LT6203X - High Temperature 175°C Dual 100MHz, Rail-to-Rail Input and Output, Ultralow 1.9nV/√Hz Noise, Low Power Op Amp


  • Extreme High Temperature Operation: –40°C to 175°C
  • Low Noise Voltage: 1.9nV/√Hz (100kHz)
  • Low Supply Current: 3mA/Amp Max
  • Gain Bandwidth Product: 100MHz
  • Low Distortion: –80dB at 1MHz
  • Low Offset Voltage: 500µV Max
  • Wide Supply Range: 2.5V to 12.6V
  • Inputs and Outputs Swing Rail-to-Rail
  • Common Mode Rejection Ratio 90dB Typ
  • Low Noise Current: 1.1pA/√Hz
  • Output Current: 30mA Min
  • 8-Pin SO Package
  • Available as Dice

Typical Application

LT6203X Typical Application
LT6203X Typical Application


The LT6203X is a dual low noise, rail-to-rail input and output unity gain stable op amp that features 1.9nV/√Hz noise voltage and draws only 2.5mA of supply current per amplifier. These amplifiers combine very low noise and supply current with a 100MHz gain bandwidth product, a 25V/µs slew rate, and are optimized for low supply signal conditioning systems.

These amplifiers maintain their performance for supplies from 2.5V to 12.6V and are specified at 3V, 5V and ±5V supplies. Harmonic distortion is less than –80dBc at 1MHz making these amplifiers suitable in low power data acquisition systems.

These devices can be used as plug-in replacements for many op amps to improve input/output range and noise performance.

The LT6203X is a member or a growing series of high temperature qualified products offered by Linear Technology.

The LT6203X comes in an 8-pin SO package with standard dual op amp pinout. The LT6203X is also available as dice.


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

Part Number Package Code Temp Package
LT6203XS8#PBF SO-8 S8 X 05-08-1610 (S8) Yes
LT6203XS8#TRPBF SO-8 S8 X 05-08-1610 (S8) Yes

LT6203X 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
LT6203XS8#PBF SO-8 X $96.80 $80.00 Yes
LT6203XS8#TRPBF SO-8 X $96.86 $80.06 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.

Click here to view our complete list of demo boards


  • Down Hole Drilling and Instrumentation
  • Heavy Industrial
  • Avionics
  • High Temperature Environments
  • Low Noise, Low Power Signal Processing
  • Active Filters
  • Rail-to-Rail Buffer Amplifiers
  • Driving A/D Converters
  • DSL Receivers
  • Battery Powered/Battery Backed Equipment

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