• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 409 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

single supply opamp or line driver

Mahendrakumar Reddy Ippagunta
Intellectual 575 points
Other Parts Discussed in Thread: DRV612, DRV632

We have 0.5V RMS audio signal that we need to scale up with 2X gain to feed aux-in of amplifiers. We have 3.3V switching supply and 4.2V linear available on the board. Can anyone help us in selecting the right chip that can do this. Can DRV612 line driver with 2X gain be used? or we need to choose an op-amp? If opamp, what are the suitable opamps from TI that operate with the available single supply of 3.3V switching or 4.2V linear.

 

-Mahendra

  • 0
    TI__Guru**** 189399 points

    Hi, Mehendrakumar,

    DRV612 is certainly a fine choice for this application.

    DRV632 is a newer device, I suggest you look at that device as well. Table 1 in the d/s shows the input and feedback resistors for various gains, one of which is your desired 2V/V.

    -d2