Signal Conditioning Operational Amplifiers (Op Amps) Precision Amplifiers (Vos < 0.75mV)
Signal Conditioning Operational Amplifiers (Op Amps) Low Bias Current Amplifiers (Ib < 300pA)

LT1457 - Dual, Precision JFET Input Op Amp

Features

  • Handles 10,000pF Capacitive Load
  • 450µV Max Offset Voltage
  • 1200µV Max Offset Voltage in S8 Package
  • 50pA Bias Current at 70°C
  • 13nV/ rt Hz Voltage Noise
  • 4V/µs Slew Rate
  • 4µV/°C Drift
  • 130dB Channel Separation

Typical Application

LT1457 Typical Application
LT1457 Typical Application

Description

The LT1457 is a dual, JFET input op amp optimized for handling large capacitive loads in combination with precision performance. Precision specifications include 220µV offset voltage in plastic and surface mount packages. At 70°C input bias current is 50pA, input offset current is 20pA. Channel separation is 130dB. Other dual JFET input op amps from Linear Technology include the LT1057, which is three times faster than the LT1457 but at the expense of significantly lower capacitive load handling capability; and the LT1113 with 4.5nV/rt Hz voltage noise.

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
LT1457ACN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1457CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1457S8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1457S8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes


LT1457 Package Drawing
LT1457 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
LT1457ACN8#PBF N-8 C $5.83 $4.60 Yes
LT1457CN8#PBF N-8 C $3.00 $2.35 Yes
LT1457S8#PBF SO-8 C $3.17 $2.50 Yes
LT1457S8#TRPBF SO-8 C $2.56 Yes
Buy Now • Request Samples
* 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.

Click here to view our complete list of demo boards

Applications

  • Sample-and-Hold (Drives Large Hold Capacitors)
  • A/D and D/A Converters
  • Photodiode Amplifiers
  • Voltage-to-Frequency Converters

People Who Viewed This Product Also Viewed

Product Notifications

Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.

Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.

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

Models for the following parts are available in LTspice:
LT1457

Technical Support