LT1189 Low Power Video Difference Amplifier DESCRIPTIO FEATURES n Differential or Single-Ended Gain Block (Adjustable) The LT1189 is a difference amplifier optimized for opera- n 3dB Bandwidth, A = 10 35MHz tion on 5V, or a single 5V supply, and gain 10. This V n Slew Rate 220V/s versatile amplifier features uncommitted high input im- n Low Supply Current 13mA pedance (+) and () inputs, and can be used in differential n Output Current 20mA or single-ended configurations. Additionally, a second set n CMRR at 10MHz 48dB of inputs give gain adjustment and DC control to the n LT1193 Pin Out difference amplifier. n Low Cost The LT1189s high slew rate, 220V/s, wide bandwidth, n Single 5V Operation 35MHz, and 20mA output current require only 13mA of n Drives Cables Directly supply current. The shutdown feature reduces the power n Output Shutdown dissipation to a mere 15mW, and allows multiple amplifi- ers to drive the same cable. PPLICATI S A The LT1189 is a low power, gain of 10 stable version of the n Line Receivers popular LT1193, and is available in 8-pin miniDIPs and SO n Video Signal Processing packages. For lower gain applications see the LT1187 n Cable Drivers data sheet. n Tape and Disc Drive Systems TYPICAL APPLICATI Cable Sense Amplifier for Loop Through Connections Closed-Loop Gain vs Frequency with DC Adjust 50 V IN V = 5V S R = 1k L 5V 40 3 + 7 CABLE 2 6 30 LT1189 V OUT 1 V + DC 8 4 20 5V 909 10 100 0 0.1 1 10 100 FREQUENCY (MHz) LT1189 TA01 LT1189 TA02 1 VOLTAGE GAIN (dB) UO UO ULT1189 /O ABSOLUTEXAI U RATI GS PACKAGE RDER I FOR ATIO + Total Supply Voltage (V to V ) ............................. 18V TOP VIEW ORDER PART Differential Input Voltage ........................................ 6V +/REF 1 8 /FB NUMBER Input Voltage .......................................................... V + S 7 IN 2 V Output Short Circuit Duration (Note 1) ........ Continuous LT1189MJ8 +IN 3 6 OUT Operating Temperature Range LT1189CJ8 V 4 5 S/D LT1189M..................................... 55C to 150C LT1189CN8 J8 PACKAGE N8 PACKAGE LT1189C............................................. 0C to 70C 8-LEAD HERMETIC DIP 8-LEAD PLASTIC DIP LT1189CS8 Junction Temperature (Note 2) S8 PACKAGE 8-LEAD PLASTIC SOIC Plastic Package (CN8,CS8) ......................... 150C LT1189 POI01 S8 PART MARKING Ceramic Package (CJ8,MJ8) ....................... 175C T = 175C, = 100C/W (J8) JMAX JA T = 150C, = 100C/W (N8) JMAX JA Storage Temperature Range ................ 65C to 150C 1189 T = 150C, = 150C/W (S8) JMAX JA Lead Temperature (Soldering, 10 sec.)................ 300C + 5V LECTR AL CHARACTERIST T = 25C, (Note 3) E IC ICS A V = 5V, V = 0V, R = 900 from pins 6 to 8, R = 100 from pin 8 to ground, R = R + R = 1k, C 10pF, pin 5 open. S REF FB1 FB2 L FB1 FB2 L LT1189M/C SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage Either Input, (Note 4) 1.0 3.0 mV OS SOIC Package 1.0 4.0 mV I Input Offset Current Either Input 0.2 1.0 A OS I Input Bias Current Either Input 0.5 2.0 A B e Input Noise Voltage f = 10kHz 30 nV/Hz n O i Input Noise Current f = 10kHz 1.25 pA/Hz n O R Input Resistance Differential 30 k IN C Input Capacitance Either Input 2.0 pF IN V Input Voltage Limit (Note 5) 170 mV IN LIM Input Voltage Range 2.5 3.5 V CMRR Common-Mode Rejection Ratio V = 2.5V to 3.5V 80 105 dB CM PSRR Power Supply Rejection Ratio V = 2.375V to 8V 75 90 dB S V Output Voltage Swing V = 5V, R = 1k, A = 50 3.8 4.0 V OUT S L V V = 8V, R = 1k, A = 50 6.7 7.0 S L V V = 8V, R = 300, A = 50, (Note 3) 6.4 6.8 S L V G Gain Error V = 1.0V, A = 10 1.0 3.5 % E O V SR Slew Rate (Note 6, 10) 150 220 V/s FPBW Full Power Bandwidth V = 2V , (Note 7) 35 MHz O P-P BW Small Signal Bandwidth A = 10 35 MHz V t , t Rise Time, Fall Time A = 50, V = 1.5V, 20% to 80% (Note 10) 35 50 75 ns r f V O t Propagation Delay R = 1k, V = 125mV, 50% to 50% 12 ns PD L O Overshoot V = 50mV 10 % O t Settling Time 3V Step, 0.1%, (Note 8) 1 s s Diff A Differential Gain R = 1k, A = 10, (Note 9) 0.6 % V L V Diff Ph Differential Phase R = 1k, A = 10, (Note 9) 0.75 DEG L V P-P I Supply Current 13 16 mA S Shutdown Supply Current Pin 5 at V 0.8 1.5 mA 2 U WU U W W W