LT1226 Low Noise Very High Speed Operational Amplifier DESCRIPTIO FEATURES n Gain of 25 Stable The LT1226 is a low noise, very high speed operational n 1GHz Gain Bandwidth amplifier with excellent DC performance. The LT1226 n 400V/s Slew Rate features low input offset voltage and high DC gain. The n 2.6nV/Hz Input Noise Voltage circuit is a single gain stage with outstanding settling n 50V/mV Minimum DC Gain, R = 500 characteristics. The fast settling time makes the circuit an L n 1mV Maximum Input Offset Voltage ideal choice for data acquisition systems. The output is n 12V Minimum Output Swing into 500 capable of driving a 500 load to 12V with 15V supplies n Wide Supply Range 2.5V to 15V and a 150 load to 3V on 5V supplies. The circuit is also n 7mA Supply Current capable of driving large capacitive loads which makes it n 100ns Settling Time to 0.1%, 10V Step useful in buffer or cable driver applications. n Drives All Capacitive Loads The LT1226 is a member of a family of fast, high per- formance amplifiers that employ Linear Technology APPLICATI S Corporations advanced bipolar complementary processing. n Wideband Amplifiers n Buffers n Active Filters n Video and RF Amplification n Cable Drivers n Data Acquisition Systems TYPICAL APPLICATI Photodiode Preamplifier, A = 5.1k, BW = 15MHz Gain of +25 Pulse Response V + V + LT1226 51 5.1k 51 LT1226 TA01 LT1226 TA02 1 O U UO ULT1226 /O ABSOLUTEXAI U RATI GS PACKAGE RDER I FOR ATIO + Total Supply Voltage (V to V ) ............................... 36V ORDER PART Differential Input Voltage ......................................... 6V TOP VIEW NUMBER Input Voltage ............................................................V S 1 8 NULL NULL LT1226CN8 Output Short Circuit Duration (Note 1) ............ Indefinite + V IN 2 7 LT1226CS8 Operating Temperature Range 3 6 OUT +IN LT1226C................................................ 0C to 70C 5 NC 4 V S8 PART MARKING Maximum Junction Temperature N8 PACKAGE S8 PACKAGE Plastic Package .............................................. 150C 8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC 1226 LT1226 PO01 Storage Temperature Range ................. 65C to 150C Lead Temperature (Soldering, 10 sec.)................. 300C ELECTRICAL CHARACTERISTICS V = 15V, T = 25C, V = 0V unless otherwise noted. S A CM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage (Note 2) 0.3 1.0 mV OS I Input Offset Current 100 400 nA OS I Input Bias Current 48 A B e Input Noise Voltage f = 10kHz 2.6 nV/Hz n i Input Noise Current f = 10kHz 1.5 pA/Hz n R Input Resistance V = 12V 24 40 M IN CM Differential 15 k C Input Capacitance 2pF IN Input Voltage Range + 12 14 V Input Voltage Range 13 12 V CMRR Common-Mode Rejection Ratio V = 12V 94 103 dB CM PSRR Power Supply Rejection Ratio V = 5V to 15V 94 110 dB S A Large Signal Voltage Gain V = 10V, R = 500 50 150 V/mV VOL OUT L V Output Swing R = 500 12.0 13.3 V OUT L I Output Current V = 12V 24 40 mA OUT OUT SR Slew Rate (Note 3) 250 400 V/s Full Power Bandwidth 10V Peak, (Note 4) 6.4 MHz GBW Gain Bandwidth f = 1MHz 1 GHz t , t Rise Time, Fall Time A = + 25,10% to 90%, 0.1V 5.5 ns r f VCL Overshoot A = +25, 0.1V 35 % VCL Propagation Delay 50% V to 50% V 5.5 ns IN OUT t Settling Time 10V Step, 0.1%, A = 25 100 ns s V Differential Gain f = 3.58MHz, A = +25, R = 150 0.7 % V L Differential Phase f = 3.58MHz, A = +25, R = 150 0.6 Deg V L R Output Resistance A = +25, f = 1MHz 3.1 O VCL I Supply Current 79 mA S 2 U WU U W W W