LT1567 - 1.4nV/Rt.Hz 180MHz Filter Building Block

Features

  • Single-Ended to Differential Conversion
  • Low Noise: 1.4nV/Rt.Hz
  • 20µVRMS Total Wideband Noise in Filter with 2MHz fC
  • Dynamic Range: 104dB SNR at ±5V
  • Supply Voltage 2.7V to 12V Total
  • Rail-to-Rail Outputs
  • DC Accurate: Op Amp VOS 0.5mV (Typ)
  • Trimmed Bandwidth for Accurate Filters
  • MSOP-8 Surface Mount Package
  • No External Clock Required

Typical Application

LT1567 Typical Application
LT1567 Typical Application

Description

The LT1567 is an analog building block optimized for very low noise high frequency filter applications. It contains two wideband rail-to-rail operational amplifiers, one of them internally configured as a unity-gain inverter. With the addition of a few passive components, the LT1567 becomes a flexible second order filter section with cutoff frequency (fC) up to 5MHz, ideal for antialiasing or for channel filtering in high speed data communications systems. A spreadsheet-based design tool is available at www.linear.com for designing lowpass and bandpass filters using the LT1567.

In addition to low noise and high speed, the LT1567 features single-ended to differential conversion for direct driving of high speed differential input A/D converters. The LT1567 operates from a total power supply voltage of 2.7V to 12V and supports signal-to-noise ratios above 100dB.

The LT1567 is available in an 8-lead MSOP package.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LT1567CMS8#PBF MS-8 MS8 C 05-08-1660 Yes
LT1567CMS8#TRPBF MS-8 MS8 C 05-08-1660 Yes
LT1567IMS8#PBF MS-8 MS8 I 05-08-1660 Yes
LT1567IMS8#TRPBF MS-8 MS8 I 05-08-1660 Yes


LT1567 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LT1567CMS8#PBF MS-8 C $2.20 $1.85 Yes
LT1567CMS8#TRPBF MS-8 C $1.91 Yes
LT1567IMS8#PBF MS-8 I $2.75 $2.30 Yes
LT1567IMS8#TRPBF MS-8 I $2.36 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • Low Noise, High Speed Filters to 5MHz
  • Low Noise Differential Circuits
  • Communication Channel or Roofing Filters
  • Antialias or Reconstruction Filtering
  • Video Signal Processing
  • Single-Ended to Differential Conversion

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

Models for the following parts are available in LTspice:
LT1567

LT1567 Design Guide

The LT1567 is an analog building block optimized for very low noise high frequency filter applications. This easy to use Excel based Design Guide crunches the numbers to calculate all of the external component values and provides a 'ready to build' schematic of the filter.

Technical Support