LT1217 Low Power 10MHz Current Feedback Amplifier DESCRIPTIO FEATURES n 1mA Quiescent Current The LT1217 is a 10MHz current feedback amplifier with DC n 50mA Output Current (Minimum) characteristics better than many voltage feedback ampli- n 10MHz Bandwidth fiers. This versatile amplifier is fast, 280ns settling to 0.1% n 500V/s Slew Rate for a 10V step thanks to its 500V/s slew rate. The LT1217 n 280ns Settling Time to 0.1% is manufactured on Linear Technologys proprietary n Wide Supply Range, 5V to 15V complementary bipolar process resulting in a low 1mA n 1mV Input Offset Voltage quiescent current. To reduce power dissipation further, n 100nA Input Bias Current the LT1217 can be turned off, eliminating the load current n 100M Input Resistance and dropping the supply current to 350A. The LT1217 is excellent for driving cables and other low impedance loads thanks to a minimum output drive cur- PPLICATI S A rent of 50mA. Operating on any supplies from 5V to 15V allows the LT1217 to be used in almost any system. Like n Video Amplifiers other current feedback amplifiers, the LT1217 has high n Buffers gain bandwidth at high gains. The bandwidth is over 1MHz n IF and RF Amplification at a gain of 100. n Cable Drivers n 8, 10, 12-Bit Data Acquisition Systems The LT1217 comes in the industry standard pinout and can upgrade the performance of many older products. TYPICAL APPLICATI Cable Driver Voltage Gain vs Frequency 60 V + IN 75 50 V = 15V S LT1217 R = 3k R = 30 F G 40 R = 100 L R = 100 G 75 30 R CABLE F R = 330 G 3k 20 R = 1.3k G V 10 OUT R = R G G 0 3k 75 10 20 R F 100k 1M 10M 100M A = 1 + V R G FREQUENCY (Hz) AT AMPLIFIER OUTPUT. LT1217 TA02 6dB LESS AT V . OUT LT1217 TA01 1 AMPLIFIER VOLTAGE GAIN (dB) UO UO ULT1217 /O ABSOLUTEXAI U RATI GS PACKAGE RDER I FOR ATIO Supply Voltage ...................................................... 18V ORDER PART TOP VIEW Input Current ...................................................... 10mA NUMBER NULL 1 8 SHUTDOWN Input Voltage ............................ Equal to Supply Voltage + IN 2 7 V LT1217CN8 Output Short Circuit Duration (Note 1) .........Continuous +IN 3 6 OUT LT1217CS8 Operating Temperature Range ..................... 0C to 70C V 4 5 NULL Storage Temperature Range ................. 65C to 150C S8 PART MARKING N8 PACKAGE S8 PACKAGE Junction Temperature........................................... 150C 8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC 1217 LT1217 POI01 Lead Temperature (Soldering, 10 sec.)................. 300C ELECTRICAL CHARACTERISTICS V = 15V, T = 0C to 70C unless otherwise noted. S A SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage V = 0V l 1 3mV OS CM I Non-Inverting Input Current V = 0V l 100 500 nA IN+ CM I Inverting Input Current V = 0V l 100 500 nA IN CM e Input Noise Voltage Density f = 1kHz, R = 1k, R = 10 6.5 nV/Hz n F G i Input Noise Current Density f = 1kHz, R = 1k, R = 10 0.7 pA/Hz n F G R Input Resistance V = 10V l 20 100 M IN IN C Input Capacitance 1.5 pF IN Input Voltage Range l 10 12 V CMRR Common Mode Rejection Ratio V = 10V l 60 66 dB CM Inverting Input Current Common Mode Rejection V = 10V l 5 20 nA/V CM PSRR Power Supply Rejection Ratio V = 4.5V to 18V l 68 76 dB S Non-Inverting Input Current Power Supply Rejection V = 4.5V to 18V l 2 20 nA/V S Inverting Input Current Power Supply Rejection V = 4.5V to 18V l 10 50 nA/V S A Large Signal Voltage Gain R = 2k, V = 10V l 90 105 dB V LOAD OUT R = 400, V = 10V l 70 dB LOAD OUT R Transresistance, V /I R = 2k, V = 10V l 545 M OL OUT IN LOAD OUT R = 400, V = 10V l 1.5 M LOAD OUT V Output Swing R = 2k l 12 13 V OUT LOAD R = 200 l 10 V LOAD I Output Current R = 0 l 50 100 mA OUT LOAD SR Slew Rate (Note 2, 3) R = 3k, R = 3k l 100 500 V/s F G BW Bandwidth R = 3k, R = 3k, V = 100mV 10 MHz F G OUT t Rise Time, Fall Time (Note 3) R = 3k, R = 3k, V = 1V l 30 40 ns r F G OUT t Propagation Delay R = 3k, R = 3k, V = 1V 25 ns PD F G OUT Overshoot R = 3k, R = 3k, V = 1V 5 % F G OUT t Settling Time, 0.1% R = 3k, R = 3k, V = 10V 280 ns s F G OUT I Supply Current V = 0V l 12 mA S IN Supply Current, Shutdown Pin 8 Current = 50A l 350 1000 A The l denotes specifications which apply over the operating temperature Note 2: Non-Inverting operation, V = 10V, measured at 5V. OUT range. Note 3: AC parameters are 100% tested on the plastic DIP packaged parts Note 1: A heat sink may be required. (N suffix), and are sample tested on every lot of the SO packaged parts (S suffix). 2 U WU U W W W