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
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.
- 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® 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:
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|
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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.