SBOS641D June   2012  – September 2016 OPA4188

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Zero-Drift Amplifier Portfolio
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics: High-Voltage Operation, VS = ±4 V to ±18 V (VS = 8 V to 36 V)
    6. 7.6 Electrical Characteristics: Low-Voltage Operation, VS = ±2 V to < ±4 V (VS = +4 V to < +8 V)
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Phase-Reversal Protection
      2. 8.3.2 Capacitive Load and Stability
      3. 8.3.3 Electrical Overstress
      4. 8.3.4 EMI Rejection
    4. 8.4 Device Functional Modes
  9. 9 Applications and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Operating Characteristics
    2. 9.2 Typical Applications
      1. 9.2.1 Second Order Low Pass Filter
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
      2. 9.2.2 Discrete INA + Attenuation for ADC With a 3.3-V Supply
      3. 9.2.3 RTD Amplifier With Linearization
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Device Support
        1. 12.1.1.1 Development Support
          1. 12.1.1.1.1 TINA-TI (Free Software Download)
          2. 12.1.1.1.2 TI Precision Designs
          3. 12.1.1.1.3 WEBENCH® Filter Designer
      2. 12.1.2 Related Documentation
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Low Offset Voltage: 25 μV (Maximum)
  • Zero-Drift: 0.03 μV/°C
  • Low Noise: 8.8 nV/√Hz
    0.1-Hz to 10-Hz Noise: 0.25 µVPP
  • Excellent DC Precision:
    PSRR: 142 dB
    CMRR: 146 dB
    Open-Loop Gain: 136 dB
  • Gain Bandwidth: 2 MHz
  • Quiescent Current: 475 μA (Maximum)
  • Wide Supply Range: ±2 V to ±18 V
  • Rail-to-Rail Output:
    Input Includes Negative Rail
  • RFI Filtered Inputs
  • MicroSIZE Packages

2 Applications

  • Bridge Amplifiers
  • Strain Gauges
  • Test Equipment
  • Transducer Applications
  • Temperature Measurement
  • Electronic Scales
  • Medical Instrumentation
  • Resistance Temperature Detectors
  • Precision Active Filters

3 Description

The OPA4188 operational amplifier uses TI proprietary auto-zeroing techniques to provide low offset voltage (25 μV, maximum), and near zero-drift over time and temperature. These miniature, high-precision, low quiescent current amplifiers offer high input impedance and rail-to-rail output swing within
15 mV of the rails, making them ideal for industrial applications. The input common-mode range includes the negative rail. Either single or dual supplies can be used in the range of 4 V to 36 V (±2 V to ±18 V).

The quad version is available in 14-pin SOIC and 14-pin TSSOP packages. All versions are specified for operation from –40°C to +125°C.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
OPA4188 SOIC (14) 8.65 mm × 3.91 mm
TSSOP (14) 5.00 mm × 4.40 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Zero-Drift Architecture Improves Performance

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