Noise Measurement Post-Amp for Oscilloscope or Spectrum Analyzer
TIPD147
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

In some cases a scope or spectrum analyzer does not have the range required to measure very small noise levels.  This noise measurement post-amp boosts the output noise of the device under test (DUT) to allow for measurement with standard test equipment. The key requirements of this circuit is that it has a low noise floor and sufficient bandwidth for characterization of most devices.

Features
  • Test Circuit to amplify noise above instrument noise floor
  • Wide bandwidth 0.016Hz to 443kHz

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data


TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA209  2.2nV/rtHz, 18MHz, Precision, RRO, 36V Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA211  1.1nV/rtHz Noise, Low-Power, Precision Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA847  Wideband, Ultra-Low Noise,Voltage Feedback Operational Amplifier with Shutdown  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA209 Download Download
Download Download
Download Download
OPA211 Download Download
Download Download
Download -
OPA847 Download Download
Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 701 10 Dec 2013
Design files (2)
Title Type Size (KB) Date
PDF 188 15 Jan 2014
PDF 62 09 Jan 2014
Related Tools & Software

Software (2)



Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective 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 visit our Support page.

Technical articles