DAC and Op Amp Generate Variable Negative Control Voltage


Posted on Aug 25, 2012

This design idea describes a simple circuit to generate a programmable negative control voltage. It takes the output of a single supply digital-to-analog converter (DAC) and produces a variable negative voltage. The DAC output from 0V to +2.5V is converted to 0V to -5V at the output. These early DACs (such as the MX7837/MX7847 and MAX523) require both a positive and a negative supply rail to accommodate their negative output.






Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Inverter as high voltage low current source
Scr Circuit With Self-Interrupting Load
555 Based Alarm Circuit
8W Fluorescent Lamp Inverter circuit
AD9284 default mode problem
converter lhc4 6 8ka 08v
I2C control interface includes RGB LED Driver circuit
5V to 2.5V voltage regulator circuit



Top