LT1793
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LT1793

Low Noise, Picoampere Bias Current, JFET Input Op Amp

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LTspice LT1793 - Operational Amplifiers (Op Amps) Download 2.64 KB
Part Models 12
1ku List Price Starting From $2.77
Features
  • Input Bias Current, Warmed Up: 10pA Max
  • 100% Tested Low Voltage Noise: 8nV/√Hz Max
  • A Grade 100% Temperature Tested
  • Offset Voltage Over Temp: 1mV Max
  • Input Resistance: 1013Ω
  • Very Low Input Capacitance: 1.5pF
  • Voltage Gain: 1 Million Min
  • Gain-Bandwidth Product: 4.2MHz Typ
  • Guaranteed Specifications with ±5V Supplies
Additional Details
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The LT1793 achieves a new standard of excellence in noise performance for a JFET op amp. For the first time low voltage noise (6nV/√Hz) is simultaneously offered with extremely low current noise (0.8fA/√Hz), providing the lowest total noise for high impedance transducer applications. Unlike most JFET op amps, the very low input bias current (3pA typ) is maintained over the entire common mode range which results in an extremely high input resistance (1013Ω). When combined with a very low input capacitance (1.5pF) an extremely high input impedance results, making the LT1793 the first choice for amplifying low level signals from high impedance transducers. The low input capacitance also assures high gain linearity when buffering AC signals from high impedance transducers.

The LT1793 is unconditionally stable for gains of 1 or more, even with 1000pF capacitive loads. Other key features are 250µV VOS and a voltage gain over 4 million. Each individual amplifier is 100% tested for voltage noise, slew rate (3.4V/µs) and gain-bandwidth product (4.2MHz).

Specifications at ±5V supply operation are also provided. For an even lower voltage noise please see the LT1792 data sheet.

Applications

  • Photocurrent Amplifiers
  • Hydrophone Amplifiers
  • High Sensitivity Piezoelectric Accelerometers
  • Low Voltage and Current Noise Instrumentation Amplifier Front Ends
  • Two and Three Op Amp Instrumentation Amplifiers
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Documentation View All Documentation
LTspice LT1793 - Operational Amplifiers (Op Amps) Download 2.64 KB
Part Models 12
1ku List Price Starting From $2.77
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LT1793

Documentation

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Data Sheet

1

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UPDATED 08/27/2007
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LT1793: Low Noise, Picoampere Bias Current, JFET Input Op Amp Data Sheet

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Design Note

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UPDATED 07/28/2014
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DN254 - LT1806: 325MHz Low Noise Rail-to-Rail SOT-23 Op Amp Saves Board Space redirect icon

74.00K

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UPDATED 02/25/2008
Japanese
DN254 LT1806:ボード・スペースを節約する325MHz低ノイズ レール・トゥ・レールSOT-23オペアンプ redirect icon

42.00K

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UPDATED 06/27/2014
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DN219 - 24-Bit ADC Measures from DC to Daylight redirect icon

74.00K

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UPDATED 02/25/2008
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DN219 DC から日光まで測定する24 ビットADC redirect icon

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UPDATED 11/07/2022
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Design note 219: 24-Bit ADC Measures from DC to Daylight redirect icon

User Guide

1

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UPDATED 02/01/2012
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DC417B - Demo Manual redirect icon

137.00K

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Reliability Data

1

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UPDATED 03/23/2018
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R408 Reliability Data redirect icon

20.23 K

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Technical Articles

2

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UPDATED 09/01/1999
English
JFET Op Amps Equal Low Noise Bipolars and Have Picoamp Current Noise redirect icon

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UPDATED 05/01/2001
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1MΩ Transimpedance Amplifier Achieves Near-Theoretical Noise Performance, 2.4GHz Gain Bandwidth, with Large-Area Photodiodes redirect icon

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Documentation

Technical Documents 8
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Data Sheet 1

LT1793: Low Noise, Picoampere Bias Current, JFET Input Op Amp Data Sheet

Reliability Data 1

R408 Reliability Data

User Guide 1

DC417B - Demo Manual

Design Note 3

DN254 - LT1806: 325MHz Low Noise Rail-to-Rail SOT-23 Op Amp Saves Board Space
DN219 - 24-Bit ADC Measures from DC to Daylight
Design note 219: 24-Bit ADC Measures from DC to Daylight

Technical Articles 2

JFET Op Amps Equal Low Noise Bipolars and Have Picoamp Current Noise
1MΩ Transimpedance Amplifier Achieves Near-Theoretical Noise Performance, 2.4GHz Gain Bandwidth, with Large-Area Photodiodes

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 Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT1793ACN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LT1793ACS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793ACS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793AIN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793AIS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LT1793AIS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793CN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793CS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793CS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793IN8#PBF 8-Lead PDIP (Narrow 0.3 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793IS8#PBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT1793IS8#TRPBF 8-Lead SOIC (Narrow 0.15 Inch) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Product Lifecycle

PCN

Oct 8, 2024

- 24_0234

Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package

LT1793ACN8#PBF

PRODUCTION

LT1793AIN8#PBF

PRODUCTION

LT1793CN8#PBF

PRODUCTION

LT1793IN8#PBF

PRODUCTION

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PCN24_0234_Form

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Material_Report

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Marking Comparison

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Oct 11, 2022

- 22_0241

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1793ACN8#PBF

PRODUCTION

LT1793AIN8#PBF

PRODUCTION

LT1793CN8#PBF

PRODUCTION

LT1793IN8#PBF

PRODUCTION

pdf

PCN22_0241_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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Aug 6, 2022

- 22_0172

Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LT1793ACN8#PBF

PRODUCTION

LT1793AIN8#PBF

PRODUCTION

LT1793CN8#PBF

PRODUCTION

LT1793IN8#PBF

PRODUCTION

pdf

PCN22_0172_Form

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xls

Material_Report

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xlsm

Delta Qualification Matrix

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Oct 24, 2024

- 24_0246

Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package

LT1793ACS8#PBF

PRODUCTION

LT1793ACS8#TRPBF

PRODUCTION

LT1793AIS8#PBF

PRODUCTION

LT1793AIS8#TRPBF

PRODUCTION

LT1793CS8#PBF

PRODUCTION

LT1793CS8#TRPBF

PRODUCTION

LT1793IS8#PBF

PRODUCTION

LT1793IS8#TRPBF

PRODUCTION

pdf

PCN24_0246_Form

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xls

Material_Report

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pdf

Marking Comparison

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xlsm

Delta Qualification Matrix

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Oct 12, 2022

- 22_0255

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LT1793ACS8#PBF

PRODUCTION

LT1793ACS8#TRPBF

PRODUCTION

LT1793AIS8#PBF

PRODUCTION

LT1793AIS8#TRPBF

PRODUCTION

LT1793CS8#PBF

PRODUCTION

LT1793CS8#TRPBF

PRODUCTION

LT1793IS8#PBF

PRODUCTION

LT1793IS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

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xls

Material_Report

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pdf

Qualification Results Summary

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xlsm

Delta Qualification Matrix

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Jun 16, 2021

- 21_0026

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1793ACS8#PBF

PRODUCTION

LT1793ACS8#TRPBF

PRODUCTION

LT1793AIS8#PBF

PRODUCTION

LT1793AIS8#TRPBF

PRODUCTION

LT1793CS8#PBF

PRODUCTION

LT1793CS8#TRPBF

PRODUCTION

LT1793IS8#PBF

PRODUCTION

LT1793IS8#TRPBF

PRODUCTION

pdf

PCN21_0026_Form

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Material_Report

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Delta Qualification Matrix

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PCN

Oct 8, 2024

- 24_0234

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Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package

LT1793ACN8#PBF

PRODUCTION

LT1793AIN8#PBF

PRODUCTION

LT1793CN8#PBF

PRODUCTION

LT1793IN8#PBF

PRODUCTION

pdf

PCN24_0234_Form

external-icon

xls

Material_Report

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pdf

Marking Comparison

external-icon
Oct 11, 2022

- 22_0241

arrow down

Epoxy Change from Henkel 8290 to 8290A for PDIP Package

LT1793ACN8#PBF

PRODUCTION

LT1793AIN8#PBF

PRODUCTION

LT1793CN8#PBF

PRODUCTION

LT1793IN8#PBF

PRODUCTION

pdf

PCN22_0241_Form

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xls

Material_Report

Download

pdf

Qualification Results Summary

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Aug 6, 2022

- 22_0172

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Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG]

LT1793ACN8#PBF

PRODUCTION

LT1793AIN8#PBF

PRODUCTION

LT1793CN8#PBF

PRODUCTION

LT1793IN8#PBF

PRODUCTION

pdf

PCN22_0172_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
Oct 24, 2024

- 24_0246

arrow down

Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package

LT1793ACS8#PBF

PRODUCTION

LT1793ACS8#TRPBF

PRODUCTION

LT1793AIS8#PBF

PRODUCTION

LT1793AIS8#TRPBF

PRODUCTION

LT1793CS8#PBF

PRODUCTION

LT1793CS8#TRPBF

PRODUCTION

LT1793IS8#PBF

PRODUCTION

LT1793IS8#TRPBF

PRODUCTION

pdf

PCN24_0246_Form

external-icon

xls

Material_Report

Download

pdf

Marking Comparison

external-icon

xlsm

Delta Qualification Matrix

Download
Oct 12, 2022

- 22_0255

arrow down

Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2)

LT1793ACS8#PBF

PRODUCTION

LT1793ACS8#TRPBF

PRODUCTION

LT1793AIS8#PBF

PRODUCTION

LT1793AIS8#TRPBF

PRODUCTION

LT1793CS8#PBF

PRODUCTION

LT1793CS8#TRPBF

PRODUCTION

LT1793IS8#PBF

PRODUCTION

LT1793IS8#TRPBF

PRODUCTION

pdf

PCN22_0255_Form

external-icon

xls

Material_Report

Download

pdf

Qualification Results Summary

external-icon

xlsm

Delta Qualification Matrix

Download
Jun 16, 2021

- 21_0026

arrow down

Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM

LT1793ACS8#PBF

PRODUCTION

LT1793ACS8#TRPBF

PRODUCTION

LT1793AIS8#PBF

PRODUCTION

LT1793AIS8#TRPBF

PRODUCTION

LT1793CS8#PBF

PRODUCTION

LT1793CS8#TRPBF

PRODUCTION

LT1793IS8#PBF

PRODUCTION

LT1793IS8#TRPBF

PRODUCTION

pdf

PCN21_0026_Form

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xls

Material_Report

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xlsm

Delta Qualification Matrix

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Software & Part Ecosystem

Evaluation Kits 1

Evaluation Kits1

evaluation kit item images

DC417B

DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp

Tools & Simulations 1

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.

spice tool Lt Spice

LT1793 - Operational Amplifiers (Op Amps) Download

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