LT1397 - Quad 400MHz Current Feedback Amplifier
Features
- 400MHz Bandwidth on ±5V (AV = 1)
- 350MHz Bandwidth on ±5V (AV = 2, –1)
- 0.1dB Gain Flatness: 100MHz (AV = 1, 2 and –1)
- High Slew Rate: 800V/µs
- Wide Supply Range: ±2V(4V) to ±6V(12V)
- 80mA Output Current
- Low Supply Current: 4.6mA/Amplifier
- LT1395: SO-8, TSOT23-5 and TSOT23-6 Packages
LT1396: SO-8, MSOP and Tiny 3mm × 3mm × 0.75mm DFN-8 Packages
LT1397: SO-14, SSOP-16 and Tiny 4mm × 3mm × 0.75mm DFN-14 Packages - Low Profile (1mm) ThinSOT™ Package
Typical Application
Description
The LT1395/LT1396/LT1397 are single/dual/quad 400MHz current feedback amplifiers with an 800V/µs slew rate and the ability to drive up to 80mA of output current.
The LT1395/LT1396/LT1397 operate on all supplies from a single 4V to ±6V. At ±5V, they draw 4.6mA of supply current per amplifier. The LT1395CS6 also adds a shutdown pin. When disabled, the LT1395CS6 draws virtually zero supply current and its output becomes high impedance. The LT1395CS6 will turn on in only 30ns and turn off in 40ns, making it ideal in spread spectrum and portable equipment applications.
For space limited applications, the LT1395 is available in TSOT-23 packages, the LT1396 is available in a tiny 3mm × 3mm × 0.75mm dual fine pitch leadless DFN package, and the LT1397 is available in a tiny 4mm × 3mm × 0.75mm DFN package.
The LT1395/LT1396/LT1397 are manufactured on Linear Technology’s proprietary complementary bipolar process. They have standard single/dual/quad pinouts and they are optimized for use on supply voltages of ±5V.
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 |
|---|---|---|---|---|---|
| LT1397CDE#PBF | 4x3 DFN-14 | DE | C | 05-08-1708 | Yes |
| LT1397CDE#TRPBF | 4x3 DFN-14 | DE | C | 05-08-1708 | Yes |
| LT1397CGN#PBF | SSOP-16 | GN | C | 05-08-1641 (GN16) | Yes |
| LT1397CGN#TRPBF | SSOP-16 | GN | C | 05-08-1641 (GN16) | Yes |
| LT1397CS#PBF | SO-14 | S | C | 05-08-1610 (S14) | Yes |
| LT1397CS#TRPBF | SO-14 | S | C | 05-08-1610 (S14) | Yes |
| LT1397HDE#PBF | 4x3 DFN-14 | DE | H | 05-08-1708 | Yes |
| LT1397HDE#TRPBF | 4x3 DFN-14 | DE | H | 05-08-1708 | 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 | |
|---|---|---|---|---|---|---|
| LT1397CDE#PBF | 4x3 DFN-14 | C | $2.31 | $1.95 | Yes | |
| LT1397CDE#TRPBF | 4x3 DFN-14 | C | $1.95 | Yes | ||
| LT1397CGN#PBF | SSOP-16 | C | $2.55 | $2.15 | Yes | |
| LT1397CGN#TRPBF | SSOP-16 | C | $2.15 | Yes | ||
| LT1397CS#PBF | SO-14 | C | $2.55 | $2.15 | Yes | |
| LT1397CS#TRPBF | SO-14 | C | $2.15 | Yes | ||
| LT1397HDE#PBF | 4x3 DFN-14 | H | $2.79 | $2.35 | Yes | |
| LT1397HDE#TRPBF | 4x3 DFN-14 | H | $2.35 | 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.Click here to view our complete list of demo boards
Applications
- Cable Drivers
- Video Amplifiers
- MUX Amplifiers
- High Speed Portable Equipment
- IF Amplifiers
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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:
LT1397
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.
