SBOS552A March   2011  – May 2026 OPA361-Q1

PRODUCTION DATA  

  1.   1
  2. 1Features
  3. 2Description
  4. 3Pin Configuration
  5. 4Specifications
    1. 4.1 Absolute Maximum Ratings
    2. 4.2 Electrical Characteristics: VS = +2.5V to +3.3V
    3. 4.3 Typical Characteristics: VS = 2.8V
  6. 5Application and Implementation
    1. 5.1 Application Information
      1. 5.1.1 Operating Voltage
      2. 5.1.2 Input Voltage
      3. 5.1.3 Input Overvoltage Protection
      4. 5.1.4 Enable/Shutdown
      5. 5.1.5 Internal 2-Pole Filter
        1. 5.1.5.1 Video Performance
      6. 5.1.6 Internal Level Shift
        1. 5.1.6.1 Output Swing Capability
        2. 5.1.6.2 TV-Detect Function
  7. 6Device and Documentation Support
    1. 6.1 Receiving Notification of Documentation Updates
    2. 6.2 Support Resources
    3. 6.3 Trademarks
    4. 6.4 Electrostatic Discharge Caution
    5. 6.5 Glossary
  8. 7Revision History
  9. 8Mechanical, Packaging, and Orderable Information

5.1.4 Enable/Shutdown

The OPA361-Q1 has a shutdown feature that disables the output and reduces the quiescent current to less than 1.5µA. This feature is especially useful for portable video applications, where the device is infrequently connected to a television (TV) or other video device.

The Enable logic input voltage is referenced to the OPA361-Q1 GND pin. A logic level HIGH applied to the enable pin enables the op amp. The logic levels are compatible with 1.8V CMOS logic levels. A valid logic HIGH is defined as > 1.3V above GND. A valid logic LOW is defined as < 0.35V above GND. If the Enable pin is not connected, internal pull-up circuitry will enable the amplifier.

When disabling the OPA361-Q1, internal circuitry also disconnects the internal gain setting feedback. This feature is in support of the TV-detection function. See the TV-Detect Function section for more detailed information.