Hello everyone,
I am attempting to identify the ICs shown below. This small circuit was taken off one of our instruments and the two long leads (CURRENT INPUT 1 & CURRENT INPUT 2) are connected to plates from which current is induced by gas phase ions. The outputs (VOLTAGE OUTPUT 1 and VOLTAGE OUTPUT 2) are digitized by an ADC. I am assuming PIN 1 and PIN 2 are Vcc and Ground, however I'm not sure how to determine which one since there are no discernible markings on the IC itself. This board is typically under ultra-high vacuum (roughly 5x10E-10 torr) if they helps in any manner. How would one go about identifying what these ICs are?
Thank you for your time,
I am attempting to identify the ICs shown below. This small circuit was taken off one of our instruments and the two long leads (CURRENT INPUT 1 & CURRENT INPUT 2) are connected to plates from which current is induced by gas phase ions. The outputs (VOLTAGE OUTPUT 1 and VOLTAGE OUTPUT 2) are digitized by an ADC. I am assuming PIN 1 and PIN 2 are Vcc and Ground, however I'm not sure how to determine which one since there are no discernible markings on the IC itself. This board is typically under ultra-high vacuum (roughly 5x10E-10 torr) if they helps in any manner. How would one go about identifying what these ICs are?
Thank you for your time,