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CIRCUIT060042

Sine wave oscillator circuit

CIRCUIT060042

Overview

This circuit uses a quad channel op amp with ±2.5-V supplies to generate a 10-kHz, low-distortion sine wave. The amplifiers buffer each RC filter stage, which yields a low-distortion output.
Features
  • IAC specifications:
    • AC Gain = 8 V/V
    • f_oscillation = 10 kHz
  • Supply:
    • Vcc = 2.5 V
    • Vee = -2.5 V
General-purpose op amps
TLV9052 — Dual, 5.5-V, 5-MHz, 15-V/μs slew rate, RRIO operational amplifier for cost-optimized applications TLV9064 — Quad, 5.5-V, 10-MHz, RRIO operational amplifier for cost-optimized applications
Precision op amps (Vos<1mV)
OPA4325 — Low noise (10nV/rtHz), wide bandwidth (10MHz), low power (0.65mA), quad zero crossover op amp
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Technical documentation

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Type Title Date
* Circuit design Sine wave generator circuit PDF | HTML 21 Jul 2021
* Application note Sine Wave Oscillator 21 Mar 2001
Application note AN-263 Sine Wave Generation Techniques (Rev. C) 22 Apr 2013
Analog Design Journal Design of op amp sine wave oscillators 11 Mar 2005

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