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DG186 Datasheet(PDF) 1 Page - Vishay Siliconix |
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DG186 Datasheet(HTML) 1 Page - Vishay Siliconix |
1 / 8 page D2 1 2 3 4 5 6 7 14 13 12 11 10 9 8 Top View Flat Package NC NC NC NC D1 D2 S1 S2 IN NC V+ V–* VL VR Refer to JAN38510 Information, Military Section NC NC NC NC D1 S1 S2 IN V– V+ NC VL VR Dual-In-Line 1 2 3 4 5 6 7 14 13 12 11 10 9 8 Top View Metal Can V–* Top View NC VR S2 D1 D2 S1 IN V+ VL 1 2 3 4 5 6 7 8 9 10 *COMMON TO SUBSTRATE AND CASE DG186/187/188 Vishay Siliconix Document Number: 70033 S-52895—Rev. E, 16-Jun-97 www.vishay.com S FaxBack 408-970-5600 4-1 High-Speed Drivers with SPDT JFET Switches FEATURES BENEFITS APPLICATIONS D Constant On-Resistance Over Entire Analog Range D Low Leakage D Low Crosstalk D Rad Hardness D Low Distortion D Eliminates Large Signal Errors D High Precision D High Bandwidth Capability D Fault Protection D Audio Switching D Video Switching D Sample/Hold D Guidance and Control Systems D Telemetry DESCRIPTION The DG186/187/188 are precision single-pole, double-throw (SPDT) analog switches designed to provide accurate switching of video and audio signals. This series is ideally suited for applications requiring a constant on-resistance over the entire analog range. The major difference in the devices is the on-resistance (DG186—10 W, DG187—30 W, DG188—75 W). Reduced errors are achieved through low leakage current (ID(on) < 2 nA). Applications which benefit from the flat JFET on-resistance include audio switching, video switching, and data acquisition. To achieve fast and accurate switch performance, each device comprises two n-channel JFET transistors and a TTL compatible bipolar driver. The driver is designed to achieve break-before-make switching action, eliminating the inadvertent shorting between channels and the crosstalk which would result. In the on state, each switch conducts current equally well in either direction. In the off condition, the switches will block up to 20 V peak-to-peak, with feedthrough of less than –60 dB at 10 MHz. FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION TRUTH TABLE Logic SW1 SW2 0 OFF ON 1 ON OFF Logic “0” v 0.8 V Logic 0 v 0.8 V Logic “1” w 20 V Logic “1” w 2.0 V |
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