LT1222 - 500MHz, 3nV/rtHz, AV >=10 Operational Amplifier

Features

  • Gain-Bandwidth: 500MHz
  • Gain of 10 Stable Uncompensated
  • Slew Rate: 200V/μs
  • Input Noise Voltage: 3nV/√Hz
  • C-LoadTM Op Amp Drives Capacitive Loads
  • External Compensation Pin
  • Maximum Input Offset Voltage: 300μV
  • Maximum Input Bias Current: 300nA
  • Maximum Input Offset Current: 300nA
  • Minimum Output Swing Into 500Ω: ±12V
  • Minimum DC Gain: 100V/mV, RL = 500Ω
  • Settling Time to 0.1%: 75ns, 10V Step
  • Settling Time to 0.01%: 120ns, 10V Step
  • Differential Gain: 0.4%, AV = 2, RL = 150Ω
  • Differential Phase: 0.1°, AV = 2, RL = 150Ω

Typical Application

LT1222 Typical Application
LT1222 Typical Application

Description

The LT1222 is a low noise, very high speed operational amplifier with superior DC performance. The LT1222 is stable in a noise gain of 10 or greater without compensation, or the part can be externally compensated for lower closed-loop gain at the expense of lower bandwidth and slew rate. It features reduced input offset voltage, lower input bias currents, lower noise and higher DC gain than devices with comparable bandwidth and slew rate. The circuit is a single gain stage that includes proprietary DC gain enhancement circuitry to obtain precision with high speed. The high gain and fast settling time make the circuit an ideal choice for data acquisition systems. The circuit is also capable of driving capacitive loads which makes it useful in buffer or cable driver applications. The compensation node can also be used to clamp the output swing.

The LT1222 is a member of a family of fast, high performance amplifiers that employ Linear Technology Corporation’s advanced complementary bipolar processing. For unity-gain stable applications the LT1220 can be used, and for gains of 4 or greater the LT1221 can be used.

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
LT1222CN8#PBF N-8 N C 05-08-1510 (N8) Yes
LT1222CS8#PBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1222CS8#TRPBF SO-8 S8 C 05-08-1610 (S8) Yes
LT1222IS8#PBF SO-8 S8 I 05-08-1610 (S8) Yes
LT1222IS8#TRPBF SO-8 S8 I 05-08-1610 (S8) Yes


LT1222 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
LT1222CN8#PBF N-8 C $4.17 $3.40 Yes
LT1222CS8#PBF SO-8 C $4.58 $3.65 Yes
LT1222CS8#TRPBF SO-8 C $3.71 Yes
LT1222IS8#PBF SO-8 I $4.70 $3.95 Yes
LT1222IS8#TRPBF SO-8 I $4.01 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
DC1416B LT1222CS8 Demo Board | 500mHz, 3nV/rtHz Operational Amplifier $75.00
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

  • Wideband Amplifiers
  • Buffers
  • Active Filters
  • Video and RF Amplification
  • Cable Drivers
  • 8-, 10-, 12-Bit Data Acquisition Systems

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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

Models for the following parts are available in LTspice:
LT1222

Technical Support