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INA214-Q1: Maximum capacitor load value to used

Part Number: INA214-Q1
Other Parts Discussed in Thread: INA214

Hi Team,

My customer have a question in here.

Because our datasheet show the maximum capacitive load is 1nF

If they want to use more bigger one high to  the 10nF  in here , the INA214 will have any side effect ?

Then Could this spec can use more higher in here ? If yes , how much is it limited ?

Please share some idea for us. Thanks!


  • Eddie,

    Like any operational amplifier, exposure to direct capacitive load erodes the phase margin of the device and leads to instability. Attempting to drive more than 1nF of capacitance directly from the load will most likely lead to sustained oscillations on the output, i.e, the device will become unstable. If the customer wishes to drive more than this amount, they can attempt to isolate the output stage of the INA214 from the capacitor with a decently sized resistor, like 100Ω or greater. This resistance effectively isolates the output stage and ensures the system remains stable when driving larger capacitive loads.