LT1795 - Dual 500mA/50MHz Current Feedback Line Driver Amplifier

Features

  • 500mA Output Drive Current
  • 50MHz Bandwidth, AV = 2, RL = 25 Ohms
  • 900V/µs Slew Rate, AV= 2, RL = 25 Ohms
  • Low Distortion: -75dBc at 1MHz
  • High Input Impedance, 10MOhms
  • Wide Supply Range, ±5V to ±15V
  • Full Rate, Downstream ADSL Supported
  • Low Power Shutdown Mode
  • Power Saving Adjustable Supply Current
  • Stable with CL = 10,000pF
  • Power Enhanced Small Footprint Packages TSSOP-20, S0-20 Wide
  • Available in a 20-Lead TSSOP Package

Typical Application

LT1795 Typical Application

Description

The LT1795 is a dual current feedback amplifier with high output current and excellent large signal characteristics. The combination of high slew rate, 500mA output drive and up to ±15V operation enables the device to deliver significant power at frequencies in the 1MHz to 2MHz range. Short-circuit protection and thermal shutdown insure the device’s ruggedness. The LT1795 is stable with large capacitive loads and can easily supply the large currents required by the capacitive loading. A shutdown feature switches the device into a high impedance, low current mode, reducing power dissipation when the device is not in use. For lower bandwidth applications, the supply current can be reduced with a single external resistor.

The LT1795 comes in the very small, thermally enhanced, 20-lead TSSOP package for maximum port density in line driver applications.

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
LT1795CFE#PBF TSSOP-20 FE C 05-08-1663 (CA) Yes
LT1795CFE#TRPBF TSSOP-20 FE C 05-08-1663 (CA) Yes
LT1795CSW#PBF SW-20 SW C 05-08-1620 (SW20) Yes
LT1795CSW#TRPBF SW-20 SW C 05-08-1620 (SW20) Yes
LT1795IFE#PBF TSSOP-20 FE I 05-08-1663 (CA) Yes
LT1795IFE#TRPBF TSSOP-20 FE I 05-08-1663 (CA) Yes
LT1795ISW#PBF SW-20 SW I 05-08-1620 (SW20) Yes
LT1795ISW#TRPBF SW-20 SW I 05-08-1620 (SW20) Yes


LT1795 Package Drawing
LT1795 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
LT1795CFE#PBF TSSOP-20 C $6.50 $5.50 Yes
LT1795CFE#TRPBF TSSOP-20 C $5.63 Yes
LT1795CSW#PBF SW-20 C $5.95 $4.95 Yes
LT1795CSW#TRPBF SW-20 C $5.05 Yes
LT1795IFE#PBF TSSOP-20 I $6.85 $5.95 Yes
LT1795IFE#TRPBF TSSOP-20 I $6.18 Yes
LT1795ISW#PBF SW-20 I $6.95 $5.80 Yes
LT1795ISW#TRPBF SW-20 I $5.90 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
DC261A-A LT1795CSW | High-Speed Modem, Differential Line Driver/Receiver $100.00
DC306A-A LT1795CFE, LT1361CS8 | ADSL Line Driver / Receiver $100.00
Buy Now
Click here to view our complete list of demo boards

Applications

  • ADSL HDSL2, G.lite Drivers
  • Buffers
  • Test Equipment Amplifiers
  • Video Amplifiers
  • Cable Drivers

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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:
LT1795

Technical Support