LT1194 Video Difference Amplifier FEATURES DESCRIPTIO n Differential or Single-Ended Gain Block: 10 (20dB) The LT 1194 is a video difference amplifier optimized for n 3dB Bandwidth: 35MHz operation on 5V and a single 5V supply. The amplifier has n Slew Rate: 500V/m s a fixed gain of 20dB and features adjustable input limiting n Low Cost to control tough overdrive applications. It has uncommit- n Output Current: 50mA ted high input impedance (+) and () inputs, and can be n Settling Time: 200ns to 0.1% used in differential or single-ended configurations. n CMRR at 10MHz: 45dB The LT1194s high slew rate 500V/m s, wide bandwidth n Differential Gain Error: 0.2% 35MHz, and 50mA output current make it ideal for n Differential Phase Error: 0.08 driving cables directly. This versatile amplifier is easy to n Input Amplitude Limiting use for video or applications requiring speed, accuracy n Single 5V Operation and low cost. n Drives Cables Directly The LT1194 is available in 8-pin PDIP and SO packages. U , LTC and LT are registered trademarks of Linear Technology Corporation. APPLICATIO S n Line Receivers n Video Signal Processing n Gain Limiting n Oscillators n Tape and Disc Drive Systems TYPICAL APPLICATIO Wideband Differential Amplifier with Limiting Sine Wave Reduced by Limiting 250 7pF TO 45pF 4 5V 5V 11 1F 1 8 3 7 V + OUT NE592 INPUT 1V/DIV 2 6 LT1194 OUTPUT 14 7 5 4 1F + 8 5V 5V 1 1k 1k V CONTROL A = 1000, 3dB BW = 35MHz LT1194 TA01 V LT1193 TA02 200kHz SINE WAVE WITH V = 5V, 4V, 3V, 2V CONTROL 1 U ULT1194 ABSOLUTE AXI U RATI GS (Note 1) + Total Supply Voltage (V to V ) .............................. 18V TOP VIEW ORDER PART Differential Input Voltage ........................................ 6V NUMBER BAL/V 1 8 BAL/V C C + Input Voltage .......................................................... V IN 2 7 V S LT1194CN8 Output Short Circuit Duration (Note 2) ........ Continuous +IN 3 6 OUT LT1194CS8 Operating Temperature Range V 4 5 REF LT1194M (OBSOLETE) ............... 55 C to 125 C S8 PART MARKING N8 PACKAGE S8 PACKAGE LT1194C ................................................. 0 C to 70 C 8-LEAD PDIP 8-LEAD PLASTIC SO 1194 Maximum Junction Temperature ......................... 150 C T = 150 C, q = 100 C/W (N8) JMAX JA T = 150 C, q = 150 C/W (S8) JMAX JA Storage Temperature Range ................ 65 C to 150 C LT1194MJ8 J8 PACKAGE 8-LEAD CERDIP Lead Temperature (Soldering, 10 sec)................. 300 C LT1194CJ8 T = 150 C, q = 100 C/W JMAX JA OBSOLETE PACKAGE Consider the N8 or S8 Packages for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS V = 5V, V = 0V, Null Pins 1 and 8 open circuit, T = 25 C, C 10pF, unless otherwise noted. S REF A L LT1194M/C SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage All Packages 1 6 mV OS I Input Offset Current 0.2 3 m A OS I Input Bias Current 0.5 3.5 m A B e Input Noise Voltage f = 10kHz 15 nV/ Hz n O i Input Noise Current f = 10kHz 4 pA/ Hz n O R Input Resistance Either Input 30 kW IN C Input Capacitance Either Input 2 pF IN Input Voltage Range 2.5 3.5 V CMRR Common Mode Rejection Ratio V = 2.5V to 3.5V 65 80 dB CM PSRR Power Supply Rejection Ratio V = 2.375V to 8V 65 80 dB S V Maximum Output Signal V = 8V (Note 3) 3 4.3 V OMAX S V Output Voltage Limit V = 0.5V, V = 2V (Note 4) 20 120 mV LIM i C V Output Voltage Swing V = 8V, V = 4V R = 1k 6.6 6.9 V OUT S REF L R = 100W 6.3 6.7 V L V = 8V, V = 4V R = 1k 6.7 7.4 V S REF L R = 100W 6.4 6.7 V L V = 5V, V = 0V, R = 1k 3 4V S REF L G Gain Error V = 3V R = 1k 0.5 3 % E O L R = 100W 0.5 3 % L SR Slew Rate V = 1V, R = 1k (Notes 5, 9) 350 500 V/m s O L FPBW Full-Power Bandwidth V = 6V (Note 6) 18.5 26.5 MHz O P-P BW Small-Signal Bandwidth 35 MHz t , t Rise Time, Fall Time R = 1k, V = 500mV, 20% to 80% (Note 9) 4 6 8 ns r f L O t Propagation Delay R = 1k, V = 125mV, 50% to 50% 6.5 ns PD L O 2 U WWW