Home
Design & development

CIRCUIT060052

Low-pass filtered, inverting amplifier circuit

CIRCUIT060052

Overview

This tunable low–pass inverting amplifier circuit amplifies the signal level by 26 dB or 20V/V. R2 and C1 set the cutoff frequency for this circuit. The frequency response of this circuit is the same as that of a passive RC filter, except that the output is amplified by the pass–band gain of the amplifier. Low–pass filters are often used in audio signal chains and are sometimes called bass–boost filters.
Features
  • Input: Vi = -0.1 V to 0.1 V
  • Output: Vo = -2 V to 2 V
  • BW: fp = 2 kHz
  • Supply:
    • Vee = -2.5 V
    • Vcc = 2.5 V
General-purpose op amps
OPA375 — OPAx375, 500uV, 10-MHz, Low Broadband Noise, RRO, Operational Amplifier TLV9002 — Dual, 5.5-V, 1-MHz, RRIO operational amplifier for cost-optimized applications
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 3
Type Title Date
* Circuit design Low-Pass Filtered, Inverting Amplifier Circuit (Rev. A) PDF | HTML 05 Jan 2021
Application note Basic Introduction to Filters - Active, Passive, and Switched-Cap (Rev. A) 21 Apr 2010
Application note More Filter Design on a Budget 06 Dec 2001

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

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