SBOS777 December 2016 OPA2388 , OPA388

PRODUCTION DATA. 

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  6. Specifications
    1. 6.1Absolute Maximum Ratings
    2. 6.2ESD Ratings
    3. 6.3Recommended Operating Conditions
    4. 6.4Thermal Information: OPA388
    5. 6.5Electrical Characteristics: VS = ±1.25 V to ±2.75 V (VS = 2.5 to 5.5 V)
    6. 6.6Typical Characteristics
    7. 6.7Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
      1. 7.3.1Operating Voltage
      2. 7.3.2Input Voltage and Zero-Crossover Functionality
      3. 7.3.3Input Differential Voltage
      4. 7.3.4Internal Offset Correction
      5. 7.3.5EMI Susceptibility and Input Filtering
    4. 7.4Device Functional Modes
  8. Application and Implementation
    1. 8.1Application Information
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
      3. 8.2.3Application Curve
    3. 8.3System Examples
      1. 8.3.1Single Operational Amplifier Bridge Amplifier
      2. 8.3.2Precision, Low-Noise, DAC Buffer
      3. 8.3.3Load Cell Measurement
  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
        1. 11.1.1.1TINA-TI (Free Software Download)
        2. 11.1.1.2TI Precision Designs
    2. 11.2Documentation Support
      1. 11.2.1Related Documentation
    3. 11.3Related Links
    4. 11.4Receiving Notification of Documentation Updates
    5. 11.5Community Resources
    6. 11.6Trademarks
    7. 11.7Electrostatic Discharge Caution
    8. 11.8Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Orderable Information

Features

  • Ultra-Low Offset Voltage: ±0.25 µV
  • Zero-Drift: ±0.005 µV/°C
  • Zero-Crossover: 140-dB CMRR True RRIO
  • Low Noise: 7.0 nV√Hz at 1 kHz
  • No 1/f Noise: 140 nVPP (0.1 Hz to 10 Hz)
  • Fast Settling: 2 µs (1 V to 0.01%)
  • Gain Bandwidth: 10 MHz
  • Single Supply: 2.5 V to 5.5 V
  • Dual Supply: ±1.25 V to ±2.75 V
  • True Rail-to-Rail Input and Output
  • EMI/RFI Filtered Inputs
  • Industry-Standard Packages:
    • Single in SOIC-8, SOT-23-5, and VSSOP-8
    • Dual in SOIC-8 and VSSOP-8
    • Quad in SOIC-14 and TSSOP-14

Applications

  • Bridge Amplifiers
  • Strain Gauges
  • Test Equipment
  • Current Shunt Measurement
  • Thermocouples, Thermopiles
  • Electronic Scales
  • Medical Instrumentation
  • Resistor Thermal Detectors
  • Precision Active Filters

Description

The OPAx388 (OPA388, OPA2388, and OPA4388) series of precision operational amplifiers are ultra-low noise, fast-settling, zero-drift, zero-crossover devices that provide rail-to-rail input and output operation. These features and excellent ac performance, combined with only 0.25 µV of offset and 0.005 µV/°C of drift over temperature, makes the OPAx388 ideal for driving high-precision, analog-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs). This design results in superior performance when driving analog-to-digital converters (ADCs) without degradation of linearity. The OPA388 (single version) is available in the VSSOP-8, SOT23-5, and SOIC-8 packages. The OPA2388 (dual version) is offered in the VSSOP-8 and SO-8 packages. The OPA4388 (quad version) is offered in the TSSOP-14 and SO-14 packages. All versions are specified over the extended industrial temperature range (–40°C to +125°C).

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
OPA388SOIC (8) 4.90 mm × 3.90 mm
SOT-23 (5) 2.90 mm × 1.60 mm
VSSOP (8)3.00 mm × 3.00 mm
OPA2388SOIC (8)4.90 mm × 3.90 mm
VSSOP (8)3.00 mm × 3.00 mm
OPA4388SOIC (14)8.65 mm x 3.90 mm
TSSOP (14)5.00 mm x 4.40 mm
  1. For all available packages, see the package option addendum at the end of the data sheet.

OPA388 in a High-CMRR, Instrumentation Amplifier Application

OPA388 OPA2388 OPA4388 Schem_01_OPA388_SBOS777.gif

OPA388 Allows Precision, Low-Error Measurements

OPA388 OPA2388 OPA4388 C301_SBOS777.png