Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1994-06-10
1995-05-30
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330261, 330149, 330295, H03F 345
Patent
active
054205387
ABSTRACT:
A linear bipolar junction transistor amplifier. The linear gain is achieved by an offset voltage created by ratioed transistors wherein the ratio is an integer. The ratios are achieved either by connecting equal transistors in parallel or by employing multiple emitters on a single transistor. This results in a linear amplifier which is substantially independent of manufacturing process tolerance variations as well as power supply and temperature variations.
REFERENCES:
patent: 4965528 (1990-10-01), Okanobu
patent: 5006818 (1991-04-01), Koyama
patent: 5079515 (1992-01-01), Tanimoto
MacGregor George
Mullins James B.
Northern Telecom Limited
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