dg641 Vishay, dg641 Datasheet
dg641
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dg641 Summary of contents
Page 1
... High Current: 100 mA, DG642 The DG641/642/643 are high performance monolithic video switches designed for switching wide bandwidth analog and digital signals. DG641 is a quad SPST, DG642 is a single SPDT, and DG643 is a dual SPDT function. These devices have exceptionally low on-resistances (5 capacitance and high current handling capability ...
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... V to (V–) + mA, whichever occurs first Continuous Current (Any Terminal Except Continuous Current DG641/643 . . . . . . . . . . . . . . . . . . . . . . . DG642 . . . . . . . . . . . . . . . . . . . . . . . . . . Current (Pulsed 1 ms, 10% duty cycle max) DG641/643 . . . . . . . . . . . . . . . . . . . . . . ...
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... See Figure MHz IN L Room See Figure 5 Room Full Room Full DG641/642/643 Vishay Siliconix Limits – Min Typ Max Unit – –10 – ...
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... DG641/642/643 Vishay Siliconix Parameter Symbol Analog Switch d d Analog Signal Range Analog Signal Range V V ANALOG ANALOG Drain-Source On-Resistance r DS(on) r Match r DS(on) DS(on) Source Off Leakage Current I S(off) Drain Off Leakage Current I D(off) Channel On Leakage Current I D(on) Digital Control Input Voltage High V INH Input Voltage Low ...
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... DG641/642/643 Vishay Siliconix Leakages vs. Temperature – 100 125 Temperature ( C) DG642 r vs. Drain Voltage DS(on V– = –3 V 125 –55 C – – Drain Voltage (V) D Off Isolation DG641/643 DG642 10 100 f – Frequency (MHz) www.vishay.com FaxBack 408-970-5600 4-5 ...
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... OFF 100 125 0 Charge Injection vs 1000 pF L DG641/643 DG642 –2 – – Drain Voltage (V) D Operating Supply Voltage Range Operating Voltage Area –1 –2 –3 – ...
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... O The charge injection in coulombs FIGURE 3. Charge Injection + GND V– C – Off Isolation = 20 log V O FIGURE 4. Off Isolation DG641/642/643 Vishay Siliconix t < < 50% 90 OFF OFF www ...
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... Circuit layout is facilitated by the interchangeability of source and drain terminals. Frequency Response A single switch on-channel exhibits both resistance [r and capacitance [C attenuation effect on the analog signal – which is frequency dependent (like an RC low-pass filter). The –3 dB bandwidth of the DG641/642/643 is typically 500 MHz (into 50 DG642 OUT 1 ...
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... Star connected system grounds eliminate signal current, flowing through ground path parasitic resistance, from coupling between channels. Figure 8 shows a 4-channel video multiplexer using a DG641. In Figure 9, two coax cables terminated on 75 video signals to the DG642 switch. The two drains tied together lower the on-state capacitance ...
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... DG641/642/643 Vishay Siliconix TTL Channel Select FIGURE Video Multiplexing Using the DG641 TTL Channel Select FIGURE 9. 2-Channel Video Selector Using the DG642 SELECT 1 / DG643 2 FIGURE 10 ...
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... Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right ...