Video amplifier consisting of OP amplifier LM6361-5

The internal circuit of LM 6361
has good high-density characteristics because it is a base-to-ground circuit composed of high-speed PNP transistors.
The difference between it and the traditional OP amplifier is that its open-loop gain is designed to be relatively low,
about 6adBo. This is because of the generation of differential input transistors. Electroslag feedback is added to the emitter
, so the gain decreases.
    Although its DC characteristics are much worse than those of general OP amplifiers
, it can still be used as a practical device with an offset voltage of 22mV. m. Wang,, input, enter the letter Sf as
white pA. Guard - set, input offset reactance is 1. 9uA f blood. i,, the input resistance is
325koo, so the external resistance of this amplifier should be as small as possible. The resistor
is about 2 kΩ. The resistance of the island is determined based on the required amplification. When the amplification
factor is close to l, a feedback capacitor of several microfarads should be connected in parallel to Rs. Although
this circuit is a high-speed amplifier, it can also be used when the current consumption is smA. ,
Applied under ±5v power supply voltage.