LT1191 Ultrahigh Speed Operational Amplifier FEATURES DESCRIPTIO n Gain Bandwidth Product, A = 1: 90MHz The LT 1191 is a video operational amplifier optimized for V n Slew Rate: 450V/m s operation on 5V and a single 5V supply. Unlike many high n Low Cost speed amplifiers, this amplifier features high open-loop n Output Current: 50mA gain, over 90dB, and the ability to drive heavy loads to a n Settling Time: 110ns to 0.1% full-power bandwidth of 20MHz at 7V . In addition to its P-P n Differential Gain Error: 0.07%, (R = 1k) very fast slew rate, the LT1191 features a unity-gain-stable L n Differential Phase Error: 0.02 , (R = 1k) bandwidth of 90MHz. L n High Open-Loop Gain: 20V/mV Min Because the LT1191 is a true operational amplifier, it is an n Single Supply 5V Operation ideal choice for wideband signal conditioning, fast inte- n Output Shutdown grators, active filters, and applications requiring speed, U accuracy and low cost. APPLICATIO S The LT1191 is available in 8-pin PDIP and SO packages n Video Cable Drivers with standard pinouts. The normally unused Pin 5 is used n Video Signal Processing for a shutdown feature that shuts off the output and n Fast Integrators reduces power dissipation to a mere 15mW. n , LTC and LT are registered trademarks of Linear Technology Corporation. Pulse Amplifiers n D/A Current to Voltage Conversion TYPICAL APPLICATIO Video MUX Cable Driver 5V 7 3 V + IN1 6 Inverter Pulse Response LT1191 2 SHDN CMOS IN 5 CH. SELECT 4 5V 1k 1k 1k CABLE 75W 74HC04 74HC04 75W 1k 5V 5V 5 3 V + IN2 7 SHDN 6 LT1191 LT1190 TA02 2 4 A = 1, C = 10pF SCOPE PROBE V L 5V 1k 1k LT1191 TA01 1 U ULT1191 UUW ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) + Total Supply Voltage (V to V ) ............................. 18V TOP VIEW ORDER PART Differential Input Voltage ........................................ 6V BAL 1 8 BAL NUMBER + Input Voltage .......................................................... V IN 2 7 V S LT1191CN8 Output Short-Circuit Duration (Note 2) ........ Continuous +IN 3 6 OUT LT1191CS8 Operating Temperature Range V 4 5 SHDN S8 PART MARKING LT1191M (OBSOLETE) ............. 55 C to 125 C N8 PACKAGE S8 PACKAGE 8-LEAD PDIP 8-LEAD PLASTIC SO LT1191C............................................... 0 C to 70 C 1191 T = 150 C, q = 100 C/W (N8) JMAX JA Maximum Junction Temperature ......................... 150 C T = 150 C, q = 150 C/W (S8) JMAX JA LT1191MJ8 Storage Temperature Range ................. 65 C to 150 C J8 PACKAGE 8-LEAD CERDIP LT1191CJ8 Lead Temperature (Soldering, 10 sec)................. 300 C 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, T = 25 C, C 10pF, Pin 5 open circuit unless otherwise noted. S A L LT1191M/C SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage N8 Package 1 5 mV OS SO-8 Package 9 mV I Input Offset Current 0.2 1.7 m A OS I Input Bias Current 0.5 2.5 m A B e Input Noise Voltage f = 10kHz 25 nV/ Hz n O i Input Noise Current f = 10kHz 4 pA/ Hz n O R Input Resistance Differential Mode 70 kW IN Common Mode 5 MW C Input Capacitance A = +1 2 pF IN V Input Voltage Range (Note 3) 2.5 3.5 V CMRR Common Mode Rejection Ratio V = 2.5V to 3.5V 60 75 dB CM PSRR Power Supply Rejection Ratio V = 2.375V to 8V 60 75 dB S A Large-Signal Voltage Gain R = 1k, V = 3V 20 45 V/mV VOL L O R = 100W , V = 3V 4 9 V/mV L O V = 8V, R = 100W , V = 5V 6 12 V/mV S L O V Output Voltage Swing V = 5V, R = 1k 3.7 4V OUT S L V = 8V, R = 1k 6.7 7V S L SR Slew Rate A = 2, R = 1k (Notes 4, 9) 325 450 V/m s V L FPBW Full-Power Bandwidth V = 6V (Note 5) 17.2 23.9 MHz O P-P GBW Gain Bandwidth Product 90 MHz t , t Rise Time, Fall Time A = 50, V = 1.5V, 20% to 80% (Note 9) 100 130 160 ns r1 f1 V O t , t Rise Time, Fall Time A = 1, V = 125mV, 10% to 90% 1.25 ns r2 f2 V O t Propagation Delay A = 1, V = 125mV, 50% to 50% 2.2 ns PD V O Overshoot A = 1, V = 125mV 25 % V O t Settling Time 3V Step, 0.1% (Note 6) 110 ns s 2 U WWW