CIRCUIT060009

Half-wave rectifier circuit

CIRCUIT060009

Downloads

Overview

The precision half-wave rectifier inverts and transfers only the negative-half input of a time varying input signal (preferably sinusoidal) to its output. By appropriately selecting the feedback resistor values, different gains can be achieved. Precision half-wave rectifiers are commonly used with other op amp circuits such as a peak-detector or bandwidth limited non-inverting amplifier to produce a DC output voltage. This configuration has been designed to work for sinusoidal input signals between 0.2mVpp and 4Vpp at frequencies up to 50kHz.
Features
  • 5V Split supply 
  • Input: +/-0.2mVpp to +/-4Vpp 
  • Output: 0.1V to 2V

Downloads

Design tool

Simulation for Half-Wave Rectifier SBOC509.ZIP (363KB)

Release date: 02-May-2018
General-purpose op amps
OPA322 20MHz Low-Noise 1.8V RRIO CMOS Operational Amplifier With Shutdown
MSP430 microcontrollers
MSP430FR2310 16 MHz integrated analog microcontroller with 2 KB FRAM, OpAmp, TIA, comparator with DAC, 10-bit ADC MSP430FR2311 16-MHz integrated analog microcontroller with 3.75-KB FRAM, OpAmp, TIA, comparator w/ DAC, 10-bit AD MSP430FR2353 24 MHz 105 C integrated analog microcontroller with 16 KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit AD MSP430FR2355 24-MHz 105-C integrated analog microcontroller with 32-KB FRAM, Op-Amps/PGAs, 12-bit DACs, 12-bit AD
Precision op amps (Vos<1mV)
OPA2325 Dual precision, wide bandwidth, low noise, low power ADC driving op amp with RRIO and zero-crossover

Technical documentation

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Type Title Date
* Application note Half-wave rectifier circuit with MSP430 smart analog combo (Rev. A) Mar. 06, 2020
* Application note Half-wave rectifier circuit (Rev. A) Feb. 01, 2019
Application note How to Use the Smart Analog Combo in MSP430™ MCUs (Rev. A) Oct. 24, 2019
E-book Analog Engineer’s Circuit Cookbook: Amplifiers (Rev. A) Feb. 18, 2019

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