文件名称：参考电压电路
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更新时间：2015-10-27 04:02:16
Voltage Reference Circuits
Form a temperature-insensitivity reference Operate at low voltages Are robust to process fluctuations Exhibit low electrical current consumption Can be integrated with standard CMOS technologies Allow flexible voltage adjustment The required temperature dependence assumes one of three forms: PTAT: proportional to absolute temperature Constant-GM behavior: the transconductance of certain transistors remains constant Temperature independent Two design problems: Supply-independent biasing Definition of the temperature variation