Hi, TI Support Team
The customer is currently reviewing the production of PRA (Power Relay Assembly).
I have a question during product review using ADS131B04-Q1EVM, so I would like to contact you as follows.
[Part Specification Question]
1) Measurement environment: ADS131B04-Q1EVM
2) Measurement configuration and result: voltage sensing environment assuming reverse voltage (abnormal condition)
ⓐ Connect 0V to AINxP, apply –0.45V voltage to AINxN: Measure voltage normally
ⓑ Connect 0V to AINxP, apply a voltage lower than –0.55V to AINxN: Increase in voltage error
① What is the factor that increases the error in the above measurement result?
② What is the negative voltage measurement range?
③ What are the possible problems when a negative voltage exceeding the component specifications is applied?
The contents below are reference contents of the datasheet.
[6.1 Absolute Maximum Ratings]
[6.3 Recommened Operating Conditions]
Please reply to your inquiry.