发明名称 |
Tunable operational transcondunctance amplifier having high linearity |
摘要 |
An amplifier capable of being tuned to provide linear gain over a selected input signal range is disclosed herein. The amplifier includes an input stage for receiving an input signal. The amplifier further includes a tuning circuit, connected between the input stage and an amplifier output stage, for controlling gain of the amplifier by adjusting a tuning current supplied to the amplifier output stage. The tuning circuit may be realized with a differential transistor pair connected to a pair of transistors within the output stage. In a preferred implementation the input and output stages are arranged in a folded-cascode configuration so as to improve the output impedance and input common-mode signal range of the amplifier.
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申请公布号 |
US5465072(A) |
申请公布日期 |
1995.11.07 |
申请号 |
US19940286526 |
申请日期 |
1994.08.05 |
申请人 |
LINEAR TECHNOLOGY CORPORATION |
发明人 |
ATARODI, MOJTABA |
分类号 |
H03F3/30;H03F3/45;H03G1/00;(IPC1-7):H03G3/30 |
主分类号 |
H03F3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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