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Transimpedance amplifier using negative impedance compensation

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posted on 2023-06-08, 06:51 authored by Day-Uei Li, Chia-Ming Tsai
A transimpedance amplifier (TIA) with negative impedance compensation comprises a TIA element and a negative impedance compensator connected to the output terminal of the TIA element. The major components of the negative impedance compensator are a negative impedance element formed by a positive feedback circuit, and a compensation circuit for the parasitic capacitance at the output terminal. The negative impedance compensator changes the equivalent impedance of the output terminal from low to high with respect to the ground, and compensates the parasitic capacitance at the output terminal. Thus, an increase of both bandwidth and voltage gain is achieved.

History

Publication status

  • Published

Pages

14.0

Department affiliated with

  • Engineering and Design Publications

Notes

Corresponding Patent: TWI305976B

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  • No

Legacy Posted Date

2012-02-06

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