Overview
Features and Benefits
- Guaranteed Offset Voltage 150µV Max
- -55°C to 125°C 500µV Max
- Guaranteed Drift 4µV/°C Max
- Guaranteed Bias Current
- 70°C : 150pA Max
- 125°C : 2.5nA Max
- Guaranteed Slew Rate 12V/µs Min
- Available in 8-Pin PDIP and SO Packages
Product Details
The LT1055/LT1056 JFET input operational amplifiers combine precision specifications with high speed performance.
For the first time, 16V/µs slew rate and 6.5MHz gain-bandwidth product are simultaneously achieved with offset voltage of typically 50µV, 1.2µV/°C drift, bias currents of 40pA at 70°C and 500pA at 125°C.
The 150µV maximum offset voltage specification is the best available on any JFET input operational amplifier.
The LT1055 and LT1056 are differentiated by their operating currents. The lower power dissipation LT1055 achieves lower bias and offset currents and offset voltage. The additional power dissipation of the LT1056 permits higher slew rate, bandwidth and faster settling time with a slight sacrifice in DC performance.
The voltage-to-frequency converter shown below is one of the many applications which utilize both the precision and high speed of the LT1055/LT1056.
For a JFET input op amp with 23V/µs guaranteed slew rate, refer to the LT1022 data sheet.
Applications
- Precision, High Speed Instrumentation
- Logarithmic Amplifiers
- D/A Output Amplifiers
- Photodiode Amplifiers
- Voltage-to-Frequency Converters
- Frequency-to-Voltage Converters
- Fast, Precision Sample-and-Hold
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
-
R040 Reliability Data3/26/2018
-
AN141 - Risk Assessment Advice for High Reliability Amplifiers10/7/2013
-
AN13 - High Speed Comparator Techniques8/15/2012
-
AN10 - Methods for Measuring Op Amp Settling Time8/15/2012
-
AN3 - Applications for a Switched-Capacitor Instrumentation Building Block7/8/2010
-
AN18 - Power Gain Stages for Monolithic Amplifiers6/14/2010
-
AN14 - Designs for High Performance Voltage-to-Frequency Converters3/26/2010
-
AN7 - Some Techniques for Direct Digitization of Transducer Outputs3/26/2010
-
AN72 - A Seven-Nanosecond Comparator for Single Supply Operation8/20/2007
-
AN48 - Using the LTC Op Amp Macromodels8/20/2007
-
AN33 - Converting Light to Digits: LTC1099 Half Flash 8-Bit A/D Converter Digitizes Photodiode Array8/20/2007
-
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
-
DN43 - LT1056 Improved JFET Op Amp Macromodel Slews Asymmetrically7/24/2014
-
DN6 - Operational Amplifier Selection Guide for Optimum Noise Performance8/20/2007
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.
Models for the following parts are available in LTspice:
LT1056
LT1056A
LT1056S8
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 |
|---|---|---|---|---|
| LT1056CN8#PBF | Material Declaration | Reliability Data | 8-Lead PDIP (Narrow 0.3 Inch) | |
| LT1056S8#PBF | Material Declaration | Reliability Data | 8-Lead SOIC (Narrow 0.15 Inch) | |
| LT1056S8#TRPBF | Material Declaration | Reliability Data | 8-Lead SOIC (Narrow 0.15 Inch) | |
| Wafer Fabrication Data | R040 Reliability Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
LT1056 Discussions
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.
Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.