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LTC6911

PRODUCTION

Dual Matched Amplifiers with Digitally Programmable Gain in MSOP

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Overview

  • 3-Bit Digital Gain Control:
    • (Inverting Gains of 0, 1, 2, 5, 10, 20, 50 and 100V/V) -1  Option
    • (Inverting Gains of 0, 1, 2, 4, 8, 16, 32 and 64V/V) -2 Option
  • Two Matched Programmable Gain Amplifiers
  • Channel-to-Channel Gain Matching of 0.1dB (Max)
  • Rail-to-Rail Input Range
  • Rail-to-Rail Output Swing
  • Single or Dual Supply: 2.7V to 10.5V Total
  • 11MHz Gain Bandwidth Product
  • Input Noise: 10nV/√Hz
  • Total System Dynamic Range to 120dB
  • Input Offset Voltage: 2mV, Gain of 10
  • Low Profile 10-Lead MSOP Package

The LTC6911 is a family of low noise digitally programmable gain amplifiers (PGAs) that are easy to use and occupy very little PC board space. The matched gain of both channels is adjustable using a 3-bit parallel interface to select voltage gains of 0, 1, 2, 5, 10, 20, 50 and 100V/ V (LTC6911-1) and 0, 1, 2, 4, 8, 16, 32 and 64V/V (LTC6911-2). All gains are inverting.

The LTC6911 family consists of two matched inverting amplifiers with rail-to-rail outputs. When operated with unity gain, they will also process rail-to-rail input signals. A half-supply reference generated internally at the AGND pin supports single power supply applications. Operating from single or split supplies from 2.7V to 10.5V, the LTC6911 family is offered in a 10-lead MSOP package.

Applications

  • Data Acquisition Systems
  • Dynamic Gain Changing
  • Automatic Ranging Circuits
  • Automatic Gain Control

LTC6911
Dual Matched Amplifiers with Digitally Programmable Gain in MSOP
Frequency Response (LTC6911-1) Product Package 1
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Documentation

Data Sheet

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Software Resources

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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • LTC6911-1
  • LTC6911-2
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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