JSSC 2007第10期Analog Circuits0.35μm CMOSBandgap Reference

A 1.4 V Supply CMOS Fractional

一种输出硅带隙电压分数的CMOS带隙基准电路，简化了内部运算放大器设计。

1.4V电源, 858mV输出, 温度系数1.28mV(-20°C至100°C), 功耗162μW, 面积1.2mm²

带隙基准分数输出CMOS低功耗温度稳定性

▸输出带隙电压分数

▸通过单位增益缓冲器简化运算放大器设计

▸驱动基板晶体管基极电压至二极管压降分数

Abstract

This paper describes a bandgap reference that out- puts a fraction of the silicon bandgap voltage. To simplify the design of an internal operational ampliﬁer, the reference drives the base voltages on substrate transistors through unity-gain buffers to a fraction of a diode drop. With a 1.4 V supply, the reference produces an output of about 858 mV , which varies by 1.28 mV from 20 C to 100 C. It dissipates 162 W and occupies 1.2 mm/50in 0.35 m CMOS.