LT1398/LT1399/LT1399HV Low Cost Dual and Triple 300MHz Current Feedback Amplifiers with Shutdown FEATURES DESCRIPTIO n 300MHz Bandwidth on 5V (A = 1, 2 and 1) V The LT 1399 and LT1399HV contain three independent n 0.1dB Gain Flatness: 150MHz (A = 1, 2 and 1) V 300MHz current feedback amplifiers, each with a shut- n Completely Off in Shutdown, 0m A Supply Current down pin. The LT1399HV is a higher voltage version of the n High Slew Rate: 800V/m s LT1399. The LT1398 is a two amplifier version of the n Wide Supply Range: LT1399. 2V(4V) to 6V(12V) (LT1398/LT1399) The LT1398/LT1399 operate on all supplies from a single 2V (4V) to 7.5V (15V) (LT1399HV) 4V to 6V. The LT1399HV operates on all supplies from 4V n 80mA Output Current to 7.5V. n Low Supply Current: 4.6mA/Amplifier n Fast Turn-On Time: 30ns Each amplifier draws 4.6mA when active. When disabled n Fast Turn-Off Time: 40ns each amplifier draws zero supply current and its output be- n 16-Pin Narrow SO/Narrow SSOP Packages comes high impedance. The amplifiers turn on in only 30ns U and turn off in 40ns, making them ideal in spread spectrum APPLICATIO S and portable equipment applications. n RGB Cable Drivers The LT1398/LT1399/LT1399HV are manufactured on Lin- n LCD Drivers ear Technologys proprietary complementary bipolar pro- n Spread Spectrum Amplifiers cess. The LT1399/LT1399HV are pin-for-pin upgrades to n MUX Amplifiers the LT1260 optimized for use on 5V/ 7.5V supplies. n , LTC and LT are registered trademarks of Linear Technology Corporation. Composite Video Cable Drivers n Portable Equipment TYPICAL APPLICATIO 3-Input Video MUX Cable Driver CHANNEL A BC SELECT EN A Square Wave Response V + IN A 97.6W R G 1/3 LT1399 200W 75W R F CABLE 324W V OUT OUTPUT EN B 200mV/DIV 75W V + IN B 97.6W R G 1/3 LT1399 200W R F 324W 1398/99 TA02 R = 100W TIME (10ns/DIV) L R = R = 324W F G EN C f = 10MHz V + IN C 97.6W R 1399 TA01 G 1/3 LT1399 200W R F 324W sn13989 13989fas 1 U ULT1398/LT1399/LT1399HV (Note 1) ABSOLUTEXAI U RATI GS + Total Supply Voltage (V to V ) Output Short-Circuit Duration (Note 3) ........ Continuous LT1398/LT1399 ................................................ 12.6V Operating Temperature Range (Note 9)... 40 C to 85 C LT1399HV ....................................................... 15.5V Specified Temperature Range (Note 4) .. 40 C to 85 C Input Current (Note 2) ....................................... 10mA Storage Temperature Range ................ 65 C to 150 C Output Current ................................................. 100mA Junction Temperature (Note 5)............................ 150 C Differential Input Voltage (Note 2) ........................... 5V Lead Temperature (Soldering, 10 sec)................. 300 C PACKAGE/ORDER I FOR ATIO TOP VIEW ORDER PART ORDER PART TOP VIEW NUMBER NUMBER 1 EN R IN R 16 1 16 EN A IN A R A 2 OUT R +IN R 15 2 15 OUT A +IN A LT1398CS LT1399CGN + 3 V + *GND 14 3 14 V *GND LT1399CS 4 EN G IN G 13 4 GND* *GND 13 G LT1399HVCS 5 OUT G +IN G 12 5 GND* *GND 12 LT1399IGN 6 V *GND 11 6 V *GND 11 LT1399IS 7 OUT B +IN B 10 7 OUT B +IN B 10 B B 8 EN B IN B 9 GN PART MARKING 8 EN B IN B 9 GN PACKAGE S PACKAGE S PACKAGE 1399 16-LEAD PLASTIC SSOP 16-LEAD PLASTIC SO 16-LEAD PLASTIC SO T = 150 C, q = 120 C/W (GN) 1399I JMAX JA T = 150 C, q = 100 C/W JMAX JA T = 150 C, q = 100 C/W (S) JMAX JA *Ground pins are not internally connected. For best channel isolation, connect to ground. Consult factory for parts specified with wider operating temperature ranges. (LT1398/LT1399) ELECTRICAL CHARACTERISTICS The l denotes specifications which apply over the specified operating temperature range, otherwise specifications are at T = 25 C. A For each amplifier: V = 0V, V = 5V, EN = 0V, pulse tested, unless otherwise noted. (Note 4) CM S SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage 1.5 10 mV OS l 12 mV D V /D T Input Offset Voltage Drift l 15 m V/ C OS + I Noninverting Input Current 10 25 m A IN l 30 m A I Inverting Input Current 10 50 m A IN l 60 m A e Input Noise Voltage Density f = 1kHz, R = 1k, R = 10W , R = 0W 4.5 nV/ Hz n F G S +i Noninverting Input Noise Current Density f = 1kHz 6 pA/ Hz n i Inverting Input Noise Current Density f = 1kHz 25 pA/ Hz n R Input Resistance V = 3.5V l 0.3 1 MW IN IN C Input Capacitance Amplifier Enabled 2.0 pF IN Amplifier Disabled 2.5 pF C Output Capacitance Amplifier Disabled 8.5 pF OUT V Input Voltage Range, High V = 5V l 3.5 4.0 V INH S V = 5V, 0V 4.0 V S sn13989 13989fas 2 U WU U W W W