INSTRUMENTATION AMPLIFIER WITH CONTROLLED FREQUENCY RESPONSE PARAMETERS Russian patent published in 2014 - IPC H03F3/00 

FIELD: machine building.

SUBSTANCE: instrumentation amplifier with controlled frequency response parameters comprises a signal source, an input differential stage, balancing capacitors, power supply buses, current outputs of the input differential stage, current-stabilising two-terminal elements, a current mirror and an emitter.

EFFECT: high attenuation of the output signal in the low frequency range with a high and sufficiently stable Q factor of the frequency response of the instrumentation amplifier and high voltage gain at quasi-resonance frequency f₀.

3 cl, 10 dwg