DESCRIPTIONThe AD815 consists of two high speed amplifiers capable ofsupplying a minimum of 500 mA. They are typically configuredas a differential driver enabling an output signal of 40 V p-p on 15 V supplies. This can be increased further with the use of acoupling transformer with a greater than 1:1 turns ratio. Thelow harmonic distortion of 66dB @ 1MHz into 200 FEATURESFlexible ConfigurationDifferential Input and Output Driveror Two Single-Ended DriversIndustrial Temperature RangeHigh Output PowerThermally Enhanced SOIC400 mA Minimum Output Drive/Amp, RL = 10 Low Distortion 66 dB @ 1MHz THD, RL = 200 , VOUT = 40 V p-p0.05% and 0.45 Differential Gain and Phase, RL = 25 (6 Back-Terminated Video Loads)High Speed120 MHz Bandwidth ( 3 dB)900 V/ s Differential Slew Rate70 ns Settling Time to 0.1%Thermal ShutdownAPPLICATIONSADSL, HDSL, and VDSL Line Interface DriverCoil or Transformer DriverCRT Convergence and Astigmatism AdjustmentVideo Distribution AmpTwisted Pair Cable DriverFREQUENCY Hz FEATURESFlexible ConfigurationDifferential Input and Output Driveror Two Single-Ended DriversIndustrial Temperature RangeHigh Output PowerThermally Enhanced SOIC400 mA Minimum Output Drive/Amp, RL = 10 Low Distortion 66 dB @ 1MHz THD, RL = 200 , VOUT = 40 V p-p0.05% and 0.45 Differential Gain and Phase, RL = 25 (6 Back-Terminated Video Loads)High Speed120 MHz Bandwidth ( 3 dB)900 V/ s Differential Slew Rate70 ns Settling Time to 0.1%Thermal ShutdownAPPLICATIONSADSL, HDSL, and VDSL Line Interface DriverCoil or Transformer DriverCRT Convergence and Astigmatism AdjustmentVideo Distribution AmpTwisted Pair Cable DriverFREQUENCY Hz 40 50 11010010M1kTOTAL HARMONIC DISTORTION dBc10k100k1M 60 70 80 90 100 VS = 15V G = +10 VOUT = 40V p-p RL = 50 (DIFFERENTIAL) RL = 200 (DIFFERENTIAL)Figure 1. Total Harmonic Distortion vs. FrequencyAMP1+15V 15VRL120 110 499 VOUT =40Vp-pVIN =4Vp-p1/2AD8151/2AD815G = +10100 100 AMP2D =40Vp-p1:2TRANSFORMERR1 = 15 R2 = 15 499 Figure 2. Subscriber Line Differential D SPECIFICATIONS AD815AModelConditionsV SMinTypM