Other Parts Discussed in Thread: PGA855,
Tool/software:
T05093738
Hi.
I recently received a defective part related to my purchase.
Description of the situation
1.
VS+ :+12V
Vs- : -5V
LVDD : + 5V
LVSS : -5V(VS랑 SMPS)
Gain : 1V/V
After Vin-, Vin+: Battery 1V connection, the input was measured as 0V,
Experiment with current limiting power (set of 1 volt, current 0.5A)
It has been determined to be an input current of 0.5 A CC.
2.
VS+ :+12V
Vs- : -12V (change -5V -> -12V)
LVDD : + 5V
LVSS : -5V(VS랑 SMPS)
Gain : 1V/V
Vin -, Vin + : Same as experiment 1
The conclusion is that the input terminal current is eating more than 0.5A.
Input Vin+, Vin- Not a short circuit when measuring resistance
It was not a short circuit when measuring Vin+ and Vin-resistance compared to GND.
In conclusion, it is judged that there is a problem on the PGA855 input terminal.
