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LTC1992 Family

PRODUCTION

Low Power, Fully Differential Input/Output Amplifier/Driver Family

Data Sheet Product Selection Table
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Overview

  • Available with Adjustable Gain or Fixed Gain of 2, 5 or 10
  • ±0.3% (Max) Gain Error from –40°C to 85°C
  • 3.5ppm/°C Gain Temperature Coefficient
  • 5ppm Gain Long Term Stability
  • Fully Differential Input and Output
  • CLOAD Stable up to 10,000pF
  • Adjustable Output Common Mode Voltage
  • Rail-to-Rail Output Swing
  • Low Supply Current: 1mA (Max)
  • High Output Current: 10mA (Min)
  • Specified on a Single 2.7V to ±5V Supply
  • DC Offset Voltage <2.5mV (Max)
  • Available in 8-Lead MSOP Package

The LTC1992 product family consists of five fully differential, low power amplifiers. The LTC1992 is an unconstrained fully differential amplifier. The LTC1992-1, LTC1992-2, LTC1992-5 and LTC1992-10 are fixed gain blocks (with gains of 1, 2, 5 and 10 respectively) featuring precision on-chip resistors for accurate and ultrastable gain. All of the LTC1992 parts have a separate internal common mode feedback path for outstanding output phase balancing and reduced second order harmonics. The VOCM pin sets the output common mode level independent of the input common mode level. This feature makes level shifting of signals easy.

The amplifiers’ differential inputs operate with signals ranging from rail-to-rail with a common mode level from the negative supply up to 1.3V from the positive supply. The differential input DC offset is typically 250μV. The rail-to-rail outputs sink and source 10mA. The LTC1992 is stable for all capacitive loads up to 10,000pF.

The LTC1992 can be used in single supply applications with supply voltages as low as 2.7V. It can also be used with dual supplies up to ±5V. The LTC1992 is available in an 8-pin MSOP package.

Applications

  • Differential Driver/Receiver
  • Differential Amplification
  • Single-Ended to Differential Conversion
  • Level Shifting
  • Trimmed Phase Response for Multichannel Systems
LTC1992 Family
Low Power, Fully Differential Input/Output Amplifier/Driver Family
Single-Supply, Single-Ended to Differential Conversion Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

Technical Articles 2

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Matched Resistors & Transistors 1
LT5400
RECOMMENDED FOR NEW DESIGNS Quad Matched Resistor Network
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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC1992
  • LTC1992-1
  • LTC1992-10
  • LTC1992-2
  • LTC1992-5

ADI DiffAmpCalc™

ADI's new ADI DiffAmpCalc™ is a free, downloadable calculator for designing differential amplifier circuits. The tool is easy to use and features an interactive user interface to quickly get you up and running.

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ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

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Signal Chain Designer

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

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Sys-Parameter Models for Keysight Genesys

Sys-Parameter models contain behavioral parameters, such as P1dB, IP3, gain, noise figure and return loss, which describe nonlinear and linear characteristics of a device.

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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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