Abstract: 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. Maxim > App Notes > A/D and D/A CONVERSION/SAMPLING CIRCUITS AMPLIFIER AND COMPARATOR CIRCUITS SIGNAL GENERATION CIRCUITS Keywords: DACs, single supply DAC, variable negative control voltage, programmable negative voltage, May 24, 2002 positive to negative voltage translator, digital analog converter, digital to analog converters APPLICATION NOTE 1074 DAC and Op Amp Generate Variable Negative Control Voltage Abstract: 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. Early digital-to-analog converters (DACs) were designed with standard R-2R ladders, a……