Control of input bias current modulation in amplifiers

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United States of America Patent

PATENT NO 11722104
APP PUB NO 20230060318A1
SERIAL NO

17462868

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Abstract

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Examples of amplifiers use current-replication transistors and a separation circuit coupled to such transistors to separate error current components from other current components in a pre-driver of an amplifier. In response to driving the current-replication transistors with the separated error current components, replica base current components that approximate error-modulation components of the pre-driver base currents are generated. Replica-current subtraction circuitry coupled to the current-replication transistors then subtract the replica base current components from the pre-driver base currents, affecting cancellation of the error-modulation components of the pre-driver base currents.

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Patent Owner(s)

  • TEXAS INSTRUMENTS INCORPORATED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Archer, Tyler James Tucson, US 2 0
Damitio, Paul Gerard Tucson, US 1 0
Halbert, Joel Martin Tucson, US 10 4
Vasan, Bharath Karthik Tucson, US 9 2

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