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

LT1397 Typical Application
LT1397 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


LT1397 Package Drawing
LT1397 Package Drawing
LT1397 Package Drawing
LT1397 Package Drawing
LT1397 Package Drawing
LT1397 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
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
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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.

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