CIRCUIT060049

AC coupled non-inverting amplifier circuit

CIRCUIT060049

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Overview

This circuit 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
  • Input: Vi = -240 mV to 240 mV
  • Output: Vo = 0.1 V to 4.9 V
  • Supply:
    • Vcc = 5 V
    • Vee = 0 V
    • Vref = 5 V
  • Lower cutoff frequency: 16 Hz
  • Upper cutoff frequency: ≥ 1 MHz
  • AC gain: 10 V/V

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Downloads

Design tool

Simulation for AC Coupled (HPF) Non-Inverting Amplifier SBOC505.ZIP (400KB)

Supported products & hardware

Supported products & hardware

General-purpose op amps
TLV9062 Dual, 5.5-V, 10-MHz operational amplifier
Precision op amps (Vos<1mV)
OPA192 High-Voltage, Rail-to-Rail Input/Output, 5µV, 0.2µV/˚C, Precision Operational Amplifier

Technical documentation

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Type Title Date
* Circuit design AC coupled (HPF) non-inverting amplifier circuit (Rev. A) Feb. 01, 2019
Application note AN-31 Amplifier Circuit Collection (Rev. D) Oct. 21, 2020
Application note Basic Introduction to Filters - Active, Passive, and Switched-Cap (Rev. A) Apr. 21, 2010
Analog Design Journal A new filter topology for analog high-pass filters Aug. 06, 2008

Related design resources

Design tools & simulation

SIMULATION TOOL
PSPICE-FOR-TI PSpice® for TI design and simulation tool TINA-TI SPICE-based analog simulation program
CALCULATION TOOL
ANALOG-ENGINEER-CALC Analog engineer's calculator

Reference designs

REFERENCE DESIGN
TIPD185 AC Coupled, Single-Supply, Inverting and Non-inverting Amplifier Reference Design

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