Overview

Features and Benefits

  • 100% Tested Low Voltage Noise:
    • 2.7nV/√Hz Typ
    • 4.2nV/√Hz Max
  • Slew Rate: 4.5V/μs Typ
  • Gain-Bandwidth Product: 12.5MHz Typ
  • Offset Voltage,
    • Prime Grade: 70μV Max
    • Low Grade: 100μV Max
  • High Voltage Gain: 5 Million Min
  • Supply Current Per Amplifier: 2.75mA Max
  • Common Mode Rejection: 112dB Min
  • Power Supply Rejection: 116dB Min
  • Available in 8-Pin SO Package

Product Details

The LT1124 dual and LT1125 quad are high performance op amps that offer higher gain, slew rate and bandwidth than the industry standard OP-27 and competing OP‑270/ OP-470 op amps. In addition, the LT1124/LT1125 have lower IB and IOS than the OP-27; lower VOS and noise than the OP-270/OP-470.

In the design, processing and testing of the device, particular attention has been paid to the optimization of the entire distribution of several key parameters. Slew rate, gain bandwidth and 1kHz noise are 100% tested for each individual amplifier. Consequently, the specifications of even the lowest cost grades (the LT1124C and the LT1125C) have been spectacularly improved compared to equivalent grades of competing amplifiers.

Power consumption of the LT1124 is one-half of two OP-27s. Low power and high performance in an 8-pin SO package make the LT1124 a first choice for surface mounted systems and where board space is restricted.

For a decompensated version of these devices, with three times higher slew rate and bandwidth, please see the LT1126/LT1127 data sheet.

Applications

  • Two and Three Op Amp Instrumentation Amplifiers
  • Low Noise Signal Processing
  • Active Filters
  • Microvolt Accuracy Threshold Detection
  • Strain Gauge Amplifiers
  • Direct Coupled Audio Gain Stages
  • Tape Head Preamplifiers
  • Infrared Detectors

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

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.

LTspice

Models for the following parts are available in LTspice:

LT1124

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Discussions

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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 Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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