LT1125

PRODUCTION

Quad Low Noise, High Speed Precision Op Amps

Data Sheet Product Selection Table
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Overview

  • 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

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
LT1125
Quad Low Noise, High Speed Precision Op Amps
Instrumentation Amplifier with Shield Driver Input Offset Voltage Distribution (All Packages, LT1124 and LT1125) Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 2

Data Sheet

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

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LT1125
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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.

Latest Discussions

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the replacement of OP470GSZ?
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