LT6221 - Dual 60MHz, 20V/µs Low Power, Rail-to-Rail Input and Output Precision Op Amp


  • Gain Bandwidth Product: 60MHz
  • Input Common Mode Range Includes Both Rails
  • Output Swings Rail-to-Rail
  • Low Quiescent Current: 1mA Max
  • Input Offset Voltage: 350μV Max
  • Input Bias Current: 150nA Max
  • Wide Supply Range: 2.2V to 12.6V
  • Large Output Current: 50mA Typ
  • Low Voltage Noise: 10nV√Hz Typ
  • Slew Rate: 20V/μs Typ
  • Common Mode Rejection: 102dB Typ
  • Power Supply Rejection: 105dB Typ
  • Open-Loop Gain: 100V/mV Typ
  • Operating Temperature Range: –40°C to 85°C
  • Single in the 8-Lead SO and 5-Lead Low Profile (1mm) ThinSOT™ Packages
  • Dual in the 8-Lead SO and (3mm × 3mm) DFN Packages
  • Quad in the 16-Lead SSOP Package

Typical Application

LT6221 Typical Application
LT6221 Typical Application


The LT®6220/LT6221/LT6222 are single/dual/quad, low power, high speed rail-to-rail input and output operational amplifiers with excellent DC performance. The LT6220/ LT6221/LT6222 feature reduced supply current, lower input offset voltage, lower input bias current and higher DC gain than other devices with comparable bandwidth.

Typically, the LT6220/LT6221/LT6222 have an input offset voltage of less than 100μV, an input bias current of less than 15nA and an open-loop gain of 100V/mV. The parts have an input range that includes both supply rails and an output that swings within 10mV of either supply rail to maximize the signal dynamic range in low supply applications.

The LT6220/LT6221/LT6222 maintain performance for supplies from 2.2V to 12.6V and are specified at 3V, 5V and ±5V supplies. The inputs can be driven beyond the supplies without damage or phase reversal of the output.

The LT6220 is housed in the 8-lead SO package with the standard op amp pinout as well as the 5-lead SOT-23 package. The LT6221 is available in 8-lead SO and DFN (3mm × 3mm low profile dual fine pitch leadless) packages with the standard op amp pinout. The LT6222 features the standard quad op amp configuration and is available in the 16-lead SSOP package. The LT6220/LT6221/LT6222 can be used as plug-in replacements for many op amps to improve input/output range and 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
LT6221CDD#PBF 3x3 DFN-8 DD C 05-08-1698 Yes
LT6221CDD#TRPBF 3x3 DFN-8 DD C 05-08-1698 Yes
LT6221CS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT6221CS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT6221IDD#PBF 3x3 DFN-8 DD I 05-08-1698 Yes
LT6221IDD#TRPBF 3x3 DFN-8 DD I 05-08-1698 Yes
LT6221IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT6221IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes

LT6221 Package Drawing
LT6221 Package Drawing
LT6221 Package Drawing
LT6221 Package Drawing
LT6221 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
LT6221CDD#PBF 3x3 DFN-8 C $2.71 $2.05 Yes
LT6221CDD#TRPBF 3x3 DFN-8 C $2.11 Yes
LT6221CS8#PBF SO-8 C $2.35 $1.85 Yes
LT6221CS8#TRPBF SO-8 C $1.91 Yes
LT6221IDD#PBF 3x3 DFN-8 I $3.24 $2.45 Yes
LT6221IDD#TRPBF 3x3 DFN-8 I $2.51 Yes
LT6221IS8#PBF SO-8 I $2.98 $2.25 Yes
LT6221IS8#TRPBF SO-8 I $2.31 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.

Click here to view our complete list of demo boards


  • Low Voltage, High Frequency Signal Processing
  • Driving A/D Converters
  • Rail-to-Rail Buffer Amplifiers
  • Active Filters
  • Video Amplifiers
  • Fast Current Sensing Amplifiers

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