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INA143: GAIN???

Part Number: INA143

Tool/software:

Subject:
INA143
From:
Jack Frost - Summit Products <summus@summitproducts.com>
Date:
10/1/2024, 11:53 AM
To:
"Featherstone, Chris" <cfeatherstone@ti.com>

This circuit should have a gain of 100 (2 stages) if I'm correct. WHAT AM I DOING WRONG?

The measured voltages at U2 are:

PIN             VOLTS

  1                1mV

  2                0.9mV

  3                2.7mV

  4                2mV

  5                2.71V

  6               2.71V

  7               4.99V

  8               N/C

Regards,

Jack