1. Products
  2. Amplifiers
  3. Operational Amplifiers (Op Amps)
  4. Low Power Op Amps (≤ 1mA/amp)
  5. LT1179


Overview

Features and Benefits

  • 17µA Max Supply Current per Amplifier
  • 70µV Max Offset Voltage
  • 250pA Max Offset Current
  • 5nA Max Input Bias Current
  • 0.9µVP-P 0.1Hz to 10Hz Voltage Noise
  • 1.5pAP-P 0.1Hz to 10Hz Current Noise
  • 0.5µV/°C Offset Voltage Drift
  • 85kHz Gain-Bandwidth Product
  • 0.04V/µs Slew Rate
  • Single Supply Operation:
    • Input Voltage Range Includes Ground
    • Output Swings to Ground while Sinking Current
    • No Pull Down Resistors are Needed
  • Output Sources and Sinks 5mA Load Current

Product Details

The LT1178 is a micropower dual op amp in the standard 8-pin configuration; the LT1179 is a micropower quad op amp offered in the standard 14-pin packages. Both devices are optimized for single supply operation at 5V. Specifications are also provided at ±15V supplies.

The extremely low supply current is combined with true precision specifications: offset voltage is 30µV, offset current is 50pA. Both offset parameters have low drift with temperature. The 1.5pAP-P current noise and picoampere offset current permit the use of megaohm level source resistors without introducing serious errors. Voltage noise, at 0.9µVP-P, is remarkably low considering the low supply current.

Both the LT1178 and LT1179 can be operated from a single supply (as low as one lithium cell or two NiCd batteries). The input range goes below ground. The all-NPN output stage swings to within a few millivolts of ground while sinking current—no power consuming pull down resistors are needed.

For applications where three times higher supply current is acceptable, the micropower LT1077 single, LT1078 dual and LT1079 quad are recommended. The LT1077/78/79 have significantly higher bandwidth, slew rate, lower voltage noise and better output drive capability.

Applications

  • Battery or Solar Powered Systems
    • Portable Instrumentation
    • Remote Sensor Amplifier
    • Satellite Circuitry
  • Micropower Sample-and-Hold
  • Thermocouple Amplifier
  • Micropower Filters

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:

LT1179
LT1179A

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.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LT1179ACN#PBF Material Declaration Reliability Data 14-Lead PDIP (Narrow 0.3 Inch)
LT1179CN#PBF Material Declaration Reliability Data 14-Lead PDIP (Narrow 0.3 Inch)
LT1179IN#PBF Material Declaration Reliability Data 14-Lead PDIP (Narrow 0.3 Inch)
LT1179SW#PBF Material Declaration Reliability Data 16-Lead SOIC (Wide 0.3 Inch)
LT1179SW#TRPBF Material Declaration Reliability Data 16-Lead SOIC (Wide 0.3 Inch)
Wafer Fabrication Data R046 Reliability Data

PCN-PDN Information

Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.

Sample & Buy


Ordering FAQs


See our Ordering FAQs for answers to questions about online orders, payment options and more.

 

Buy Now Pricing


(**) Displayed Buy Now Price and Price Range is based on small quantity orders.

 

List Pricing


(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

 

Lead Times


Please see the latest communication from our CCO regarding lead times.

 

Sampling


Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.


Price Table Help