SBOA367B December   2019  – June 2022 TLV9001 , TLV9002 , TLV9004 , TLV9051 , TLV9052 , TLV9054 , TLV9061 , TLV9062 , TLV9064

 

  1.   Designing for TLV90xxS operational amplifiers with shutdown
  2.   Trademarks
  3. 1 Introduction
  4. 2 Shutdown Specifications
  5. 3  SHDN Pin Limits and Connections
  6. 4 Output Behavior During Enable and Shutdown
  7. 5 Enable Time and Shutdown Time Factors
    1. 5.1 Quiescent Current
    2. 5.2 Temperature
    3. 5.3 Load
    4. 5.4 Feedback Path
  8. 6 Impact on Commonly Used Circuit Configurations
    1. 6.1 Inverting Amplifier Circuit
    2.     14
    3. 6.2 Non-Inverting Amplifier Circuit
    4.     16
    5. 6.3 Buffer Circuit
    6.     18
  9. 7 Advanced Circuit Functionality Using Amplifiers With Shutdown
  10. 8 Conclusion
  11. 9 References
  12. 10Revision History

3 SHDN Pin Limits and Connections

The maximum input voltage that can be safely applied to the SHDN pin is given in the “Absolute Maximum Ratings” section of the data sheet under the "Signal input pins" row. Care must be taken not to exceed this limit to avoid damage to the part. For the TLV90xxS devices, the absolute maximum voltage rating of the shutdown pin is 500 mV above V+ and the minimum voltage is 500 mV below V–. The SHDN pin should be tied to V+ if it is unused. Some TI amplifiers with shutdown capability have an internal pull-up resistor from the SHDN pin to VCC, which allows the SHDN pin to be left unconnected. However, this should only be done if it is mentioned as a valid setup in the data sheet.