OPA357: Op Amp Options with Fast Shutdown

John Ranson

Part Number: OPA357

Tool/software:

I need an op-amp for an application where I need to quickly enable and disable the op amp. I'm hoping for something like the OPA357, but preferably slower. Does TI have any other parts that meets these specs?

Enable/disable/shutdown pin with <1us response time
High impedance output disabled state
Can tolerate large input mismatch during disabled state (One input driven, one input at VSS)
Can operate from a single 5V or 6V supply. (15V would probably be OK too)
Unity Gain Stable
Gain-Bandwidth >10MHz, <250MHz
Rail-to-rail in/out preferred

Best regards,

John

3 months ago

0 John Ranson 3 months ago

Prodigy 175 points

To be clear, by slower, I mean I would like an op amp with lower bandwidth. 50-100MHz unity gain bandwidth is probably the sweet spot for my application.

0 Vikas Jeevannavar 2 months ago in reply to John Ranson

TI__Intellectual 2270 points

Hi John Ranson,

Thanks for reaching out.
Looks like OPA357 is ideal fit for your application. The small signal bandwidth of OPA357 is 250MHz, but the gain bandwidth is 100MHz. You can use the OPA357 in your design unless there is something else that is not met by OPA357.
Please share your schematic or design to provide more inputs on the opamp.

Thanks

Vikas J

Amplifiers

Amplifiers forum

OPA357: Op Amp Options with Fast Shutdown