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CIRCUIT060066

Inverting dual-supply to single-supply amplifier circuit

CIRCUIT060066

Overview

This inverting dual-supply to single-supply amplifier translates a ±10-V signal to a 0-V to 5-V signal for use with an ADC. Levels can easily be adjusted using the given equations. The buffer can be replaced with other ±15-V configurations to accommodate the desired input signal, as long as the output of the first stage is low impedance.
Features
  • Input: Vi = -10 V to 10 V
  • Output: Vo = 0.2 V to 4.8 V
  • Supply:
    • Vcc = 15 V
    • Vee = -15 V
    • Vdd = 5 V
    • Vref = 4.096 V
Precision op amps (Vos<1mV)
OPA376 — Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp
General-purpose op amps
OPA375 — OPAx375, 500uV, 10-MHz, Low Broadband Noise, RRO, Operational Amplifier
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Type Title Date
* Circuit design Inverting dual-supply to single-supply amplifier circuit 09 Jan 2019

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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
TIPD148 — Level Translation: Dual to Single Supply Amp, ±15V to 5V

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