High Speed DMOS N-Channel Switch LLC SD403 FEATURES • Ultra High Speed Switching . . . . . . . . . . . . . . . . . tr < 1ns • Very Low Capacitance. . . . . . . . . . . . . . crss 0.4pf typical and TTL Compatible Input • CMOS • Low ON Resistance . . . . . . . . . . . . . . . . . 40 ohms typical APPLICATIONS • Switch Drivers • Video Switches and Hold • Samples • Track and Hold • VHF/UHF Amplifiers DESCRIPTION The Calogic SD403 is an N-Channel Enhancement-Mode Lateral DMOS FET. This product has very low capacitance, (crss < 0.4pf typical) allowing for high speed switching (tr 1ns). The SD403 is a high gain device (19mmhos) and has good performance values for sample and hold circuits, video switches and switch drivers where lower capacitance and high speed switching are critical. ORDERING INFORMATION Part Package Temperature Range -55 to +125oC -55 to +125oC -55 to +125oC SD403BD Plastic TO-92 SD403CY SOT-143 Surface Mount XSD403 Sorted Chips in Carriers PIN CONFIGURATION SCHEMATIC DIAGRAM DRAIN (2) TO-92 GATE (3) SOURCE (1) TO-92 D S G CD1-1 DRAIN (2) GATE (3) DRAIN (2) BODY (4) GATE (3) BODY (4) SOT-143 SOURCE (1) PRODUCT MARKING SD403CY SD403 SOURCE (1) SOT-143 CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS060 REV A SD403 LLC ABSOLUTE MAXIMUM RATINGS (TA = +25oC unless otherwise noted) Drain-Source Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . +15V Gate-Source Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V +20V Gate-Drain Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V +20V Source-Drain Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V Continuous Drain Current . . . . . . . . . . . . . . . . . . . . . . . 50mA Power Dissipation (at or below TA = +25oC) . . . . . . . . 300mW Linear Derating Factor . . . . . . . . . . . . . . . . . . . . . . 3.0mW/ oC Operating Junction and Storage Temperature Range . . . . . . . . . . . . . . . . -55oC to +125oC ELECTRICAL CHARACTERISTICS (TA = +25oC unless otherwise specified) SYMBOL CHARACTERISTICS MIN TYP 15 25 MAX UNIT TEST CONDITIONS STATIC BVDSS Drain-Source Breakdown Voltage V ID = 1.0µA, VGS =0 ID(OFF) Drain-Source OFF Leakage Current 1.0 µA VDS = 15V, VGS = 0 IGSS Gate-Source Leakage Current 1.0 µA VGS = 20V, VDS = 0 ID(ON) Drain-Source ON Current 80 mA VDS = 10V, VGS = 10 V Pulse Test VGS(th) Gate-Source Threshold Voltage 0.3 VDS(ON) Drain-Source ON Voltage rDS(ON) Drain-Source ON Resistance VDS(ON) rDS(ON) 120 1.5 V 140 175 mV 140 175 ohms Drain-Source ON Voltage 40 60 mV Drain-Source ON Resistance 40 60 ohms ID = 1.0µΑ, VDS = VGS ID = 1mA, VGS = 2.4V ID = 1mA, VGS = 4.5V DYNAMIC gfs Common-Source Forward Transconductance ciss Common-Source Input Capacitance 4.5 6.0 coss Common-Source Output Capacitance 2.0 3.0 crss Common-Source Reverse Transfer Capacitance 0.4 0.6 td(on) Turn ON Delay Time 0.8 1.2 tr Rise Time 0.9 1.2 t(OFF) Turn OFF Time 1.4 SWITCHING TIMES TEST CIRCUIT VDD 15 19 mS ID = 20mA VDS = 10V, f = 1KHz pf VDS = 10V, VGS = 0 f = 1MHz ns VDD = 10V, RL = 680Ω VG(ON) = 10V, RG = 51Ω CL = 1.5pF TEST WAVEFORMS VG(on) RL 90% V in 0 VOUT 10% t off t d(on) VG 510 Ω 51 Ω OSCILLOSCOPE RG Pulse Test INPUT PULSE t r <_ 0.5 nSEC PULSE WIDTH - 100 nSEC SAMPLING OSCILLOSCOPE t r < 0.36 nSEC Rin > 1M Ω C in < 2.0 pF t on tr VDD t fall t d(off) 90% 90% Vout ~ ~ 0V 10% CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX 10% DS060 REV A SD403 LLC TYPICAL PERFORMANCE CHARACTERISTICS (TA = +25oC unless otherwise noted) DRAIN-SOURCE ON RESISTANCE -VSGATE-SOURCE VOLTAGE ON DRAIN CURRENT -VSGATE-SOURCE VOLTAGE 175 VDS = 10V PULSE TEST 160 80µSec 1% Duty Cycle r DS(on) -Drain-Source ON Resistance-(ohms) ID(on) -ON Drain Current-(mA) 200 120 o TA = +25 C 80 TA = +125oC I D'Z' ≅ 7.5mA 40 0 4.0 6.0 8.0 10 2.0 VGS-Gate-Source Voltage (Volts) FORWARD TRANSCONDUCTANCE -VSON DRAIN CURRENT I D = 1.0mA 150 125 100 75 50 TA = +125 oC 25 o TA = +25 C 0 6.0 2.0 4.0 8.0 10 VGS-Gate-Source Voltage (Volts) g fs -Forward Transconductance-(mmhos) 35 30 25 VDS = 10V f = 1KHz PULSE TEST 80 µSec 1% Duty Cycle o TA = +25 C 20 o TA = +125 C 15 10 5.0 0 10 20 30 40 50 60 70 I D -Drain Current (mA) CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS060 REV A