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Detail
Registered OPERATIONAL TRANSCONDUCTANCE AMPLIFIER WITH DC OFFSET ELIMINATION AND LOW MISMATCH
- Inventors
- Young Ho Kim, Park Mun Yang
- Application No.
- 11019765 (2004.12.20)
- Publication No.
- 20050140445 (2005.06.30)
- Registration No.
- 7193466 (2007.03.20)
- Country
- UNITED STATES
- Project Code
- 03MB3700, Next Generation Integrated Handheld Terminal Technology, Cho Kyoung Ik
- Abstract
- Provided is a transconductor capable of eliminating a direct current (DC) offset component of a signal and compensating a mismatch of the signal. The transconductor includes amplifiers of simple circuit structures, and a common mode control DC offset elimination circuit. The transconductor includes a common mode control DC offset elimination circuit unit receiving input/output voltages to stabilize the current supplying and the output DC value, a first amplifier and a second amplifier reducing a mismatch in a transconductor circuit and increasing an output resistance, in order to prevent a signal distortion or a wrong operation of the circuit that is caused by the mismatch signal and unstable DC voltage.
- KSP Keywords
- Common mode control, DC voltage, DC-offset, Direct current(DC), Offset component, Operational transconductance amplifier, common-mode(CM), mode control, output resistance, signal distortion, transconductance amplifier