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THS7373: 1:4 VGA AMP

Part Number: THS7373
Other Parts Discussed in Thread: OPA3693

Hi Sirs,

Sorry to bother you.

We are survey VGA AMP such like AD8075.

Our application are one VGA source to four VGA port.

We would like confirm so could we parallel four THS7373 on our application? because AD8075 datasheet have show this application but TI didn't.

Thanks!!

  • Hello Shu-Cheng,

    Are you are referring to the the "Triple Video Multiplexer" section in the AD8075 datasheet? This application seems to be using multiple sources and choosing between them using the disables of each channel. If this is the case, the THS7373 does not support this functionality as its disable does not put the device into high impedance like the AD8075. TI does offer the OPA3693 which offers similar functionality as the AD8075 and does include a multiplexing application circuit on its datasheet. 

    If you are trying to drive four THS7373 parts from one source with different output ports for each, there should be no issue using this part. Note that you will need to account for the parallel combination of the input resistor used for each amplifier. 

    Best,

    Hasan Babiker