LT1794 - Dual 500mA, 200MHz xDSL Line Driver Amplifier

The outputs drive a 100 Ohms load to ±11.1V with ±12V supplies, and ±10.9V with a 250mA load. The LT1794, with its increased swing on lower supplies, can be used to upgrade LT1795 line driver applications.

The LT1794 is available in the very small, thermally enhanced, 20-lead TSSOP for maximum port density in line driver applications. The 20-lead SW is also available.

Features
  • Exceeds All Requirements For Full Rate, Downstream ADSL Line Drivers
  • ±500mA Minimum Iout
  • ±11.1V Output Swing, VS = ±12V, RL = 100 Ohms
  • ±10.9V Output Swing, VS = ±12V, IL = 250mA
  • Low Distortion: –82dBc at 1MHz, 2Vp-p Into 100 Ohms
  • Power Saving Adjustable Supply Current
  • Power Enhanced Small Footprint Packages:20-Lead TSSOP and 20-Lead SW
  • 200MHz Gain Bandwidth
  • 500V/µs Slew Rate
  • Specified at ±15V, ±12V and ±5V
Typical Application
LT1794 Typical Application
Applications
  • High Density ADSL Central Office Line Drivers
  • High Efficiency ADSL, HDSL2, G.lite, SHDSL Line Drivers
  • Buffers
  • Test Equipment Amplifiers
  • Cable Drivers
Packaging
LT1794 Package Drawing
LT1794 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT1794CFE#PBFTSSOP-20C$6.50$5.50
LT1794CFE#TRPBFTSSOP-20C$5.60
LT1794CSW#PBFSW-20C$5.85$4.95
LT1794CSW#TRPBFSW-20C$5.05
LT1794IFE#PBFTSSOP-20I$7.15$5.95
LT1794IFE#TRPBFTSSOP-20I$6.05
LT1794ISW#PBFSW-20I$6.95$5.80
LT1794ISW#TRPBFSW-20I$5.90
Datasheet
Reliability Data
Product Selector Card
LT Journal
CAD Symbol
Related Products
LT1794 - Dual 500mA, 200MHz xDSL Line Driver Amplifier
LT1794 - Dual 500mA, 200MHz xDSL Line Driver Amplifier
R412 Reliability Data
High Voltage Amplifiers
May 2001 Simple Logic Provides Sensible Power Control of LT1794-Based ADSL Line Drivers
LT1794 Footprints and Symbols