TIPD185

AC Coupled, Single-Supply, Inverting and Non-inverting Amplifier Reference Design

TIPD185

Design files

Overview

This design amplifies an ac signal, and shifts the output signal so that it is centered at one half the power supply voltage.  Note that the input signal has zero dc offset so it swings above and below ground.  The key benefit of this circuit is that it accepts signals which swing below ground even though the amplifier does not have a negative power supply.

Features
  • AC Coupled single supply amplifier
  • Bandpass frequency response
  • Ground referenced ac signal input
  • Mid supply shifted ac signal out
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDCA72.ZIP (651 K)

Detailed schematic diagram for design layout and components

TIDREI7.PDF (169 K)

Detailed schematic diagram for design layout and components

TIDREI8.PDF (197 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

Products

Includes TI products in the design and potential alternatives.

Precision op amps (Vos<1mV)

OPA376Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* User guide AC-Coupled Single-Supply Inverting and Noninverting Amplifier Reference Design Mar. 26, 2015

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