SNOSA71L October 2004  – September 2015 LMP2011 , LMP2012

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information: LMP2011
    5. 6.5 Thermal Information: LMP2012
    6. 6.6 2.7-V DC Electrical Characteristics
    7. 6.7 2.7-V AC Electrical Characteristics
    8. 6.8 5-V DC Electrical Characteristics
    9. 6.9 5-V AC Electrical Characteristics
    10. 6.10Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1How the LMP201x Works
      2. 7.3.2The Benefits of LMP201x: No 1/F Noise
      3. 7.3.3No External Capacitors Required
      4. 7.3.4Copper Leadframe
      5. 7.3.5More Benefits
    4. 7.4Device Functional Modes
      1. 7.4.1Input Currents
      2. 7.4.2Overload Recovery
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Applications
      1. 8.2.1Extending Supply Voltages and Output Swing with a Composite Amplifier
        1. 8.2.1.1Design Requirements
        2. 8.2.1.2Detailed Design Procedure
        3. 8.2.1.3Application Results
      2. 8.2.2Precision Strain-gauge Amplifier
      3. 8.2.3ADC Input Amplifier
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Device Support
      1. 11.1.1Development Support
    2. 11.2Documentation Support
      1. 11.2.1Related Documentation
    3. 11.3Related Links
    4. 11.4Community Resources
    5. 11.5Trademarks
    6. 11.6Electrostatic Discharge Caution
    7. 11.7Glossary
  12. 12Mechanical, Packaging, and Orderable Information

1 Features

    (For VS = 5 V, Typical Unless Otherwise Noted)

  • Low Ensured VOS Over Temperature 60 µV
  • Low Noise with No 1/f 35nV/√Hz
  • High CMRR 130 dB
  • High PSRR 120 dB
  • High AVOL 130 dB
  • Wide Gain-Bandwidth Product 3 MHz
  • High Slew Rate 4 V/µs
  • Low Supply Current 930 µA
  • Rail-to-Rail Output 30 mV
  • No External Capacitors Required

2 Applications

  • Precision Instrumentation Amplifiers
  • Thermocouple Amplifiers
  • Strain Gauge Bridge Amplifier

3 Description

The LMP201x series are the first members of TI's new LMP™ precision amplifier family. The LMP201x series offers unprecedented accuracy and stability in space-saving miniature packaging, offered at an affordable price. This device utilizes patented auto-zero techniques to measure and continually correct the input offset error voltage. The result is an amplifier which is ultra-stable over time and temperature. It has excellent CMRR and PSRR ratings, and does not exhibit the familiar 1/f voltage and current noise increase that plagues traditional amplifiers. The combination of the LMP201x characteristics makes it a good choice for transducer amplifiers, high gain configurations, ADC buffer amplifiers, DAC I-V conversion, and any other 2.7-V to 5-V application requiring precision and long term stability.

Other useful benefits of the LMP201x are rail-to-rail output, a low supply current of 930 µA, and wide gain-bandwidth product of 3 MHz. These versatile features found in the LMP201x provide high performance and ease of use.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
LMP2011SOIC (8)4.90 mm × 3.91 mm
SOT-23 (5)2.90 mm × 1.60 mm
LMP2012SOIC (8)4.90 mm × 3.91 mm
VSSOP (8)3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Bridge Amplifier

LMP2011 LMP2012 20071518.gif

Offset Voltage vs Common Mode Voltage

LMP2011 LMP2012 20071557.gif