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……