LSK389 LINEAR | Alldatasheet

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Technical content

Linear Integrated Systems • 4042 Clipper Court • Fremont, CA 94538 • Tel: 510 490-9160 • Fax: 510 353-0261

FEATURES

ULTRA LOW NOISE e n = 0.9nV/√Hz (typ) TIGHT MATCHING |V GS1-2| = 20mV max HIGH BREAKDOWN VOLTAGE BV GSS = 40V max HIGH GAIN Y fs = 20mS (typ) LOW CAPACITANCE 25pF typ IMPROVED SECOND SOURCE REPLACEMENT FOR 2SK389 ABSOLUTE MAXIMUM RATINGS1 @ 25 °C (unless otherwise stated) Maximum Temperatures Storage Temperature -65 to +150 °C Operating Junction Temperature -55 to +135 °C Maximum Power Dissipation Continuous Power Dissipation @ +125 °C 400mW Maximum Currents Gate Forward Current I G(F) = 10mA Maximum Voltages Gate to Source V GSS = 40V Gate to Drain V GDS = 40V MATCHING CHARACTERISTICS @ 25 °C (unless otherwise stated) SYMBOL CHARACTERISTIC MIN TYP MAX UNIT CONDITIONS GS2GS1 VV − Differential Gate to Source Cutoff Voltage 20 mV V DS = 10V, ID = 1mA DSS2 DSS1 I I Gate to Source Saturation Current Ratio 0.9 - V DS = 10V, VGS = 0V ELECTRICAL CHARACTERISTICS @ 25 °C (unless otherwise stated) SYMBOL CHARACTERISTIC MIN TYP MAX UNITS CONDITIONS BVGSS Gate to Source Breakdown Voltage 40 V V DS = 0, ID = 100µA VGS(OFF) Gate to Source Pinch-off Voltage 0.15 2 V V DS = 10V, ID = 0.1µA LSK389A 2.6 6.5 LSK389B 6 12 IDSS Drain to Source Saturation Current LSK389C 10 20 mA V DS = 10V, VGS = 0 IGSS Gate to Source Leakage Current 200 pA V GS = -30V, VDS = 0 LSK389 ULTRA LOW NOISE MONOLITHIC DUAL N-CHANNEL JFET Linear Integrated Systems *For equivalent single version, see LSK170 family. SOIC-A SS SS BOTTOM VIEW TO-71

Linear Integrated Systems • 4042 Clipper Court • Fremont, CA 94538 • Tel: 510 490-9160 • Fax: 510 353-0261 ELECTRICAL CHARACTERISTICS CONT. @ 25 °C (unless otherwise stated) SYMBOL CHARACTERISTIC MIN TYP MAX UNITS CONDITIONS Yfs Full Conduction Transconductance 8 20 mS VDS = 10V, VGS = 0, IDSS = 3mA, f = 1kHz en Noise Voltage 0.9 1.9 nV/ √Hz VDS = 10V, ID = 2mA, f = 1kHz, NBW = 1Hz en Noise Voltage 2.5 4 nV/ √Hz VDS = 10V, ID = 2mA, f = 10Hz, NBW = 1Hz CISS Common Source Input Capacitance 25 pF V DS = 10V, VGS = 0, f = 1MHz, CRSS Common Source Reverse Transfer Cap. 5.5 pF V DG = 10V, ID = 0, f = 1MHz, 1. Absolute maximum ratings are limiting va lues above which serviceability may be impaired. Information furnished by Linear Integrated Systems is believed to be accurate and reliable. However, no responsibility is assumed for its use; nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Linear Integrated Systems. Revised 07 December 2005. ALSK389 - SOIC-8- Package TO-71 6L SOIC-A 8L SOIC-8 IDSS Range 2.6 - 6.5 mA 6 - 12 mA 10 - 20 mA A B C

ORDERING INFORMATION

0.230 0.209 DIA. DIA.0.195 0.175 0.030 MAX. 0.500 MIN. 0.150 0.115 0.019 0.016 DIA.

6 LEADS

0.046 0.036 45° 0.048 0.028 0.100 0.050 SOIC DIMENSIONS IN INCHES 0.2284 0.2440 0.189 0.196 0.0075 0.0098 0.021 0.014 0.018 0.050 0.0040 0.0098 0.150 0.157 PACKAGE DIMENSIONS