LMP92064: sampling rate in datasheet

FRANK1

Expert 8355 points

Part Number: LMP92064

Hi Team,

Sampling rate Conversion Rate: 125 kSps (Minimum) in the datasheet.

What is the Maximum, Can it handle 1000ksps.

Thanks.

over 4 years ago

0 kai klaas69 over 4 years ago

Guru 140200 points

Hi Frank,

remember that the input channel bandwidth is only 70kHz (current) and 100kHz (voltage).

Kai

0 FRANK1 over 4 years ago in reply to kai klaas69

TI__Expert 8355 points

Hi Kai,

We are talking about sampling rate of LMP92064.

Data sheet says minimum is 125KSps, what is maximum?

SPI bus is 20Mhz. I presume it should be 1Msps Max.

Please confirm it

We are not talking about Channel bandwidth.

Thanks.

+1 Javier Contreras4 over 4 years ago in reply to FRANK1

TI__Mastermind 31190 points

Hello Frank,

The LMP92064 has a fixed sampling rate internal that is approximately 125KSps. The sampling rate should a little higher to cover any issues so that the sampling rate will not be below 125KSpS.

I believe that Kai mentioned the bandwidth due to the fact that even if you sampled faster the analog bandwidth would dominate. So even if you sampled faster the bandwidth of the analog would dominate your signals.

+1 kai klaas69 over 4 years ago in reply to Javier Contreras4

Guru 140200 points

Yes, Javier, that was what I wanted to say. Thank you

Kai

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LMP92064: sampling rate in datasheet