The amplifier doesn't have GND pin, only V- and V+ which is your connection for high and low potentials. The part's performance is specified to +/-5V and +/-15V or that is 10V and 30V while your Abs Max is up to 36V.
I wish to do a noise simulation on a current source controller using the LT1167 instrumentation amplifier and the AD8672 low noise op-amp. what is the correct approach for noise simulation on a indirect feedback circuit like this? In LTspice…
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The suggested replacement part for the OP227 is AD8672-EP. This part is a Precision, Low Noise, Low Input Bias Current Op Amp and also specified over -55 to 125'C temperature range. However, this is available in 8-lead SOIC_N only.