ADS7953: ads7953

eric zeng

Prodigy 130 points

Part Number: ADS7953
Other Parts Discussed in Thread: OPA192

How much is the Rd of the analog switch of the ads7953?

over 6 years ago

0 Cynthia over 6 years ago

TI__Mastermind 25030 points

Hello
In the application section, there are different scenarios for input signal impedance, this might help; what is the concern for the Rd of the mux?
When connected to the mux, Rd can be estimated to be 200ohms

Regards
Cynthia

0 eric zeng over 6 years ago in reply to Cynthia

Prodigy 130 points

Thank you for your reply.

There is no description of Mux's Rd in the datasheet. In my application, an LPF is connected behind MXO, so Mux's Rd is what I want to know.

0 Cynthia over 6 years ago in reply to eric zeng

TI__Mastermind 25030 points

This is not explicitly stated in the datasheet, this is a shortcoming
Within the Application section 9 of the datasheet, specifically 9.2.2 OPA192 Buffered Multiplexer output might prove helpful for your application
Regards, Cynthia

Data converters

Data converters forum

ADS7953: ads7953