Assertion: amplifier's input impedance | /r/HasProperty | low
Facets:
value: unusually
type: DEGREE
value: in some tests
type: TEMPORAL
value: very
type: DEGREE
Source sentences:
text: MOSFET-input operational amplifiers often have protection circuits that effectively short circuit any input differences greater than a small threshold, so the input impedance can appear to be very low in some tests.
text: At differential mode, they behave as common-emitter stages with grounded emitters; so, the input impedances are low.
text: This is because, the input impedance of an amplifier is low, while its output impedance is high.
text: This arrangement is not very common in low-frequency discrete circuits, where it is usually employed for amplifiers that require an unusually low input impedance, for example to act as a preamplifier for moving-coil microphones.
text: Because the input impedance is so low, most signal sources have larger source impedance than the common-base amplifier R in .
text: The common emitter amplifier has a low input impedance and it is an inverting amplifier