SBOSA95F May   2022  – October 2024 OPA2863A , OPA863A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information OPA863A
    5. 6.5  Thermal Information OPA2863A
    6. 6.6  Electrical Characteristics VS = ±5 V
    7. 6.7  Electrical Characteristics VS = 3 V
    8. 6.8  Typical Characteristics: VS = ±5 V
    9. 6.9  Typical Characteristics: VS = 3 V
    10. 6.10 Typical Characteristics: VS = 3 V to 10 V
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Input Stage
      2. 7.3.2 Output Stage
        1. 7.3.2.1 Overload Power Limit
      3. 7.3.3 ESD Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-Down Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Active Filters
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Low-Power SAR ADC Driver and Reference Buffer
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

3 Description

The OPA863A and OPA2863A devices (OPAx863A) are low-power, unity-gain stable, rail-to-rail input and output, voltage-feedback operational amplifiers. These devices are trimmed in package to offer high-precision performance with a maximum input offset voltage of 95μV and offset drift of 1.2μV/°C for high accuracy measurements over temperature.

Consuming only 800µA per channel, the OPAx863A offer a gain-bandwidth product of 50MHz, slew rate of 100V/µs, and a voltage noise density of 6.3nV/√Hz. The rail-to-rail input stage with 2.7V supply operation is useful in portable, battery-powered applications. The rail-to-rail input stage is well matched for gain-bandwidth product and noise across the full input common-mode voltage range, enabling excellent performance with wide-input dynamic range.

The OPAx863A include overload power limiting to limit the increase in IQ with saturated outputs, thereby preventing excessive power dissipation in power-conscious, battery-operated systems. The output stage is short-circuit protected, making these devices conducive to ruggedized environments.

Device Information
PART NUMBER(1) CHANNEL COUNT PACKAGE(2)
OPA863A Single DBV (SOT-23, 5)
OPA2863A Dual D (SOIC, 8)
DGK (VSSOP, 8)(3)
DSN (USON, 10)
(1) See Section 4.
(2) For more information, see Section 11.
(3) Preview information (not Production Data).


OPA863A OPA2863A OPAx863A as a Precision SAR ADC Input DriverOPAx863A as a Precision SAR ADC Input Driver
OPA863A OPA2863A Precision Performance With Low Input-Offset-Voltage DriftPrecision Performance With Low Input-Offset-Voltage Drift