CLC418 Datasheet | National Semiconductor

Description The linear CLC418 dual high-speed current-feedback operational amplifier is designed to drive low-impedance and high capacitance loads while maintaining high signal fidelity. Operating on ±5V power supplies, each of the CLC418’s amplifiers produces a continuous 96m A output current. Into a back-terminated 50Ω load, the devices produce -85/-64d Bc second/third harmonic distortion (Av = +2, Vo = 2Vpp, f = 1MHz). The CLC418’s current-feedback architecture maintains consistent performance over a wide range of gain and signal levels. DC gain and bandwidth can be set independently. With proper resistor selection, either maximally flat gain response or linear phase response can be selected. Requiring a mere 15m W quiescent power per amplifier, the CLC418 offers superior performance-vs-power with a 130MHz small-signal bandwidth, 350V/ms slew rate and quick 4.6ns rise/fall times (2Vstep). The bination of low quiescent power, high output current drive and high performance make the CLC418 a great choice for many battery-powered personal munication/puting systems. bining the CLC418’s two amplifiers (shown below) results in a powerful differential line driver for driving video signals over unshielded twisted-pair (UTP). The CLC418 can also be used for driving differential-input step-up transformers for applications such as Asynchronous Digital Subscriber Lines (ADSL) or High Bit-Rate Digital Subscriber Lines (HDSL). The CLC418’s amplifiers make excellent low-power highresolution A-to-D converter drivers with their very fast 15ns settling time (to 0.2%) and ultra-low -85/-75d Bc harmonic distortion (Av = +2, Vo = 2Vpp, f = 1MHz, RL = 1kΩ). Features s s s s s s s 130MHz bandwidth (Av = +2) 96m A output current 1.5m A supply current -85/-75d Bc HD2/HD3 15ns settling to 0.2% -74d Bc input-referred crosstalk (5MHz) Single version available (CLC408) ADSL/HDSL driver Coaxial cable driver UTP differential line driver Transformer/coil driver High capacitive-load driver Video line...