ADS4122 used in simultaneous sampling system

user449490

Other Parts Discussed in Thread: ADS4122

i want to use multiple ADS4122 into a multiple channel simultaneous sampling system. But I can't find a pin or a register to synchronize the samples of mulitiple ADS4122. So who can offer a method for this simultaneous sampling and makes multiple ADS4122 work as one multi-channel simultaneous sampling ADC. thanks.

over 7 years ago

0 Neeraj Gill over 7 years ago

TI__Mastermind 20541 points

HI,

I would recommend you use ADC3K family devices. It has similar performance and power consumption it has 2 & 4 channel version available. it also allow multi device synchronization through SYSREF.

Here is the link to the ADC3K family.
www.ti.com/.../high-speed-adc-greater-10msps-adc3k.page

Regards,
Neeraj Gill

0 Frank Huang over 7 years ago in reply to Neeraj Gill

Prodigy 20 points

Dear Neeraj,

We choose ADS4122 because we have them in-stock, we don't want to waste them, pls advice if we can have 4 ADS4122 work synchronously, do you have any experience of doing this?

The 4 independent ADS4122 have a benefit of interleaved sampling, that we could arrange them work in 2-channel, even 1-channel ways to get higher sampling rate.

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ADS4122 used in simultaneous sampling system