SBOS525C August   2011  – June 2016 OPA2188

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: Table of Graphs
    8. 7.8 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 Operating Characteristics
      2. 8.3.2 EMI Rejection
      3. 8.3.3 Phase-Reversal Protection
      4. 8.3.4 Capacitive Load and Stability
      5. 8.3.5 Electrical Overstress
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 High-Side Voltage-to-Current (V-I) Converter
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
    3. 9.3 System Examples
      1. 9.3.1 Discrete INA + Attenuation for ADC With 3.3-V Supply
      2. 9.3.2 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 Device Support
      1. 12.1.1 Development Support
        1. 12.1.1.1 TINA-TI™ (Free Software Download)
        2. 12.1.1.2 DIP Adapter EVM
        3. 12.1.1.3 Universal Op Amp EVM
        4. 12.1.1.4 TI Precision Designs
        5. 12.1.1.5 WEBENCH Filter Designer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resource
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 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)
  • Zerø-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 OPA2188 operational amplifier uses TI proprietary auto-zeroing techniques to provide low offset voltage (25 μV, maximum), and near zero-drift over time and temperature. This miniature, high-precision, low quiescent current amplifier offers high input impedance and rail-to-rail output swing within 15 mV of the rails. 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 OPA2188 device is available in MSOP-8 and SO-8 packages. The device is specified for operation from –40°C to +105°C.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
OPA2188 SOIC (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.

Offset Voltage vs Temperature

OPA2188 pg1_tc_bos525.gif