Other Parts Discussed in Thread: LMV931-N, LMV341
1. What is the maximum value of the bias current and offset current? There are only typical values (15nA and 13nA) in the manual, and there is no maximum.
2. Does the input pin have an overvoltage protected diode?
Pictures R1 and R28 are 100Ω precision resistors that convert a 4 to 20 mA signal into a voltage signal.
In order to minimize the influence of the precision resistance acquisition current signal, R3 and R5 are modified to 1MΩ, and the LMV612 bias current and offset current affect the signal accuracy.