Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1990-12-03
1992-05-26
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330 85, 330260, 330294, H03F 134
Patent
active
051172003
ABSTRACT:
A wide bandwidth transconductance amplifier utilizing internal feedback is stabilized over a wide range of output currents. A compensation driver circuit senses the output current in the amplifier and feeds it back through a compensation capacitor. This keeps the bandwidth of the amplifier constant and optimally stabilized over a 16 to 1 range in output current. This compensation scheme eliminates compensation compromises that can limit the useful dynamic range of transconductnce amplifiers while offering a wide bandwidth low distortion transconductance with high output impedance over frequency.
REFERENCES:
patent: 4213098 (1980-07-01), Tsividis
patent: 4371843 (1983-02-01), Fang et al.
patent: 4774478 (1988-09-01), Taylor
Crystal Semiconductor Corporation
Mullins James B.
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