Home
Design & development

CIRCUIT060016

Non-inverting microphone pre-amplifier circuit

CIRCUIT060016

Overview

This circuit uses a non–inverting amplifier circuit configuration to amplify the microphone output signal. This circuit has very good magnitude flatness and exhibits minor frequency response deviations over the audio frequency range. The circuit is designed to be operated from a single 5-V supply.
Features
  • Single 5-V supply
  • Input pressure: 100 dB SPL (2 Pa)
  • Max output: 1.228 Vrms
  • Frequency range: 20 Hz to 20 kHz
General-purpose op amps
TLV6741 — Single, 5.5-V, 10-MHz, low noise (4.6-nV/√Hz) operational amplifier
Precision op amps (Vos<1mV)
OPA320 — Precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier
Download View video with transcript Video

Get started

  1. Read the circuit design
  2. Download the model

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 4
Type Title Date
* Circuit design Non-inverting microphone pre-amplifier circuit 30 Dec 2018
E-book Analog Engineer’s Circuit Cookbook: Amplifiers (Rev. C) 18 Dec 2023
E-book Analog Engineer’s Circuit Cookbook: Amplifiers (Rev. B) 05 Oct 2022
User guide Single-Supply Electret Microphone Preamplifier Reference Design 02 Feb 2015

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
TIPD181 — Single-Supply, Electret Microphone Preamplifier Reference Design

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support.

Videos