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XTR305: Can XTR305 meet this appliaction?

Jimmy WANG

Genius 3025 points

Part Number: XTR305
Other Parts Discussed in Thread: OPA192, INA851

Hi team.

My customer wants to achieve the application. Can XTR305 meet this application?

If not, which device can meet? Thanks

0 Michael Hartshorne 5 months ago

TI__Genius 11665 points

Jimmy,

Can you give us more information here - is there any need for current outputs or is it only voltage to voltage? it appears from what you have shown, you don't necessarily need the unique features of the XTR; you can probably just use an INA. For an INA with differential in/differential out, you can use INA851 (the first and third case). For the second stage, you would really only need a single amplifier such as OPA192.

Regards,
Mike

0 Jimmy WANG 5 months ago in reply to Michael Hartshorne

Genius 3025 points

Hi Michael,

Yes, Ther is AI/AO function from customer design.

Current ability is not too much. pls ignore.

Just meet below voltage convert. you suggestion are good. but pricing compared to XTR305 with INA851 or OPA192 too expensive.

(AI) +-10V to +-3V

(AI) +-10V to 3V

(AO)3V to +-10V

How to be setting the voltage convert.?

0 Raymond Zhang1 5 months ago in reply to Jimmy WANG

TI__Guru 50491 points

Hi Jimmy,

Jimmy WANG said:
(AI) +-10V to 3V

Here is one of the example. Please specify the frequency in the application.

OPA186 20Vpp to 3Vpp 01122024.TSC

Jimmy WANG said:
(AI) +-10V to +-3V

OPA186 20Vpp to 3Vpp option1 01112024.TSC

Jimmy WANG said:
(AO)3V to +-10V

OPA186 3Vpp to 10Vpp 01112024.TSC

Jimmy WANG said:
(AI) +-10V to 3V

If you want to keep the same phase, you would need to use difference amplifier.

OPA186 20Vpp to 3Vpp difference amplifier 01112024.TSC

If you have other questions, please let us know.

Best,

Raymond