Operational amplifier

Amplifiers – With semiconductor amplifying device – Including differential amplifier

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330253, H03F 345

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active

044319738

ABSTRACT:
An operational amplifier comprising a differential circuit, an output amplifier having an input terminal connected to the output terminal of the differential circuit, a phase compensating circuit, including an inverting amplifier having an input terminal connected to the output terminal of the differential circuit, and a phase compensating capacitor connected between the output terminal of the inverting amplifier and the output terminal of the differential circuit. The signal delay time of the inverting amplifier is shorter than that of the output amplifier.

REFERENCES:
patent: 4034306 (1977-07-01), Barber et al.
Russell et al. "How the bi Fet Process Benefits Linear Circuits" Electronics Jun. 8, 1978, vol. 51, No. 12, p. 113.
"Silicon Process Shrinks OP AMP To Fit Onto Digital Chips" Electronic Jun. 8, 1978, vol. 51, No. 12, p. 69.
Tsividis et al., "A Process Insensitive NMOS Operation Amplifier" 1979 IEEE Inter. S-S Circuit Conference, p. 188.
Hoslicka "Dynamic Amplifiers in CMOS Technology" Electronics Letters Dec. 6, 1979, vol. 15, No. 25, pp. 819-820.

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