Datasheet

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LMC7111

www.ti.com

SNOS753E –AUGUST 1999–REVISED MARCH 2013

LMC7111 Tiny CMOS Operational Amplifier with Rail-to-Rail Input and Output

Check for Samples: LMC7111

FEATURES

DESCRIPTION

The LMC7111 is a micropower CMOS operational

• Tiny 5-Pin SOT-23 Package Saves Space

amplifier available in the space saving SOT-23

• Very Wide Common Mode Input Range

package. This makes the LMC7111 ideal for space

• Specified at 2.7V, 5V, and 10V

and weight critical designs. The wide common-mode

input range makes it easy to design battery

• Typical Supply Current 25 μA at 5V

monitoring circuits which sense signals above the V

• 50 kHz Gain-Bandwidth at 5V

supply. The main benefits of the Tiny package are

• Similar to Popular LMC6462

most apparent in small portable electronic devices,

such as mobile phones, pagers, and portable

• Output to Within 20 mV of Supply Rail at 100k

computers. The tiny amplifiers can be placed on a

Load

board where they are needed, simplifying board

• Good Capacitive Load Drive

layout.

APPLICATIONS

• Mobile Communications

• Portable Computing

• Current Sensing for Battery Chargers

• Voltage Reference Buffering

• Sensor Interface

• Stable Bias for GaAs RF Amps

Connection Diagram

Figure 1. 8-Pin PDIP Figure 2. 5-Pin SOT-23

Top View Top View

Figure 3. Actual Size

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (26 pages)

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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 LMC7111 Tiny CMOS Operational Amplifier with Rail-to-Rail Input and Output Check for Samples: LMC7111 FEATURES DESCRIPTION • • • • • • • The LMC7111 is a micropower CMOS operational amplifier available in the space saving SOT-23 package. This makes the LMC7111 ideal for space and weight critical designs. The wide common-mode input range makes it easy to design battery monitoring circuits which sense signals above the V+ supply.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings ESD Tolerance (3) (1) (2) SOT-23 Package 2000V PDIP Package 1500V Differential Input Voltage ±Supply Voltage (V+) + 0.3V, (V−) − 0.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 2.7V DC Electrical Characteristics (continued) Unless otherwise specified, all limits specified for TJ = 25°C, V+ = 2.7V, V− = 0V, VCM = VO = V+/2 and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol VCM CIN Parameter Conditions Input Common-Mode Voltage Range V+ = 2.7V For CMRR ≥ 50 dB LMC7111AI Limit (2) LMC7111BI Limit (2) Units −0.10 0.0 0.40 0.0 0.40 V min 2.8 2.7 2.25 2.7 2.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 www.ti.com 3.3V DC Electrical Characteristics Unless otherwise specified, all limits specified for TJ = 25°C, V+ = 3.3V, V− = 0V, VCM = VO = V+/2 and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol VCM (1) (2) Parameter Input Common-Mode Voltage Range Conditions V+ = 3.3V For CMRR ≥ 50 dB Typ (1) LMC7111AI Limit (2) LMC7111BI Limit (2) Units −0.25 −0.1 0.00 −0.1 0.00 V min 3.5 3.4 3.2 3.4 3.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 5V AC Electrical Characteristics Unless otherwise specified, all limits specified for TJ = 25°C, V+ = 5V, V− = 0V, VCM = VO = V+/2 and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Parameter Typ Positive Going Slew Rate (3) SR Slew Rate GBW Gain-Bandwidth Product (1) (2) (3) Conditions (1) 0.027 LMC7111AI Limit (2) LMC7111BI Limit (2) Units 0.015 0.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 www.ti.com 10V AC Electrical Characteristics Unless otherwise specified, all limits specified for TJ = 25°C, V+ = 10V, V− = 0V, VCM = VO = V+/2 and RL > 1 MΩ. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions (3) LMC7111AI Limit (2) LMC7111BI Limit (2) Units SR Slew Rate 0.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 Typical Performance Characteristics TA = 25°C unless specified, Single Supply Supply Current vs. Supply Voltage Voltage Noise vs. Frequency Figure 4. Figure 5. 2.7V Performance Offset Voltage vs. Common Mode Voltage @ 2.7V Sinking Output vs. Output Voltage Figure 6. Figure 7. Sourcing Output vs. Output Voltage Gain and Phase vs. Capacitive Load @ 2.7V Figure 8. Figure 9.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 www.ti.com 2.7V Performance (continued) Gain and Phase vs. Capacitive Load @ 2.7V Gain and Phase vs. Capacitive Load @ 2.7V Figure 10. Figure 11. 3V Performance 8 Voltage Noise vs. Common Mode Voltage @ 3V Output Voltage vs. Input Voltage @ 3V Figure 12. Figure 13. Offset Voltage vs. Common Mode Voltage @ 3V Sourcing Output vs. Output Voltage Figure 14. Figure 15.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 3V Performance (continued) Sinking Output vs. Output Voltage Gain and Phase vs. Capacitive Load @ 3V Figure 16. Figure 17. Gain and Phase vs. Capacitive Load @ 3V Gain and Phase vs. Capacitive Load @ 3V Figure 18. Figure 19. 5V Performance Voltage Noise vs. Common Mode Voltage @ 5V Output Voltage vs. Input Voltage @ 5V Figure 20. Figure 21.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 www.ti.com 5V Performance (continued) 10 Offset Voltage vs. Common Mode Voltage @ 5V Sourcing Output vs. Output Voltage Figure 22. Figure 23. Sinking Output vs. Output Voltage Gain and Phase vs. Capacitive Load @ 5V Figure 24. Figure 25. Gain and Phase vs. Capacitive Load @ 5V Gain and Phase vs. Capacitive Load @ 5V Figure 26. Figure 27.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 5V Performance (continued) Non-Inverting Small Signal Pulse Response at 5V Non-Inverting Small Signal Pulse Response at 5V Figure 28. Figure 29. Non-Inverting Small Signal Pulse Response at 5V Non-Inverting Large Signal Pulse Response at 5V Figure 30. Figure 31. Non-Inverting Large Signal Pulse Response at 5V Non-Inverting Large Signal Pulse Response at 5V Figure 32. Figure 33.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 www.ti.com 5V Performance (continued) 12 Inverting Small Signal Pulse Response at 5V Inverting Small Signal Pulse Response at 5V Figure 34. Figure 35. Inverting Small Signal Pulse Response at 5V Inverting Large Signal Pulse Response at 5V Figure 36. Figure 37. Inverting Large Signal Pulse Response at 5V Inverting Large Signal Pulse Response at 5V Figure 38. Figure 39.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 10V Performance Voltage Noise vs. Common Mode Voltage @ 10V Output Voltage vs. Input Voltage @ 10V Figure 40. Figure 41. Offset Voltage vs. Common Mode Voltage @ 10V Sourcing Output vs. Output Voltage Figure 42. Figure 43. Sinking Output vs. Output Voltage Gain and Phase vs. Capacitive Load @ 10V Figure 44. Figure 45.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 www.ti.com 10V Performance (continued) 14 Gain and Phase vs. Capacitive Load @ 10V Gain and Phase vs. Capacitive Load @ 10V Figure 46. Figure 47. Non-Inverting Small Signal Pulse Response at 10V Non-Inverting Large Signal Pulse Response at 10V Figure 48. Figure 49. Inverting Small Signal Pulse Response at 10V Inverting Large Signal Pulse Response at 10V Figure 50. Figure 51.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 APPLICATION INFORMATION BENEFITS OF THE LMC7111 TINY AMP Size The small footprint of the SOT-23 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 electronic products. Because they are easier to carry, many customers 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.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 www.ti.com CAPACITIVE LOAD TOLERANCE The LMC7111 can typically directly drive a 300 pF load with VS = 10V at unity gain without oscillating. The unity gain follower is the most sensitive configuration. Direct capacitive loading reduces the phase margin of op-amps. The combination of the op-amp's output impedance and the capacitive load induces phase lag. This results in either an underdamped pulse response or oscillation.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 BIASING GaAs RF AMPLIFIERS The capacitive load capability, low current draw, and small size of the SOT-23 LMC7111 make it a good choice for providing a stable negative bias to other integrated circuits. The very small size of the LMC7111 and the LM4040 reference take up very little board space. CF and Risolation prevent oscillations when driving capacitive loads. Figure 55.
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LMC7111 SNOS753E – AUGUST 1999 – REVISED MARCH 2013 • • www.ti.com Quiescent and dynamic supply current Output swing dependence on loading conditions and many more characteristics as listed on the macro model disk. Visit the LMC7111 product page on http://www.ti.com for the spice model. ADDITIONAL SOT-23 TINY DEVICES Additional parts are available in the space saving SOT-23 Tiny package, including amplifiers, voltage references, and voltage regulators.
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LMC7111 www.ti.com SNOS753E – AUGUST 1999 – REVISED MARCH 2013 REVISION HISTORY Changes from Revision D (March 2013) to Revision E • Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 1-Nov-2013 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.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Mar-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) LMC7111BIM5 SOT-23 DBV 5 1000 178.0 8.4 LMC7111BIM5/NOPB SOT-23 DBV 5 1000 178.0 LMC7111BIM5X SOT-23 DBV 5 3000 178.0 LMC7111BIM5X/NOPB SOT-23 DBV 5 3000 178.0 3.2 3.2 1.4 4.0 8.0 Q3 8.4 3.2 3.2 1.4 4.0 8.0 Q3 8.4 3.2 3.2 1.4 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Mar-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMC7111BIM5 SOT-23 DBV 5 1000 210.0 185.0 35.0 LMC7111BIM5/NOPB SOT-23 DBV 5 1000 210.0 185.0 35.0 LMC7111BIM5X SOT-23 DBV 5 3000 210.0 185.0 35.0 LMC7111BIM5X/NOPB SOT-23 DBV 5 3000 210.0 185.0 35.
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