SBOS286C December 2003  – October 2015 OPA1632

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
    5. 6.5Electrical Characteristics
    6. 6.6Typical Characteristics
  7. Detailed Description
    1. 7.1Overview
      1. 7.1.1Fully-Differential Amplifiers
    2. 7.2Functional Block Diagram
    3. 7.3Feature Description
    4. 7.4Device Functional Modes
      1. 7.4.1Shutdown Function
  8. Application and Implementation
    1. 8.1Application Information
      1. 8.1.1Output Common-Mode Voltage
        1. 8.1.1.1Resistor Matching
    2. 8.2Typical Application
      1. 8.2.1Design Requirements
      2. 8.2.2Detailed Design Procedure
      3. 8.2.3Application Curves
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1Layout Guidelines
      1. 10.1.1PowerPAD Design Considerations
      2. 10.1.2Power Dissipation And Thermal Considerations
    2. 10.2Layout Example
  11. 11Device and Documentation Support
    1. 11.1Documentation Support
      1. 11.1.1Related Documentation
    2. 11.2Community Resources
    3. 11.3Trademarks
    4. 11.4Electrostatic Discharge Caution
    5. 11.5Export Control Notice
  12. 12Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Orderable Information

1 Features

  • Superior Sound Quality
  • Ultra Low Distortion: 0.000022%
  • Low Noise: 1.3 nV/√Hz
  • High Speed:
    • Slew Rate: 50 V/μs
    • Gain Bandwidth: 180 MHz
  • Fully Differential Architecture:
    • Balanced Input and Output Converts Single-Ended Input to Balanced Differential Output
  • Wide Supply Range: ±2.5 V to ±16 V
  • Shutdown to Conserve Power

2 Applications

  • Audio ADC Driver
  • Balanced Line Driver
  • Balanced Receiver
  • Active Filter
  • Preamplifier

3 Description

The OPA1632 is a fully-differential amplifier designed for driving high-performance audio analog-to-digital converters (ADCs). It provides the highest audio quality, with very low noise and output drive characteristics optimized for this application. The OPA1632’s excellent gain bandwidth of 180 MHz and very fast slew rate of 50 V/μs produce exceptionally low distortion. Very low input noise of 1.3 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 also enhances the flexibility of this amplifier.

The OPA1632 is available in an SO-8 package and a thermally-enhanced MSOP-8 PowerPAD™ package.

Device Information(1)

PART NUMBERPACKAGEBODY SIZE (NOM)
OPA1632SOIC (8)6.00 mm × 4.90 mm
MSOP-PowerPAD (8)5.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Application Diagram

OPA1632 frontpage1_bos286.gif

THD + Noise vs Frequency

OPA1632 frontpage2_sbos286.gif