LMC7111BIN

LMC7111 NSC | Alldatasheet

Document overview

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Technical content

Features

n Tiny SOT23-5 package saves space n Very wide common mode input range n Specified at 2.7V, 5V, and 10V n Typical supply current 25 µA at 5V n 50 kHz gain-bandwidth at 5V n Similar to popular LMC6462 n Output to within 20 mV of supply rail at 100k load n Good capacitive load drive

Applications

n Current sensing for battery chargers n Voltage reference buffering n Sensor interface n Stable bias for GaAs RF amps Connection Diagrams

Ordering Information

Package Ordering NSC Drawing Package Transport Media Information Number Marking 8-Pin DIP LMC7111AIN N08E LMC7111AIN Rails 8-Pin DIP LMC7111BIN N08E LMC7111BIN Rails 5-Pin SOT23-5 LMC7111BIM5 MA05A A01B 1k units Tape and Reel LMC7111BIM5X MA05A A01B 3k Units Tape and Reel 8-Pin DIP DS012352-1 Top View 5-Pin SOT23-5 DS012352-2 Top View Actual Size DS012352-19 August 1999 LMC7111 Tiny CMOS Operational Amplifier with Rail-to-Rail Input and Output © 1999 National Semiconductor Corporation DS012352 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 SOT23-5 (Note 2) 2000V ESD Tolerance DIP Package (Note 2) 1500V Differential Input Voltage ±Supply Voltage Voltage at Input/Output Pin (V +) + 0.3V, (V−) − 0.3V Supply Voltage (V+ −V −)1 1 V Current at Input Pin ±5m A Current at Output Pin (Note 3) ±30 mA Current at Power Supply Pin 30 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 2.5V ≤ V+ ≤ 11V Junction Temperature Range LMC7111AI, LMC7111BI −40˚C ≤ TJ ≤ +85˚C Thermal Resistance (θJA) N Package, 8-Pin Molded DIP 115˚C/W 5-Pin Surface Mount 325˚C/W 2.7V DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 2.7V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) VOS Input Offset Voltage V + = 2.7V 0.9 3 7 mV 59 max TCV OS Input Offset Voltage 2.0 µV/˚C Average Drift I B Input Bias Current (Note 9) 0.1 1 1 pA 20 20 max IOS Input Offset Current (Note 9) 0.01 0.5 0.5 pA 10 10 max R IN Input Resistance >10 Tera Ω +PSRR Positive Power Supply 2.7V ≤ V+ ≤5.0V, 60 55 55 dB Rejection Ratio V − = 0V, VO = 2.5V 50 50 min −PSRR Negative Power Supply −2.7V ≤ V− ≤−5.0V, 60 55 55 dB Rejection Ratio V − = 0V, VO = 2.5V 50 50 min VCM Input Common-Mode V + = 2.7V −0.10 0.0 0.0 V Voltage Range For CMRR ≥ 50 dB 0.40 0.40 min 2.8 2.7 2.7 V 2.25 2.25 max C IN Common-Mode Input 3 pF Capacitance V O Output Swing V + = 2.7V 2.69 2.68 2.68 V R L = 100 kΩ 2.4 2.4 min 0.01 0.02 0.02 V 0.08 0.08 max V+ = 2.7V 2.65 2.6 2.6 V R L = 10 kΩ 2.4 2.4 min 0.03 0.1 0.1 V 0.3 0.3 max ISC Output Short Circuit Sourcing, V O = 0V 7 1 1 mA Current 0.7 0.7 min Sinking, VO = 2.7V 7 1 1 mA 0.7 0.7 min www.national.com 2

2.7V DC Electrical Characteristics(Continued) Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 2.7V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) AVOL Voltage Gain Sourcing 400 V/mv min Sinking 150 V/mv min IS Supply Current V + = +2.7V, 20 45 50 µA VO = V+/2 60 65 max 2.7V AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 2.7V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) SR Slew Rate (Note 8) 0.015 V/µs GBW Gain-Bandwidth Product 40 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 at 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. Note 8:Connected as Voltage Follower with 1.0V step input. Number specified is the slower of the positive and negative slew rates. Input referred, V+ = 2.7V and R L = 100 kΩ connected to 1.35V. Amp excited with 1 kHz to produce VO = 1V PP . Note 9:Bias Current guaranteed by design and processing. Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 3V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) VCM Input Common-Mode V + = 3V −0.25 0.0 0.0 V Voltage Range For CMRR ≥ 50 dB min 3.2 3.0 3.0 V 2.8 2.8 max www.national.com3

3.3V DC Electrical Characteristics Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 3.3V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) VCM Input Common-Mode V + = 3.3V −0.25 −0.1 −0.1 V Voltage Range For CMRR ≥ 50 dB 0.00 0.00 min 3.5 3.4 3.4 V 3.2 3.2 max Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 5V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) VOS Input Offset Voltage V + = 5V 0.9 mV max TCV OS Input Offset Voltage 2.0 µV/˚C Average Drift I B Input Bias Current (Note 9) 0.1 1 1 pA 20 20 max IOS Input Offset Current (Note 9) 0.01 0.5 0.5 pA 10 10 max R IN Input Resistance >10 Tera Ω CMRR Common Mode 0V ≤ VCM ≤ 5V 85 70 60 dB Rejection Ratio min +PSRR Positive Power Supply 5V ≤ V+ ≤10V, 85 70 60 dB Rejection Ratio V − = 0V, VO = 2.5V min −PSRR Negative Power Supply −5V ≤ V− ≤−10V, 85 70 60 dB Rejection Ratio V − = 0V, VO = −2.5V min VCM Input Common-Mode V + = 5V −0.3 −0.20 −0.20 V Voltage Range For CMRR ≥ 50 dB 0.00 0.00 min 5.25 5.20 5.20 V 5.00 5.00 max C IN Common-Mode Input 3 pF Capacitance V O Output Swing V + = 5V 4.99 4.98 4.98 Vmin R L = 100 kΩ 0.01 0.02 0.02 Vmax V+ = 5V 4.98 4.9 4.9 Vmin R L = 10 kΩ 0.02 0.1 0.1 Vmin ISC Output Short Circuit Sourcing, V O = 0V 7 5 5 mA Current 3.5 3.5 min Sinking, VO = 3V 7 5 5 mA 3.5 3.5 min AVOL Voltage Gain Sourcing 500 V/mv min Sinking 200 V/mv min IS Supply Current V + = +5V, 25 µA VO = V+/2 max www.national.com 4

Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 5V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) SR Slew Rate Positive Going Slew Rate 0.027 0.015 0.010 V/µs (Note 8) GBW Gain-Bandwidth Product 50 kHz Note 10:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics. Note 11:Human body model, 1.5 kΩ in series with 100 pF. Note 12: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 at 150˚C. Note 13: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 14:Typical Values represent the most likely parametric norm. Note 15:All limits are guaranteed by testing or statistical analysis. Note 17:Connected as Voltage Follower with 1.0V step input. Number specified is the slower of the positive slew rate. The negative slew rate is faster. Input referred, V+ = 5V and RL = 100 kΩ connected to 1.5V. Amp excited with 1 kHz to produce VO = 1V PP . Note 18:Bias Current guaranteed by design and processing. Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 10V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) VOS Input Offset Voltage V + = 10V 0.9 3 7 mV 59 max TCV OS Input Offset Voltage 2.0 µV/˚C Average Drift I B Input Bias Current 0.1 1 1 pA 20 20 max IOS Input Offset Current 0.01 0.5 0.5 pA 10 10 max R IN Input Resistance >10 Tera Ω +PSRR Positive Power Supply 5V ≤ V+ ≤10V, 80 dB Rejection Ratio V − = 0V, VO = 2.5V min −PSRR Negative Power Supply −5V ≤ V− ≤−10V, 80 dB Rejection Ratio V − = 0V, VO = 2.5V min VCM Input Common-Mode V + = 10V −0.2 −0.15 −0.15 V Voltage Range For CMRR ≥ 50 dB 0.00 0.00 min 10.2 10.15 10.15 V 10.00 10.00 max C IN Common-Mode Input 3 pF Capacitance I SC Output Short Circuit Sourcing, V O = 0V 30 20 20 mA Current (Note 9) 77 min Sinking, VO = 10V 30 20 20 mA 77 min www.national.com5

Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 10V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) AVOL Voltage Gain Sourcing 500 V/mv 100 kΩ Load min Sinking 200 V/mv min I S Supply Current V + = +10V, 25 50 60 µA VO = V+/2 65 75 max VO Output Swing V + = 10V 9.99 9.98 9.98 Vmin R L = 100 kΩ 0.01 0.02 0.02 Vmax V+ = 10V 9.98 9.9 9.9 Vmin R L = 10 kΩ 0.02 0.1 0.1 Vmin Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 10V, V− = 0V, VCM = VO = V+/2 and RL > 1M Ω .Bold- facelimits apply at the temperature extremes. Typ LMC7111AI LMC7111BI Symbol Parameter Conditions (Note 5) Limit Limit Units (Note 6) (Note 6) SR Slew Rate (Note 8) 0.03 V/µs GBW Gain-Bandwidth Product 50 kHz φ m Phase Margin 50 deg G m Gain Margin 15 dB Input-Referred f = 1 kHz 110 Voltage Noise V CM = 1V Input-Referred f = 1 kHz 0.03 Current Noise Note 19:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics. Note 20:Human body model, 1.5 kΩ in series with 100 pF. Note 21: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 at 150˚C. Note 22: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 23:Typical Values represent the most likely parametric norm. Note 24:All limits are guaranteed by testing or statistical analysis. Note 25:V+ = 10V, VCM = 5V and RL connected to 5V. For Sourcing tests, 5V≤ VO ≤ 10V. For Sinking tests, 0.5V≤ VO ≤ 5V. Note 26:Connected as Voltage Follower with 1.0V step input. Number specified is the slower of the positive and negative slew rates. Input referred, V+ = 10V and R L = 100 kΩ connected to 5V. Amp excited with 1 kHz to produce VO = 2V PP . Note 27:Operation near absolute maximum limits will adversely affect reliability. www.national.com 6

Typical Performance CharacteristicsTA = 25˚C unless specified, Single Supply 2.7V PERFORMANCE Supply Current vs Supply Voltage DS012352-3 Voltage Noise vs Frequency DS012352-4 Offset Voltage vs Common Mode Voltage @ 2.7V DS012352-68 Sinking Output vs Output Voltage DS012352-20 Sourcing Output vs Output Voltage DS012352-21 Gain and Phase vs Capacitive Load @ 2.7V DS012352-22 Gain and Phase vs Capacitive Load @ 2.7V DS012352-23 Gain and Phase vs Capacitive Load @ 2.7V DS012352-24 www.national.com7

Mode Voltage @ 3V DS012352-25 Output Voltage vs Input Voltage @ 3V DS012352-26 Offset Voltage vs Common Mode Voltage @ 3V DS012352-27 Sourcing Output vs Output Voltage DS012352-28 Sinking Output vs Output Voltage DS012352-29 Gain and Phase vs Capacitive Load @ 3V DS012352-30 Gain and Phase vs Capacitive Load @ 3V DS012352-31 Gain and Phase vs Capacitive Load @ 3V DS012352-32 www.national.com 8

Mode Voltage @ 5V DS012352-33 Output Voltage vs Input Voltage @ 5V DS012352-34 Offset Voltage vs Common Mode Voltage @ 5V DS012352-35 Sourcing Output vs Output Voltage DS012352-36 Sinking Output vs Output Voltage DS012352-37 Gain and Phase vs Capacitive Load @ 5V DS012352-38 Gain and Phase vs Capacitive Load @ 5V DS012352-39 Gain and Phase vs Capacitive Load @ 5V DS012352-40 Non-Inverting Small Signal Pulse Response at 5V DS012352-41 Non-Inverting Small Signal Pulse Response at 5V DS012352-42 Non-Inverting Small Signal Pulse Response at 5V DS012352-43 Non-Inverting Large Signal Pulse Response at 5V DS012352-44 www.national.com9

5V PERFORMANCE (Continued) 10V PERFORMANCE Non-Inverting Large Signal Pulse Response at 5V DS012352-45 Non-Inverting Large Signal Pulse Response at 5V DS012352-46 Inverting Small Signal Pulse Response at 5V DS012352-47 Inverting Small Signal Pulse Response at 5V DS012352-48 Inverting Small Signal Pulse Response at 5V DS012352-49 Inverting Large Signal Pulse Response at 5V DS012352-50 Inverting Large Signal Pulse Response at 5V DS012352-51 Inverting Large Signal Pulse Response at 5V DS012352-52 Voltage Noise vs Common Mode Voltage @ 10V DS012352-53 Output Voltage vs Input Voltage @ 10V DS012352-54 Offset Voltage vs Common Mode Voltage @ 10V DS012352-55 www.national.com 10

10V PERFORMANCE (Continued)

Application Information

1.0 Benefits of the LMC7111

Size.The small footprint of the SOT 23-5 packaged Tiny amp, (0.120 x 0.118 inches, 3.05 x 3.00 mm) saves space on printed circuit boards, and enable the design of smaller elec- tronic products. Because they are easier to carry, many cus- tomers prefer smaller and lighter products. Height.The height (0.056 inches, 1.43 mm) of the Tiny amp makes it possible to use it in PCMCIA type III cards. Signal Integrity.Signals can pick up noise between the sig- nal source and the amplifier. By using a physically smaller amplifier package, the Tiny amp can be placed closer to the signal source, reducing noise pickup and increasing signal integrity. The Tiny amp can also be placed next to the signal destination, such as a buffer for the reference of an analog to digital converter. Simplified Board Layout.The Tiny amp can simplify board layout in several ways. First, by placing an amp where amps are needed, instead of routing signals to a dual or quad de- vice, long pc traces may be avoided. By using multiple Tiny amps instead of duals or quads, com- plex signal routing and possibly crosstalk can be reduced. DIPs available for prototyping.LMC7111 amplifiers pack- aged in conventional 8-pin dip packages can be used for prototyping and evaluation without the need to use surface mounting in early project stages. Sourcing Output vs Output Voltage DS012352-56 Sinking Output vs Output Voltage DS012352-57 Gain and Phase vs Capacitive Load @ 10V DS012352-58 Gain and Phase vs Capacitive Load @ 10V DS012352-59 Gain and Phase vs Capacitive Load @ 10V DS012352-60 Non-Inverting Small Signal Pulse Response at 10V DS012352-61 Non-Inverting Large Signal Pulse Response at 10V DS012352-62 Inverting Small Signal Pulse Response at 10V DS012352-63 Inverting Large Signal Pulse Response at 10V DS012352-64 www.national.com11

vary over the life of the batteries.

2.0 Input Common Mode

put voltage exceeds the negative supply voltage. or out of the input pins, adversely affecting reliability.

3.0 Capacitive Load Tolerance

damped pulse response or oscillation. Figure 2. This simple tech-

4.0 Compensating for Input

cuit board parasitics to reduce phase margins. which typically provides significant overcompensation.

5.0 Output Swing

transistors which are connected to the same power supply. transistors all the way on or all the way off.

6.0 Biasing GaAs RF Amplifiers

viding a stable negative bias to other integrated circuits. ence take up very little board space. FIGURE 1. RI Input Current Protection for FIGURE 2. Resistive Isolation FIGURE 3. Cancelling the Effect of Input Capacitance

7.0 Reference Buffer for A-to-D Converters

8.0 Dual and Quad Devices with Similar Performance

ing. Please see the LMC6462/4 datasheet for details.

9.0 SPICE Macromodel

• Input common-mode voltage range
• Frequency and transient response
• Quiescent and dynamic supply current
• Output swing dependence on loading conditions and many more characteristics as listed on the macro model disk. Contact your local National Semiconductor sales of- fice to obtain an operational amplifier spice model library disk.

10.0 Additional SOT23-5 Tiny

LM7131 Tiny Video amp with 70 MHz gain bandwidth. fied at 2.7V, 5V and 15V supplies. C F and Risolationprevent oscillations when driving capacitive loads. FIGURE 4. Stable Negative Bias

Application Information(Continued) except the output can be used with a pull-up re- sistor to a voltage different than the supply volt- age. LP2980 Micropower SOT 50 mA Ultra Low-Dropout Regulator. LM4040 Precision micropower shunt voltage reference. Fixed voltages of 2.5000V, 4.096V, 5.000V, 8.192V and 10.000V. LM4041 Precision micropower shunt voltage reference 1.225V and adjustable. Contact your National Semiconductor representative for the latest information. www.national.com 14

SOT-23-5 Tape and Reel Specification TAPE FORMAT Tape Section # Cavities Cavity Status Cover Tape Status Leader 0 (min) Empty Sealed (Start End) 75 (min) Empty Sealed Carrier 3000 Filled Sealed

1000 Filled Sealed

Trailer 125 (min) Empty Sealed (Hub End) 0 (min) Empty Sealed TAPE DIMENSIONS Tape Size DIM A DIM Ao DIM B DIM Bo DIM F DIM Ko DIM P1 DIM W DS012352-15 www.national.com15

SOT-23-5 Tape and Reel Specification(Continued) REEL DIMENSIONS Tape Size A B C D N W1 W2 W3 DS012352-16 www.national.com 16

Physical Dimensionsinches (millimeters) unless otherwise noted *Suffix indicates number of units. See Ordering Information on first page. 5-Pin SOT Package Order Package Number LMC7111BIM5 * www.national.com17

Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) LIFE SUPPORT POLICY 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) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com 8-Pin Molded DIP 8-Lead (0.300" Wide) Molded Dual-In-Line Package Order Package Number LMC7111AIN or LMC7111BIN LMC7111 Tiny CMOS Operational Amplifier with Rail-to-Rail Input and Output 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.