LT1204 4-Input Video Multiplexer with 75MHz Current Feedback Amplifier DESCRIPTIO EA U F T RES n 0.1dB Gain Flatness > 30MHz The LT 1204 is a 4-input video multiplexer designed to n Channel Separation at 10MHz: 90dB drive 75W cables and easily expand into larger routing n 40mV Switching Transient, Input Referred systems. Wide bandwidth, high slew rate, and low differ- n 3dB Bandwidth, A = 2, R = 150W : 75MHz V L ential gain and phase make the LT1204 ideal for broadcast n Channel-to-Channel Switching Time: 120ns quality signal routing. Channel separation and disable n Easy to Expand for More Inputs isolation are greater than 90dB up to 10MHz. The channel- n Large Input Range: 6V to-channel output switching transient is only 40mV , P-P n 0.04% Differential Gain, R = 150W L with a 50ns duration, making the transition imperceptible n 0.06 Differential Phase, R = 150W L on high quality monitors. n High Slew Rate: 1000V/m s A unique feature of the LT1204 is its ability to expand into n Output Swing, R = 400W : 13V L larger routing matrices. This is accomplished by a patent n Wide Supply Range: 5V to 15V pending circuit that bootstraps the feedback resistors in the disable condition, raising the true output impedance of PP IC I A L AT S the circuit. The effect of this feature is to eliminate cable misterminations in large systems. n Broadcast Quality Video Multiplexing n Large Matrix Routing The large input and output signal levels supported by the n Medical Imaging LT1204 when operated on 15V supplies make it ideal for n Large Amplitude Signal Multiplexing general purpose analog signal selection and multiplexing. n Programmable Gain Amplifiers A shutdown feature reduces the supply current to 1.5mA. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATI All Hostile Crosstalk V 1 IN0 16 + V IN0 +1 V 15V Surface Mount PCB Measurements + 75W 75W V 2 O 15 20 V GND CFA OUT V = 15V S V = GND V 3 IN1 14 IN 0 V R IN1 +1 V 15V F V = 0dBm 40 IN 1,2,3 1k R = 100W R G L 75W 1k 4 FB 13 GND 60 V IN2 S/D 5 12 V IN2 +1 80 ENABLE 11 75W 6 GND LOGIC A1 10 100 V 7 IN3 V A0 9 IN3 +1 75W 120 8 1 10 100 REF LT1204 FREQUENCY (MHz) 1204 TA01 1204 TA02 15V 6.8k 8.2k 1 ALL HOSTILE CROSSTALK (dB) UO UO ULT1204 ABSOLUTEXAI U RATI GS Operating Temperature Range ............... 40 C to 85 C Supply Voltage ..................................................... 18V Storage Temperature Range ................ 65 C to 150 C Input Current (Pin 13) .................................... 15mA Junction Temperature (Note 4)............................ 150 C +Input and Control/Logic Current (Note 1) ........ 50mA Lead Temperature (Soldering, 10 sec).................. 300 C Output Short-Circuit Duration (Note 2) .........Continuous Specified Temperature Range (Note 3) ....... 0 C to 70 C PACKAGE/ORDER I FOR ATIO TOP VIEW TOP VIEW ORDER PART ORDER PART + + NUMBER V 1 16 V NUMBER IN0 1 16 V V IN0 GND 2 15 V O 2 15 V GND O V 3 14 V IN1 3 14 V LT1204CN* LT1204CSW* V IN1 GND 4 13 FB 4 13 FB GND V 5 12 SHDN IN2 5 12 SHDN V IN2 GND 6 11 ENABLE 6 11 ENABLE GND V 7 10 A1 IN3 7 10 A1 V IN3 REF 8 9 A0 8 9 A0 REF SW PACKAGE N PACKAGE 16-LEAD PLASTIC SO 16-LEAD PDIP *See Note 3 *See Note 3 T = 150 C, q = 70 C/W T = 150 C, q = 90 C/W JMAX JA JMAX JA Consult factory for Industrial and Military grade parts. LECTR AL CHARACTERIST E IC ICS 0 C T 70 C, 5V V 15V, V = 0V, Pin 8 grounded and pulse tested unless otherwise noted. A S CM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input Offset Voltage Any Positive Input, T = 25 C514mV OS A l 16 mV Offset Matching Between Any Positive Input, V = 15V l 0.5 5 mV S Input Offset Voltage Drift Any Positive Input l 40 m V/ C + I Positive Input Bias Current Any Positive Input, T = 25 C38 m A IN A l 10 m A I Negative Input Bias Current T = 25 C 20 100 m A IN A l 150 m A e Input Noise Voltage f = 1kHz, R = 1k, R = 10W , R = 0W 7 nV/ Hz n F G S +i Noninverting Input Noise Current Density f = 1kHz 1.5 pA/ Hz n i Inverting Input Noise Current Density f = 1kHz 40 pA/ Hz n C Input Capacitance Input Selected 3.0 pF IN Input Deselected 3.5 pF C Output Capacitance Disabled, Pin 11 Voltage = 0V 8 pF OUT R Positive Input Resistance, Any Positive Input V = 5V, V = 1.5V, 2V, T = 25 C5 20 MW IN S IN A V = 15V, V = 5V l 420 MW S IN 2 U WU U W W W