ADS42LB69EVM: Benchmarks for ADS42LB69 chip

Timoteo Garcia Bertoa

Part Number: ADS42LB69EVM
Other Parts Discussed in Thread: ADS42LB69

Hello,

Are there tests done for the ADS42LB69EVM board, so that I can see the performance of ADS42LB69 compared to the specifications determined in the datasheets? I'm particularly interested in channel isolation and distortion.

Thanks in advance,

Timoteo

over 8 years ago

0 jim s over 8 years ago

TI__Guru* 91947 points

Timoteo,

We are looking into this.

Regards,

Jim

0 jim s over 8 years ago in reply to jim s

TI__Guru* 91947 points

Timoteo,

Test plots are attached. We did see some coupling of LVDS outputs (the ones closest to the analog inputs) to the analog inputs resulting in degraded noise. This can be seen in the “normal” vs “low” plots, where normal and low refer to LVDS output swing. This is one area of the EVM that we made improvements but didn’t completely eliminate.

Regards,

Jim

Cross talk.zip

0 Timoteo Garcia Bertoa over 8 years ago in reply to jim s

Prodigy 240 points

Thanks, that's what we were looking for.

Regards,
Timoteo

0 Timoteo Garcia Bertoa over 8 years ago in reply to jim s

Prodigy 240 points

Hi again, could you provide as well isolation tests?
Regards.
Timoteo

0 jim s over 8 years ago in reply to Timoteo Garcia Bertoa

TI__Guru* 91947 points

Timoteo,

The only data available was what we sent to you. There is an ADS42LB69EVM you can order to allow you to do this testing on your own.

Regards,

Jim

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ADS42LB69EVM: Benchmarks for ADS42LB69 chip