Dual 500mA/50MHz Current Feedback Line Driver Amplifier

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.

Applications

* ADSL HDSL2, G.lite Drivers

* Buffers

* Test Equipment Amplifiers

* Video Amplifiers

* Cable Drivers

* 500mA Output Drive Current

* 50MHz Bandwidth, AV = 2, RL = 25Ω

* 900V/µs Slew Rate, AV= 2, RL = 25Ω

* Low Distortion: −75dBc at 1MHz

* High Input Impedance, 10MΩ

* 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