Ask a question about ADA4945-1 specification

Hi Jerry,

In normal operation, an op amp has the feedback loop connected; therefore the differential input voltage is held at zero volts (neglecting the offset voltage). However under certain conditions, such as power-up, then the output can only slew to within a few millivolts of ground, the op amp may be subjected to a differential input voltage which is not zero. Certain input structures require limiting of differential input voltage to prevent damage. These op amps will generally have internal back-to-back diodes across the inputs. This will not always show up in the simplified schematics of the amps. It will show up, however, as a differential input voltage specification.

Regarding the ADA4940 it should be both ways, it was just written as absolute there, it always depends on your reference.

Regards,

Goz