如何获得一个数字控制精度性能电位器(DCP)

intersil公司的Get Precision Performance from a Digitally Controlled Potentiometer (DCP)

Get Precision Performance from a Digitally
Controlled Potentiometer (DCP)
Application Note June 5, 2009 AN1425.1



Typical resistance accuracy of the polysilicon DCP is in VIN VCC
±20% range. However, the relative accuracy or matching of
the resistive elements in the particular resistor array is
excellent, and usually is in range of ±1% or better. Thus, t