Features and Benefits
- Offset Voltage – Prime Grade: 60µV Max
- Offset Voltage – Low Cost Grade
(Including Surface Mount Dual/Quad): 75µV Max
- Offset Voltage Drift: 0.5µV/°C Max
- Input Bias Current: 250pA Max
- 0.1Hz to 10Hz Noise: 0.3µVP-P, 2.2pAP-P
- Supply Current per Amplifier: 400µA Max
- CMRR: 120dB Min
- Voltage Gain: 1 Million Min
- Guaranteed Specs with ±1.0V Supplies
- Guaranteed Matching Specifications
- SO-8 Package – Standard Pinout
- LT1114 in Narrow Surface Mount Package
The LT1112 dual and LT1114 quad op amps achieve a new standard in combining low cost and outstanding precision specifications.
The performance of the selected prime grades matches or exceeds competitive devices. In the design of the LT1112/LT1114 however, particular emphasis has been placed on optimizing performance in the low cost plastic and SO packages. For example, the 75µV maximum offset voltage in these low cost packages is the lowest on any dual or quad non-chopper op amp.
The LT1112/LT1114 also provide a full set of matching specifications, facilitating their use in such matching dependent applications as two and three op amp instrumentation amplifiers.
Another set of specifications is furnished at ±1V supplies. This, combined with the low 320µA supply current per amplifier, allows the LT1112/LT1114 to be powered by two nearly discharged AA cells.
- Picoampere/Microvolt Instrumentation
- Two and Three Op Amp Instrumentation Amplifers
- Thermocouple and Bridge Amplifiers
- Low Frequency Active Filters
- Photo Current Amplifiers
- Battery-Powered Systems
Product Lifecycle 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.
Documentation & Resources
R258 Reliability Data3/22/201820 K
AN67 - Linear Technology Magazine Circuit Collection, Volume III8/20/20071M
DN107 - C-Load TM Op Amps Conquer Instabilities6/28/2016483K
DN83 - C-Load TM Op Amps Tame Instabilities6/28/2016907K
DN214 - Selecting Op Amps for Precision 16-Bit DACs7/8/201474K
Consider New Precision Amplifiers for Updated Industrial Equipment Designs9/1/2009 LT Journal
New Rail-to-Rail Output Op Amps Bring Precision Performance to Low Voltage Systems5/1/2000 LT Journal
16-Bit Parallel DAC Has 1LSB Linearity, Ultralow Glitch and Accurate 4-Quadrant Resistors2/1/1999 LT Journal
The LT1167: Precision, Low Cost, Low Power Instrumentation Amplifier Requires a Single Gain-Set Resistor5/1/1998 LT Journal
Tools & Simulations
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.
Models for the following parts are available in LTspice:
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
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.
Support & Discussions
Sample & Buy
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
(*)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.
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