LT6203 - Dual 100MHz, Rail-to-Rail Input and Output, Ultralow 1.9nVrtHz Noise, Low Power Op Amps


  • Low Noise Voltage: 1.9nV/√Hz (100kHz)
  • Low Supply Current: 3mA/Amp Max
  • Gain Bandwidth Product: 100MHz
  • Dual LT6203 in Tiny DFN Package
  • Low Distortion: –80dB at 1MHz
  • Low Offset Voltage: 500μV Max
  • Wide Supply Range: 2.5V to 12.6V
  • Input Common Mode Range Includes Both Rails
  • Output Swings Rail-to-Rail
  • Common Mode Rejection Ratio 90dB Typ
  • Unity Gain Stable
  • Low Noise Current: 1.1pA/√Hz
  • Output Current: 30mA Min
  • Operating Temperature Range –40°C to 85°C
  • Low Profile (1mm) SOT-23 (ThinSOT™) Package

Typical Application

LT6203 Typical Application
LT6203 Typical Application


The LT®6202/LT6203/LT6204 are single/dual/quad low noise, rail-to-rail input and output unity gain stable op amps that feature 1.9nV/√Hz noise voltage and draw 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.

The LT6202 is available in the 5-pin TSOT-23 and the 8-pin SO, while the LT6203 comes in 8-pin SO and MSOP packages with standard op amp pinouts. For compact layouts the LT6203 is also available in a tiny fine line leadless package (DFN), while the quad LT6204 is available in the 16-pin SSOP and 14-pin SO packages. These devices can be used as plug-in replacements for many op amps to improve input/output range and noise performance.


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
LT6203CDD#PBF 3x3 DFN-8 DD C 05-08-1698 Yes
LT6203CDD#TRPBF 3x3 DFN-8 DD C 05-08-1698 Yes
LT6203CMS8#PBF MS-8 MS8 C 05-08-1660 Yes
LT6203CMS8#TRPBF MS-8 MS8 C 05-08-1660 Yes
LT6203CS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT6203CS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT6203HMS8#PBF MS-8 MS8 H 05-08-1660 Yes
LT6203HMS8#TRPBF MS-8 MS8 H 05-08-1660 Yes
LT6203IDD#PBF 3x3 DFN-8 DD I 05-08-1698 Yes
LT6203IDD#TRPBF 3x3 DFN-8 DD I 05-08-1698 Yes
LT6203IMS8#PBF MS-8 MS8 I 05-08-1660 Yes
LT6203IMS8#TRPBF MS-8 MS8 I 05-08-1660 Yes
LT6203IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT6203IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes

LT6203 Package Drawing
LT6203 Package Drawing
LT6203 Package Drawing
LT6203 Package Drawing
LT6203 Package Drawing
LT6203 Package Drawing
LT6203 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
LT6203CDD#PBF 3x3 DFN-8 C $3.76 $2.74 Yes
LT6203CDD#TRPBF 3x3 DFN-8 C $2.79 Yes
LT6203CMS8#PBF MS-8 C $3.50 $2.55 Yes
LT6203CMS8#TRPBF MS-8 C $2.61 Yes
LT6203CS8#PBF SO-8 C $3.40 $2.45 Yes
LT6203CS8#TRPBF SO-8 C $2.51 Yes
LT6203HMS8#PBF MS-8 H $4.73 $3.63 Yes
LT6203HMS8#TRPBF MS-8 H $3.69 Yes
LT6203IDD#PBF 3x3 DFN-8 I $4.62 $3.55 Yes
LT6203IDD#TRPBF 3x3 DFN-8 I $3.60 Yes
LT6203IMS8#PBF MS-8 I $4.30 $3.30 Yes
LT6203IMS8#TRPBF MS-8 I $3.36 Yes
LT6203IS8#PBF SO-8 I $4.15 $3.20 Yes
LT6203IS8#TRPBF SO-8 I $3.26 Yes
Buy NowRequest 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.

Part Number Description Price Documentation
DC1925A-A LTC2378-20 Demo Board | 20-Bit, 1Msps, SAR ADC with 104dB SNR. Req DC2026 $200.00
DC1925A-B LTC2377-20 Demo Board | 20-Bit, 500ksps, SAR ADC with 104dB SNR. Req DC2026 $200.00
DC1925A-C LTC2376-20 Demo Board | 20-Bit, 250ksps, SAR ADC with 104dB SNR. Req DC2026 $200.00
DC599A LT6203CDD | Dual, 100MHz, Rail to Rail Input and Output, Low Noise, Low Power Op Amp in DFN Package $50.00
Buy Now

Companion Boards

Part Number Description Price Documentation
DC2026C Linduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform $75.00
DC890B USB Data Acquisition Controller, for PScope Evaluation Kits (up to 250Mbps, CMOS/LVDS) $300.00
DC1075A Clock Divider board $50.00
Buy Now
Click here to view our complete list of demo boards


  • Low Noise, Low Power Signal Processing
  • Active Filters
  • Rail-to-Rail Buffer Amplifiers
  • Driving A/D Converters
  • DSL Receivers
  • Battery Powered/Battery Backed Equipment

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 with questions and comments.

Design Tools


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:

Technical Support