SBOS286D December   2003  – March 2022 OPA1632

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
    5. 6.5 Electrical Characteristics: OPA1632D
    6. 6.6 Electrical Characteristics: OPA1632DGN
    7. 6.7 Typical Characteristics: OPA1632D
    8. 6.8 Typical Characteristics: OPA1632DGN
  7. Detailed Description
    1. 7.1 Overview
      1. 7.1.1 Fully-Differential Amplifiers
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Function
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Output Common-Mode Voltage
        1. 8.1.1.1 Resistor Matching
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 PowerPAD Design Considerations
      2. 10.1.2 Power Dissipation and Thermal Considerations
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Third-Party Products Disclaimer
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Export Control Notice
    8. 11.8 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

Description

The OPA1632 is a fully-differential amplifier (FDA) designed to drive high-performance audio analog-to-digital converters (ADCs) or as a pre-driver for Class-D amplifiers. It delivers superior audio quality, very low noise, large output voltage swing and high current drive. The OPA1632 has an excellent gain bandwidth of 180 MHz and very fast slew rate of 72 V/μs which helps to produce exceptionally low distortion. A very low input voltage noise of 1.25 nV/√Hz further ensures maximum signal-to-noise ratio and dynamic range.

The flexibility of the fully differential architecture allows for easy implementation of a single-ended to fully-differential output conversion. Differential output reduces even-order harmonics and minimizes common-mode noise interference. The OPA1632 provides excellent performance when used to drive high-performance audio ADCs such as the PCM1804. A shutdown feature is included to save power when the device is not being used.

The OPA1632 is characterized for operation from –40°C to +85°C and is available in an SO-8 package and a thermally-enhanced MSOP-8 PowerPAD™ package.

Device Information(1)
PART NUMBERPACKAGEBODY SIZE (NOM)
OPA1632SOIC (8)4.90 mm × 3.91 mm
MSOP-PowerPAD (8)3.00 mm × 3.00 mm
For all available packages, see the orderable addendum at the end of the data sheet.

Application Diagram
THD + Noise vs Frequency