TIPD122

0.1-10Hz Amplifier Noise Measurement Filter Reference Design

TIPD122

Design files

Overview

This circuit is designed to amplify low frequency noise (0.1Hz to 10Hz) to a level that is easily measured by and oscilloscope. It achieves this function with a 0.1Hz second order high pass filter and a to 10Hz forth order low pass filter. The 0.1Hz to 10Hz noise measurement is a common figure of merit given in amplifier data sheets. This design is intended to facilitate the measurement 0.1Hz to 10Hz noise for the commonly used different package styles.

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Features
  • Filters 0.1Hz to 10Hz noise
  • Amplifies noise by a factor of 100,000 x
  • Allows for testing of common amplifier package configurations
This verified design includes:
  • Theory
  • Component Selection
  • TINA-TI Simulation
  • Schematics and PCB Layout
  • Verification and Measured Performance
  • Modification Options

Design files & products

Design files

Download ready-to-use system files to speed your design process.

SLAC592A.ZIP (473 K)

Detailed schematic diagram for design layout and components

TIDR219A.PDF (125 K)

Detailed schematic diagram for design layout and components

TIDR221A.PDF (69 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC166.ZIP (360 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

Precision op amps (Vos<1mV)

OPA827Low-noise, high-precision, JFET-input operational amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML

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Software

Support software

TIPD122 Simulation – TIDC167.ZIP (27 K)

Technical documentation

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Type Title Date
* User guide TIPD122 Verified Design Reference Guide Jun. 18, 2013

Related design resources

Design tools & simulation

SIMULATION TOOL
TINA-TI SPICE-based analog simulation program

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