发明名称 |
Buffer operational amplifier with self-offset compensator and embedded segmented DAC for improved linearity LCD driver |
摘要 |
A driver utilizes selective biasing of the terminal of an operational amplifier to reduce offset in the operational amplifier output. Each operational amplifier input includes a differential input pair of transistors including a NMOS transistor and PMOS transistor. At low and high ends of the input voltage range these transistors are selectively and individually coupled to either a standard input or biased to be on so as to contribute offset for offset compensation. The transistors are biased in a conventional manner for input voltages between the low and high ends of the voltage range. |
申请公布号 |
US8476971(B2) |
申请公布日期 |
2013.07.02 |
申请号 |
US20100889492 |
申请日期 |
2010.09.24 |
申请人 |
PENG YUNG-CHOW;CHOU WEN-SHEN;CHANG CHING-HO;CHEN WAN-TE;TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD. |
发明人 |
PENG YUNG-CHOW;CHOU WEN-SHEN;CHANG CHING-HO;CHEN WAN-TE |
分类号 |
G06G7/12 |
主分类号 |
G06G7/12 |
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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