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
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 |
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 | ||
| Buy Now • Request Samples | ||||||
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 | |||
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
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
