LT1795 Datasheet | Linear Technology

Features s s s s s s s s LT1795 Dual 500m A/50MHz Current Feedback Line Driver Amplifier DESCRIPTIO The LT®1795 is a dual current feedback amplifier with high output current and excellent large signal characteristics. The bination of high slew rate, 500m A 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 es in the very small, thermally enhanced, 20-lead TSSOP package for maximum port density in line driver applications. , LTC and LT are registered trademarks of Linear Technology Corporation. s s s U APPLICATIO S s s s s s 500m A Output Drive Current 50MHz Bandwidth, AV = 2, RL = 25Ω 900V/µs Slew Rate, AV = 2, RL = 25Ω Low Distortion: - 75d Bc at 1MHz High Input Impedance, 10MΩ Wide Supply Range, ±5V to ±15V Full Rate, Downstream ADSL Supported Power Enhanced Small Footprint Packages TSSOP-20, S0-20 Wide Low Power Shutdown Mode Power Saving Adjustable Supply Current Stable with CL = 10,000p F ADSL HDSL2, G.lite Drivers Buffers Test Equipment Amplifiers Video Amplifiers Cable Drivers TYPICAL APPLICATION Low Loss, High Power Central Office ADSL Line Driver V+ +IN + 1/2 LT1795 12.5Ω - 1k 1:2- 165Ω 1k 100Ω - 1/2 LT1795 - IN 12.5Ω + V- 1795 TA01 - MID 50215 OR EQUIVALENT ABSOLUTE AXI U RATI GS Supply Voltage ...................................................... ±18V Input Current ...................................................... ±15m A Output Short-Circuit Duration (Note 2) ............ Indefinite Operating...