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DG191 Dataheets PDF



Part Number DG191
Manufacturers Vishay Siliconix
Logo Vishay Siliconix
Description High-Speed Drivers with Dual SPDT JFET Switches
Datasheet DG191 DatasheetDG191 Datasheet (PDF)

DG189/190/191 Vishay Siliconix High-Speed Drivers with Dual SPDT JFET Switches FEATURES D Constant On-Resistance Over Entire Analog Range D Low Leakage D Low Crosstalk D Rad Hardness BENEFITS D D D D D Low Distortion Eliminates Large Signal Errors High Precision High Bandwidth Capability Fault Protection APPLICATIONS D D D D D Audio Switching Video Switching Sample/Hold Guidance and Control Systems Aerospace DESCRIPTION The DG189/190/191 are precision dual single-pole, double-throw (SPDT) an.

  DG191   DG191


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DG189/190/191 Vishay Siliconix High-Speed Drivers with Dual SPDT JFET Switches FEATURES D Constant On-Resistance Over Entire Analog Range D Low Leakage D Low Crosstalk D Rad Hardness BENEFITS D D D D D Low Distortion Eliminates Large Signal Errors High Precision High Bandwidth Capability Fault Protection APPLICATIONS D D D D D Audio Switching Video Switching Sample/Hold Guidance and Control Systems Aerospace DESCRIPTION The DG189/190/191 are precision dual 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. To achieve fast and accurate switch performance, each device comprises four 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. The major difference in the devices is the on-resistance (DG189—10 W , DG190—30 W , DG191—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. FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION Dual-In-Line D1 NC D3 S3 S4 D4 NC D2 1 2 3 4 5 6 7 8 Top View 16 15 14 13 12 11 10 9 S1 IN1 V– VR VL V+ IN2 S2 S4 D4 D2 S2 IN2 V+ VL Flat Package 1 2 3 4 5 6 7 Top View Refer to JAN38510 Information, Military Section *Common to Substrate and Case 14 13 12 11 10 9 8 S3 D3 D1 S1 IN1 V–* VR TRUTH TABLE Logic 0 1 SW1, SW2 OFF ON Logic “0” v 0.8 V Logic “1” w 2.4 24V SW3, SW4 ON OFF Document Number: 70034 S-52880—Rev. C, 28-Apr-97 www.vishay.com S FaxBack 408-970-5600 4-1 DG189/190/191 Vishay Siliconix ORDERING INFORMATION Temp Range –25 25 to 85_C Package DG189BP 16-Pin 16 Pi Sidebraze Sid b DG190BP DG191BP Part Number DG189AP/883, 5962-9068901MEA 16-Pin 16 Pi Sidebraze Sid b –55 55 to 125_C 14-Pin Flat Pack JM38510/11108BXA DG190AP/883, JM38510/11107BEA DG191AP/883, JM38510/11108BEA JM38510/11107BXA ABSOLUTE MAXIMUM RATINGS V+ to V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V V+ to VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 V VS, VD to V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to 33 V VD to VD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "22 V VL to V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 V VL to VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VL to VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VIN to VR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V VR to V– . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 V VR to VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 V Current (S or D) DG189 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA Notes: a. All leads welded or soldered to PC Board. b. Derate 12 mW/_C above 75_C c. Derate 10 mW/_C above 75_C Current (S or D) DG190, DG191 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Current (All Other Pins) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65 to 150_C Power Dissipationa 16-Pin Sidebrazeb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW 14-Pin Flat Packc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 mW SCHEMATIC DIAGRAM (TYPICAL CHANNEL) VL V+ IN S D VR V– FIGURE 1. www.vishay.com S FaxBack 408-970-5600 4-2 Document Number: 70034 S-52880—Rev. C, 28-Apr-97 DG189/190/191 Vishay Siliconix SPECIFICATIONSa FOR DG189 Test Conditions Unless Specified Parameter Analog Switch Analog Signal Rangee Drain-Source On-Resistance Source Off L k Leakage Current C t VANALOG rDS(on) IS = –10 mA, VD = –7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V– = –20 V IS(off) VS = "7.5 V, VD = #7.5 V VS = "10 V, VD = #10 V V+ = 10 V, V– = –20 V ID(off) VS = "7.5 V, VD = #7.5 V ID(on) IDSS VD = VS = "7.5 V 2 ms Pulse Duration Full Room Full Room Hot Room Hot Room Hot Room Hot R.


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