LT1221 150MHz, 250V/m s, A 4 V Operational Amplifier FEATURES DESCRIPTIO n Gain-Bandwidth: 150MHz The LT 1221 is a very high speed operational amplifier n Gain of 4 Stable with superior DC performance. The LT1221 is stable in a n Slew Rate: 250V/m s noise gain of 4 or greater. It features reduced input offset n Input Noise Voltage: 6nV/ Hz voltage, lower input bias currents and higher DC gain than TM n C-Load Op Amp Drives Capacitive Loads devices with comparable bandwidth and slew rate. The n Maximum Input Offset Voltage: 600m V circuit is a single gain stage that includes proprietary DC n Maximum Input Bias Current: 300nA gain enhancement circuitry to obtain precision with high n Maximum Input Offset Current: 300nA speed. The high gain and fast settling time make the circuit n Minimum Output Swing Into 500W : 12V an ideal choice for data acquisition systems. The circuit is n Minimum DC Gain: 50V/mV, R = 500W also capable of driving capacitive loads which makes it L n Settling Time to 0.1%: 65ns, 10V Step useful in buffer or cable driver applications. n Settling Time to 0.01%: 85ns, 10V Step The LT1221 is a member of a family of fast, high perfor- n Differential Gain: 0.08%, A = 4, R = 150W V L mance amplifiers that employ Linear Technology n Differential Phase: 0.2 , A = 4, R = 150W V L Corporations advanced complementary bipolar process- U ing. For unity-gain stable applications the LT1220 can be APPLICATIO S used, and for gains of 10 or greater the LT1222 can be used. n Wideband Amplifiers , LTC and LT are registered trademarks of Linear Technology Corporation n C-Load is a trademark of Linear Technology Corporation Buffers n Active Filters n Video and RF Amplification n Cable Drivers n 8-, 10-, 12-Bit Data Acquisition Systems TYPICAL APPLICATIO Summing Amplifier Large-Signal Response Summing Amplifier 1k 1k V A 1k V B V LT1221 OUT 1k V C + LT1221 TA01 LT1221 TA02 V = 15V f = 2MHz S V = 10V IN P-P 1 U ULT1221 AB OLUEXAI U RAT GS (Note 1) S T I + Total Supply Voltage (V to V ) ............................. 36V Operating Temperature Range Differential Input Voltage ........................................ 6V LT1221C ........................................... 40 C TO 85 C Input Voltage .......................................................... V LT1221M (OBSOLETE) ............... 55 C to 125 C S Output Short-Circuit Duration (Note 2) ........... Indefinite Maximum Junction Temperature (See Below) Specified Temperature Range Plastic Package ............................................... 150 C LT1221C (Note 3) ................................... 0 C to 70 C Ceramic Package (OBSOLETE) .................. 175 C LT1221M (OBSOLETE) ............... 55 C to 125 C Storage Temperature Range ................ 65 C to 150 C Lead Temperature (Soldering, 10 sec)................. 300 C / PACKAGE ORDER I FOR ATIO TOP VIEW ORDER PART ORDER PART TOP VIEW NULL NUMBER NUMBER NULL 1 8 NULL 8 + + IN 2 7 V NULL 1 7 V LT1221CN8 SPECIAL +IN 3 6 V OUT LT1221CS8 ORDER IN 2 6 V OUT V 4 5 NC CONSULT S8 PART MARKING 3 5 NC +IN N8 PACKAGE S8 PACKAGE FACTORY 4 8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC 1221 V T = 150 C, q = 130 C/W (N) JMAX JA H PACKAGE T = 150 C, q = 190 C/W (S) JMAX JA 8-LEAD TO-5 METAL CAN J8 PACKAGE T = 175 C, q = 150 C/W ORDER PART 8-LEAD CERAMIC DIP JMAX JA T = 175 C, q = 100 C/W (J) JMAX JA NUMBER LT1221MJ8 OBSOLETE PACKAGE Consider the N8 or S8 Package for Alternate Source OBSOLETE PACKAGE Consider the N8 Package for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. T = 25 C, V = 15V, T = 25 C, V = 0V, unless otherwise specified. ELECTRICAL CHARACTERISTICS A S A CM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage (Note 4) 200 600 m V OS I Input Offset Current 100 300 nA OS I Input Bias Current 100 300 nA B e Input Noise Voltage f = 10kHz 6 nV/ Hz n i Input Noise Current f = 10kHz 2 pA/ Hz n R Input Resistance V = 12V 20 45 MW IN CM Differential 80 kW C Input Capacitance 2pF IN Input Voltage Range (Positive) 12 14 V Input Voltage Range (Negative) 13 12 V CMRR Common Mode Rejection Ratio V = 12V 92 114 dB CM PSRR Power Supply Rejection Ratio V = 5V to 15V 90 110 dB S A Large-Signal Voltage Gain V = 10V, R = 500W 50 100 V/mV VOL OUT L V Output Swing R = 500W 12 13 V OUT L I Output Current V = 12V 24 26 mA OUT OUT SR Slew Rate (Note 5) 200 250 V/m s Full Power Bandwidth 10V Peak (Note 6) 4 MHz GBW Gain-Bandwidth f = 1MHz 150 MHz 2 U WU U W W W