Schematic diagram of programmable resistor

Programmable Package SG-8018CA(SG7050C) 0.67M~170M

AVX tantalum capacitor low resistance TPSD107K016R0100 original 2011+

Adjustable capacitor Murata genuine original

Shunuo varistor / ESD varistor / product complete / Sunlord first-class agent

Probe current voltage pin 290*3600 needle head diameter is 3.5mm can be too large

Schematic diagram of programmable resistor

The circuit schematic of the composite resistor is shown in the figure, which consists of an input op amp, a D/A converter, an analog switch, an output op amp, and an offset zeroing circuit. The input voltage value applied to one end of the standard resistor is buffer amplified, proportionally adjusted, and fed back to the other end of the standard resistor to control the input current to determine the input resistance value.