AMC1305M25-Q1: gain error smaller than 0.2%

CHENGCHENG YAO

Part Number: AMC1305M25-Q1
Other Parts Discussed in Thread: AMC1305M25, AMC1304M25

Hi,

I am looking for a isolated dc voltage sensing solution with max gain error to be less than 0.2%. One possible chip is AMC1305M25. Function-wise it works fine for me but the maximum gain error does not meet my requirement.

Thanks,

Chengcheng

over 7 years ago

0 Tom Hendrick over 7 years ago

TI__Guru**** 174266 points

Hi Chengcheng,

Take a look at the AMC1304M25.

0 CHENGCHENG YAO over 7 years ago in reply to Tom Hendrick

Intellectual 300 points

Hi Tom,

Thanks for the chip. AMC1304M25 has a gain error of –0.02% (typical) and +- 0.3% (max). Do we have a option with +-0.15 % (max)?

Thanks,

Chengcheng

0 Tom Hendrick over 7 years ago in reply to CHENGCHENG YAO

TI__Guru**** 174266 points

Hi Chengcheng,

The 50mV version of the AMC1304 has the 0.02% typical and +/-0.3% max spec. If you go down to page 10, the 250mV version is showing 0.05% typical and +/-0.2% max. What sort of application are you working on? Are you doing any sort of initial calibration?

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AMC1305M25-Q1: gain error smaller than 0.2%