Single Supply Op-Amp Rectifiers

An introduction to single-supply precision op-amp rectifier circuits, their inherent limitations, and a single-supply design that outperforms even its dual-supply counterparts!

Single supply full wave rectifier with wide dynamic range and low distortion to >20kHz

Single supply full wave rectifier with wide dynamic range and low distortion to >20kHz

References and additional reading:

Description Reference
Basic single supply full wave rectifier circuit LT1078 Absolute Value Circuit (Full-Wave Rectifier), Linear Technologies
Improved single supply full wave rectifier Burr-Brown Application Bulletin: Precision Absolute Value Circuits, David Jones & Mark Stitt
High speed (500kHz) full wave rectifier Intersil Application Note 1698, Tamara Schmitz
High speed (2.5MHz) precision rectifier High Speed Comparator Techniques (Application Note 13), Jim Williams

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