Features and Benefits
- Guaranteed Low Offset Voltage
- LT1001AM 15µV max
- LT1001C 60µV max
- Guaranteed Low Drift
- LT1001AM 0.6µV/°C max
- LT1001C 1.0µV/°C max
- Guaranteed Low Bias Current
- LT1001AM 2nA max
- LT1001C 4nA max
- Guaranteed CMRR
- LT1001AM 114dB min
- LT1001C 110dB min
- Guaranteed PSRR
- LT1001AM 110dB min
- LT1001C 106dB min
- Low Power Dissipation
- LT1001AM 75mW max
- LT1001C 80mW max
- Low Noise 0.3µVp-p
The LT1001 significantly advances the state-of-the-art of precision operational amplifiers. 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. Consequently, the specifications of the lowest cost, commercial temperature device, the LT1001C, have been dramatically improved when compared to equivalent grades of competing precision amplifiers.
Essentially, the input offset voltage of all units is less than 50µV (see distribution plot below). This allows the LT1001AM/883 to be specified at 15µV. Input bias and offset currents, common-mode and power supply rejection of the LT1001C offer guaranteed performance which were previously attainable only with expensive, selected grades of other devices. Power dissipation is nearly halved compared to the most popular precision op amps, without adversely affecting noise or speed performance. A beneficial by-product of lower dissipation is decreased warm-up drift. Output drive capability of the LT1001 is also enhanced with voltage gain guaranteed at 10mA of load current. For similar performance in a dual precision op amp, with guaranteed matching specifications, see the LT1002. Shown below is a platinum resistance thermometer application.
- Thermocouple amplifiers
- Strain gauge amplifiers
- Low level signal processing
- High accuracy data acquisition
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.
Evaluation Kits (1)
Documentation & Resources
R007 Reliability Data3/22/2018
AN12 - Circuit Techniques for Clock Sources2/5/2013
AN10 - Methods for Measuring Op Amp Settling Time8/15/2012
AN28 - Thermocouple Measurement9/20/2010
AN3 - Applications for a Switched-Capacitor Instrumentation Building Block7/8/2010
AN21 - Composite Amplifiers5/4/2010
AN5 - Thermal Techniques in Measurement and Control Circuitry3/26/2010
AN86 - A Standards Lab Grade 20-Bit DAC with 0.1ppm/° Drift: The Dedicated Art of Digitizing One Part Per Million10/15/2007
AN74 - Component and Measurement Advances Ensure 16-Bit DAC Settling Time8/20/2007
AN6 - Applications of New Precision Op Amps8/20/2007
DC417B - Demo Manual2/1/2012
DN15 - Noise Calculations in Op Amp Circuits6/28/2016
DN3 - Operational Amplifier Selection Guide for Optimum Noise Performance6/28/2016
DN140 - Updated Operational Amplifier Selection Guide for Optimum Noise Performance7/28/2014
DN42 - Chopper vs Bipolar Op Amps—An Unbiased Comparison7/24/2014
DN6 - Operational Amplifier Selection Guide for Optimum Noise Performance8/20/2007
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.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
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.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.