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A Precision Low-TC Wide-Range CMOS Current Reference
一种可编程温度补偿CMOS电流基准，实现低温度系数和宽范围电流输出。
最大温度系数132ppm/°C(0-80°C), 精度0.02%, 线性调整率1%/V(2.3-3.3V), 电流范围16μA-53μA
CMOS电流基准温度补偿可编程浮栅晶体管低温度系数
▸利用多晶硅电阻负温度系数与MOS管欧姆区正温度系数抵消实现一阶温度补偿
▸采用浮栅晶体管实现电流基准的可编程性
▸温度补偿与基准值无关，支持宽范围电流输出
Abstract
This paper describes a programmable tempera-
ture-compensated CMOS current reference. The proposed circuit
achieves a first-order temperature compensation by canceling the
negative temperature coefficient (TC) of an on-chip poly resistor
with the positive TC of a MOS transistor operating in the ohmic
region. Programmability of the current reference is enabled with
the use of floating-gate transistors, thus allowing arbitrary current
values to be set accurately. The temperature compensation is inde-