB THD + N Total Harmonic A V = +1, VO = 20VP-P 0.0015 % Distortion and Noise f = 10 kHz Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in- tended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical characteristics. Note 2:Human body model, 1.5 kΩ in series with 100 pF. Note 3:Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the maximum allowed junction temperature of 150˚C. Note 4:The maximum power dissipation is a function of TJ(max),θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD =( TJ(max) −T A)/θJA. All numbers apply for packages soldered directly into a PC board. Note 5:Typical Values represent the most likely parametric norm. Note 6:All limits are guaranteed by testing or statistical analysis. LM6132/LM6134 www.national.com5

Typical Performance CharacteristicsTA = 25˚C, RL =1 0k Ω unless otherwise specified Supply Current vs Supply Voltage DS012349-3 Offset Voltage vs Supply Voltage DS012349-5 dV OS vs VCM DS012349-6 dV OS vs VCM DS012349-7 dV OS vs VCM DS012349-8 Ibias vs VCM DS012349-9 Ibias vs VCM DS012349-10 Ibias vs VCM DS012349-11 Input Bias Current vs Supply Voltage DS012349-12 Neg PSRR vs Frequency DS012349-13 Pos PSSR vs Frequency DS012349-14 dV OS vs Output Voltage DS012349-15 LM6132/LM6134 www.national.com 6

Typical Performance CharacteristicsTA = 25˚C, RL =1 0k Ω unless otherwise specified (Continued) dV OS vs Output Voltage DS012349-16 dV OS vs Output Voltage DS012349-17 CMRR vs Frequency DS012349-18 Output Voltage vs Sinking Current DS012349-19 Output Voltage vs Sinking Current DS012349-20 Output Voltage vs Sinking Current DS012349-21 Output Voltage vs Sourcing Current DS012349-22 Output Voltage vs Sourcing Current DS012349-23 Output Voltage vs Sourcing Current DS012349-24 LM6132/LM6134 www.national.com7

Typical Performance CharacteristicsTA = 25˚C, RL =1 0k Ω unless otherwise specified (Continued) LM6132/34 Application Hints The LM6132 brings a new level of ease of use to opamp sys- tem design. With greater than rail-to-rail input voltage range concern over exceeding the common-mode voltage range is elimi- nated. Rail-to-rail output swing provides the maximum possible dy- namic range at the output. This is particularly important when operating on low supply voltages. The high gain-bandwidth with low supply current opens new battery powered applications, where high power consump- tion, previously reduced battery life to unacceptable levels. To take advantage of these features, some ideas should be kept in mind. ENHANCED SLEW RATE Unlike most bipolar opamps, the unique phase reversal prevention/speed-up circuit in the input stage eliminates phase reversal and allows the slew rate to be very much a function of the input signal amplitude. Figure 2shows how excess input signal is routed around the input collector-base junctions directly to the current mirrors. The LM6132/34 input stage converts the input voltage change to a current change. This current change drives the current mirrors through the collectors of Q1–Q2, Q3–Q4 when the input levels are normal. Noise Voltage vs Frequency DS012349-25 Noise Current vs Frequency DS012349-38 NF vs Source Resistance DS012349-39 Gain and Phase vs Frequency DS012349-28 Gain and Phase vs Frequency DS012349-29 Gain and Phase vs Frequency DS012349-30 GBW vs Supply Voltage at 20 kHz DS012349-31 LM6132/LM6134 www.national.com 8

LM6132/34 Application Hints (Continued) cellent response is obtained with a Cf of 39 pF. InFigure 4, the supplies have been reduced to±2.5V, the pulse is 4 Vp-p and Cfis 39 pF. The best value for the compensation capacitor should be established after the board layout is fin- ished because the value is dependent on board stray capac- ity, the value of the feedback resistor, the closed loop gain and, to some extent, the supply voltage. Another effect that is common to all opamps is the phase shift caused by the feedback resistor and the input capaci- tance. This phase shift also reduces phase margin. This ef- fect is taken care of at the same time as the effect of the ca- pacitive load when the capacitor is placed across the feedback resistor. The circuit shown in Figure 5was used for these scope photos. Figure 6shows a method for compensating for load capaci- tance (Co) effects by adding both an isolation resistor Ro at the output and a feedback capacitor CFdirectly between the output and the inverting input pin. Feedback capacitor CF compensates for the pole introduced by Ro and Co, minimiz- ing ringing in the output waveform while the feedback resis- tor R F compensates for dc inaccuracies introduced by Ro. Depending on the size of the load capacitance, the value of R ois typically chosen to be between 100Ω t o1kΩ . Typical Applications

3 OPAMP INSTRUMENTATION AMP WITH

RAIL-TO-RAIL INPUT AND OUTPUT Using the LM6134, a 3 opamp instrumentation amplifier with rail-to-rail inputs and rail to rail output can be made. These features make these instrumentation amplifiers ideal for single supply systems. Some manufacturers use a precision voltage divider array of 5 resistors to divide the common-mode voltage to get an in- put range of rail-to-rail or greater. The problem with this method is that it also divides the signal, so to even get unity gain, the amplifier must be run at high closed loop gains. This raises the noise and drift by the internal gain factor and lowers the input impedance. Any mismatch in these preci- sion resistors reduces the CMR as well. Using the LM6134, all of these problems are eliminated. In this example, amplifiers A and B act as buffers to the dif- ferential stage ( Figure 7). These buffers assure that the input impedance is over 100 MΩ and they eliminate the require- ment for precision matched resistors in the input stage. They also assure that the difference amp is driven from a voltage source. This is necessary to maintain the CMR set by the matching of R1–R2 with R3–R4. DS012349-45 FIGURE 3. DS012349-42 FIGURE 4. DS012349-43 FIGURE 5. DS012349-37 FIGURE 6. LM6132/LM6134 www.national.com 10

Typical Applications(Continued) FLAT PANEL DISPLAY BUFFERING Three features of the LM6132/34 make it a superb choice for TFT LCD applications. First, its low current draw (360 µA per amplifier @ 5V) makes it an ideal choice for battery powered applications such as in laptop computers. Second, since the device operates down to 2.7V, it is a natural choice for next generation 3V TFT panels. Last, but not least, the large ca- pacitive drive capability of the LM6132 comes in very handy in driving highly capacitive loads that are characteristic of LCD display drivers. The large capacitive drive capability of the LM6132/34 al- lows it to be used as buffers for the gamma correction refer- ence voltage inputs of resistor-DAC type column (Source) drivers in TFT LCD panels. This amplifier is also useful for buffering only the center reference voltage input of Capacitor-DAC type column (Source) drivers such as the LMC750X series. Since for VGA and SVGA displays, the buffered voltages must settle within approximately 4 µs, the well known tech- nique of using a small isolation resistor in series with the am- plifier’s output very effectively dampens the ringing at the output. With its wide supply voltage range of 2.7V to 24V), the LM6132/34 can be used for a diverse range of applications. The system designer is thus able to choose a single device type that serves many sub-circuits in the system, eliminating the need to specify multiple devices in the bill of materials. Along with its sister parts, the LM6142 and LM6152 that have the same wide supply voltage capability, choice of the LM6132 in a design eliminates the need to search for mul- tiple sources for new designs. DS012349-44 FIGURE 7. LM6132/LM6134 www.national.com11

Physical Dimensionsinches (millimeters) unless otherwise noted 8-Lead (0.150" Wide) Molded Small Outline Package, JEDEC Order Number LM6132AIM, LM6132BIM, LM6132AIMX or LM6132BIMX 14-Lead (0.300" Wide) Molded Small Outline Package, JEDEC Order Number LM6134AIM, LM6134BIM, LM6134AIMX or LM6134BIMX LM6132/LM6134 www.national.com 12

Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) 8-Lead (0.300" Wide) Molded Dual-In-Line Package Order Number LM6132AIN, LM6132BIN 14-Lead (0.300" Wide) Molded Dual-In-Line Package Order Number LM6134AIN, LM6134BIN LM6132/LM6134 www.national.com13

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com LM6132 Dual and LM6134 Quad, Low Power 10 MHz Rail-to-Rail I/O Operational Amplifiers National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.