Amplifiers – With semiconductor amplifying device – Including signal feedback means
Patent
1996-11-27
1998-10-20
Mottola, Steven
Amplifiers
With semiconductor amplifying device
Including signal feedback means
330294, H03F 114
Patent
active
058252509
ABSTRACT:
An integrated operational amplifier with adjustable frequency compensation having a transconductance input stage and an amplifier output stage connected serially together between an input terminal and an output terminal of the operational amplifier. For the purpose of frequency compensation, moreover, a compensation block is connected across the input and the output of the output stage. The compensation block uses a plurality of charge storage elements connected in parallel together and in series with switch block which selects a sub-plurality of said charge storage elements in response to an external signal of the amplifier. The compensation block thereby provides an overall effective capacitance for frequency compensation.
REFERENCES:
patent: 4500846 (1985-02-01), Lewyn et al.
patent: 5140279 (1992-08-01), Scott
patent: 5363055 (1994-11-01), Ribner
IEEE Transactions on Circuits and Systems, vol. 38, No. 10, Oct. 1991, NY, U.S., pp. 1212-1217, XP000278320, D. J. Allstot W.C. Black.: "A Substance-Referenced Data-Conversion Archtitcture.".
Bietti Ivan
Castello Rinaldo
Clerici Giancarlo
Tomasini Luciano
Mobley Michele A.
Mottola Steven
SGS--Thomson Microelectronics S.r.l.
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