
Linear Technology
DESCRIPTION
The LT®1795 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.
FEATURES
■ 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
APPLICATIONS
■ ADSL HDSL2, G.lite Drivers
■ Buffers
■ Test Equipment Amplifiers
■ Video Amplifiers
■ Cable Drivers