LT1792 - Low Noise, Precision, JFET Input Op Amp

Features

  • 100% Tested Low Voltage Noise: 6nV/rtHz Max
  • A Grade 100% Temperature Tested
  • Voltage Gain: 1.2 Million Min
  • Offset Voltage Over Temp: 800µV Max
  • Gain-Bandwidth Product: 5.6MHz Typ
  • Guaranteed Specifications with ±5V Supplies

Typical Application

LT1792 Typical Application
LT1792 Typical Application

Description

The LT®1792 achieves a new standard of excellence in noise performance for a JFET op amp. The 4.2nV/rtHz voltage noise combined with low current noise and picoampere bias currents make the LT1792 an ideal choice for amplifying low level signals from high impedance capacitive transducers. The LT1792 is unconditionally stable for gains of 1 or more, even with load capacitances up to 1000pF. Other key features are 600µV VOS and a voltage gain of over 4 million. Each individual amplifier is 100% tested for voltage noise, slew rate and gain bandwidth. The design of the LT1792 has been optimized to achieve true precision performance with an industry standard pinout in the SO-8 package. Specifications are also provided for ±5V supplies.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LT1792ACN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1792ACS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1792ACS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1792AIN8#PBF N-8 N I 05-08-1510 (N8) Yes
LT1792AIS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1792AIS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1792CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1792CS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1792CS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1792IN8#PBF N-8 N I 05-08-1510 (N8) Yes
LT1792IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1792IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes


LT1792 Package Drawing
LT1792 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LT1792ACN8#PBF N-8 C $3.95 $3.35 Yes
LT1792ACS8#PBF SO-8 C $3.95 $3.35 Yes
LT1792ACS8#TRPBF SO-8 C $3.41 Yes
LT1792AIN8#PBF N-8 I $5.00 $4.25 Yes
LT1792AIS8#PBF SO-8 I $5.00 $4.25 Yes
LT1792AIS8#TRPBF SO-8 I $4.31 Yes
LT1792CN8#PBF N-8 C $2.75 $2.25 Yes
LT1792CS8#PBF SO-8 C $2.75 $2.25 Yes
LT1792CS8#TRPBF SO-8 C $2.31 Yes
LT1792IN8#PBF N-8 I $3.80 $3.15 Yes
LT1792IS8#PBF SO-8 I $3.80 $3.15 Yes
LT1792IS8#TRPBF SO-8 I $3.21 Yes
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* The USA 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC417B DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp $25.00
Buy Now
Click here to view our complete list of demo boards

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
  • Active Filters

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

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Models for the following parts are available in LTspice:
LT1792

Technical Support