AMC1400: Voltage measurement by using AMC1400

Logesh Padmanabhan

Part Number: AMC1400
Other Parts Discussed in Thread: AMC1411

Tool/software:

Hi,

1. Please let us know how to use AMC1400 for voltage measurement application AC and DC, we need a gain of 8.2.

2. PLease let us know if there are any limitations in the front-end resistor network bias current ( What current is to be maintained in the Front-end resistor network).

For your information As per AMC1411 Icross current is 300uA. Shall we maintain the same current?

1 month ago

0 Alexander Smith 1 month ago

TI__Mastermind 49111 points

Hi Logesh,

Please refer to this document: https://www.ti.com/lit/an/sbaa350a/sbaa350a.pdf?ts=1721053839282&ref_url=https%253A%252F%252Fwww.google.com%252F

and this excel calculator: https://www.ti.com/lit/zip/sbar013

for assistance with voltage measurement with the AMC1400.

The cross current specification in the datasheet is just an example. This current limit can be decided by you depending on how much power you are willing to dissipate in the resistive divider string.

Can you please provide some feedback on what type of application this measurement is for?

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AMC1400: Voltage measurement by using AMC1400