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DG189 Datasheet PDF

Vishay DG189

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. The driver is designed to achieve break-before-make switching action, eliminating the inadvertent shorting between channels and the crosstalk which would result.
Part No. DG189
Datasheet DG189 Download
Manufacturer
Vishay
Description High-Speed Drivers with Dual SPDT JFET Switches
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DG189 datasheet page 1 preview

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

To achieve fast and accurate switch performance, each device comprises four n-channel JFET transistors and a TTL compatible bipolar driver. 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 DIAGR...
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