LT1124 - Dual Low Noise, High Speed Precision Op Amps

Features

  • 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

Typical Application

LT1124 Typical Application
LT1124 Typical Application

Description

The LT®1124 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.

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
LT1124ACN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1124AIS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1124AIS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1124AMPS8 SO-8 S8 MP 05-08-1610 (S8) No
LT1124AMPS8#PBF SO-8 S8 MP 05-08-1610 (S8) Yes
LT1124AMPS8#TR SO-8 S8 MP 05-08-1610 (S8) No
LT1124AMPS8#TRPBF SO-8 S8 MP 05-08-1610 (S8) Yes
LT1124CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1124CS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1124CS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1124IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1124IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes


LT1124 Package Drawing
LT1124 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
LT1124ACN8#PBF N-8 C $5.17 $4.25 Yes
LT1124AIS8#PBF SO-8 I $6.10 $5.00 Yes
LT1124AIS8#TRPBF SO-8 I $5.06 Yes
LT1124AMPS8 SO-8 MP $18.30 $15.12 No
LT1124AMPS8#PBF SO-8 MP $18.30 $15.12 Yes
LT1124AMPS8#TR SO-8 MP $15.18 No
LT1124AMPS8#TRPBF SO-8 MP $15.18 Yes
LT1124CN8#PBF N-8 C $4.25 $3.50 Yes
LT1124CS8#PBF SO-8 C $4.50 $3.70 Yes
LT1124CS8#TRPBF SO-8 C $3.76 Yes
LT1124IS8#PBF SO-8 I $5.00 $4.10 Yes
LT1124IS8#TRPBF SO-8 I $4.16 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

  • 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

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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

Models for the following parts are available in LTspice:
LT1124

Technical Support