首页>
外国专利>
ADAPTIVE COMMON MODE BIAS FOR DIFFERENTIAL AMPLIFIER INPUT CIRCUITS, CAPABLE OF EXTENDING AN INPUT COMMON MODE RANGE
ADAPTIVE COMMON MODE BIAS FOR DIFFERENTIAL AMPLIFIER INPUT CIRCUITS, CAPABLE OF EXTENDING AN INPUT COMMON MODE RANGE
展开▼
机译:适用于差分放大器输入电路的自适应共模偏置,能够扩展输入共模范围
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE: An adaptive common mode bias for differential amplifier input circuits is provided to improve the DC gain accuracy of a differential amplifier by biasing input devices and current source devices in an ideal position.;CONSTITUTION: A differential signal(100) is received by a common mode detection circuit(102) and a differential amplifier(110). The common mode detection circuit monitors the differential signal for determining a common mode voltage(104) of the differential signal. The common mode voltage passes through a common mode inversion circuit(106) which generates a body voltage(108). The body voltage has an inversion relation with a common mode voltage. A differential amplifier generates an output signal(114). A circuit system(116) is comprised of the common mode detection circuit, the common mode inversion circuit, and the differential amplifier.;COPYRIGHT KIPO 2011
展开▼