LT1222 500MHz, 3nV/Hz, A 10 V Operational Amplifier FEATURES DESCRIPTIO Gain-Bandwidth: 500MHz The LT 1222 is a low noise, very high speed operational Gain of 10 Stable Uncompensated amplifier with superior DC performance. The LT1222 is Slew Rate: 200V/s stable in a noise gain of 10 or greater without compensa- Input Noise Voltage: 3nV/Hz tion, or the part can be externally compensated for lower TM C-Load Op Amp Drives Capacitive Loads closed-loop gain at the expense of lower bandwidth and External Compensation Pin slew rate. It features reduced input offset voltage, lower Maximum Input Offset Voltage: 300V input bias currents, lower noise and higher DC gain than Maximum Input Bias Current: 300nA devices with comparable bandwidth and slew rate. The Maximum Input Offset Current: 300nA circuit is a single gain stage that includes proprietary DC Minimum Output Swing Into 500: 12V gain enhancement circuitry to obtain precision with high Minimum DC Gain: 100V/mV, R = 500 speed. The high gain and fast settling time make the circuit L Settling Time to 0.1%: 75ns, 10V Step an ideal choice for data acquisition systems. The circuit is Settling Time to 0.01%: 120ns, 10V Step also capable of driving capacitive loads which makes it Differential Gain: 0.4%, A = 2, R = 150 useful in buffer or cable driver applications. The compen- V L Differential Phase: 0.1, A = 2, R = 150 sation node can also be used to clamp the output swing. V L U The LT1222 is a member of a family of fast, high perfor- APPLICATIO S mance amplifiers that employ Linear Technology Wideband Amplifiers Corporations advanced complementary bipolar process- Buffers ing. For unity-gain stable applications the LT1220 can be Active Filters used, and for gains of 4 or greater the LT1221 can be used. Video and RF Amplification LT, LTC and LTM are registered trademarks of Linear Technology Corporation. C-Load is a trademark of Linear Technology Corporation. Cable Drivers 8-, 10-, 12-Bit Data Acquisition Systems TYPICAL APPLICATIO A = 10 with Output Clamping A = 1, C = 30pF Pulse Response V V C 15V 3k 1N5711 1N5711 1N4148 0.1F 3 5 V + IN 6 LT1222 V 0.5V OUT 2 909 100 LT1222 TA01 LT1222 TA02 R = R = 1k V = 100mV F G IN V = 15V f = 5MHz S 1222fc 1 U ULT1222 ABSOLUTEXAI U RATI GS (Note 1) + Total Supply Voltage (V to V ) ............................. 36V Operating Temperature Range Differential Input Voltage ........................................ 6V LT1222C ........................................... 40C TO 85C Input Voltage .......................................................... V LT1222I ...............................................40C to 85C S Output Short-Circuit Duration (Note 2) ........... Indefinite LT1222M (OBSOLETE) ............... 55C to 125C Specified Temperature Range Maximum Junction Temperature (See Below) LT1222C (Note 3) ................................... 0C to 70C Plastic Package ............................................... 150C LT1222I ...............................................40C to 85C Ceramic Package (OBSOLETE) .................. 175C LT1222M (OBSOLETE) ............... 55C to 125C Storage Temperature Range ................ 65C to 150C Lead Temperature (Soldering, 10 sec)................. 300C PACKAGE/ORDER I FOR ATIO TOP VIEW ORDER PART ORDER PART TOP VIEW NUMBER NUMBER NULL 1 NULL 8 NULL + IN 2 7 V LT1222CN8 8 + SPECIAL V NULL 1 7 +IN 3 V 6 LT1222CS8 OUT ORDER IN 2 6 V 4 5 COMP LT1222IS8 V OUT CONSULT S8 PART MARKING N8 PACKAGE S8 PACKAGE 3 5 COMP +IN FACTORY 8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC 4 1222 T = 150C, = 130C/W (N) JMAX JA V T = 150C, = 190C/W (S) 1222I JMAX JA H PACKAGE J8 PACKAGE 8-LEAD TO-5 METAL CAN ORDER PART 8-LEAD CERAMIC DIP T = 175C, = 150C/W JMAX JA T = 175C, = 100C/W (J) NUMBER JMAX JA LT1222MJ8 OBSOLETE PACKAGE OBSOLETE PACKAGE Consider the N8 or S8 Packages for Alternate Source Consider the N8 or S8 Packages for Alternate Source Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS T = 25C, V = 15V, V = 0V, unless otherwise specified. A S CM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage (Note 4) 100 300 V OS I Input Offset Current 100 300 nA OS I Input Bias Current 100 300 nA B e Input Noise Voltage f = 10kHz 3 nV/Hz n i Input Noise Current f = 10kHz 2 pA/Hz n R Input Resistance V = 12V 20 45 M IN CM Differential 12 k 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 100 120 dB CM PSRR Power Supply Rejection Ratio V = 5V to 15V 98 110 dB S A Large-Signal Voltage Gain V = 10V, R = 500 100 200 V/mV VOL OUT L V Output Swing R = 500 12 13 V OUT L I Output Current V = 12V 24 26 mA OUT OUT SR Slew Rate (Note 5) 150 200 V/s Full Power Bandwidth 10V Peak (Note 6) 3.2 MHz GBW Gain-Bandwidth f = 1MHz 500 MHz 1222fc 2 U WU U W W W