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DG449 Datasheet(PDF) 7 Page - Vishay Siliconix |
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DG449 Datasheet(HTML) 7 Page - Vishay Siliconix |
7 / 10 page Document Number: 73897 S11-0097-Rev. B, 24-Jan-11 www.vishay.com 7 Vishay Siliconix DG449 TYPICAL CHARACTERISTICS (TA = 25 °C, unless otherwise noted) TEST CIRCUITS VO is the steady state output with the switch on. Switching Threshold vs. Supply Voltage 0 1.0 1.5 Supply Voltage (V) 20 15 10 5 0 25 0.5 3.0 2.5 2.0 30 Charge Injection vs. Analog Voltage - 50 - 40 - 30 - 20 - 10 0 V , V - Analog Voltage (V) - 3 - 6 - 9 - 12 - 15 0 3 50 40 30 20 10 15 12 9 6 NO NC V+ = + 12 V V ± = ± 15 V Figure 1. Switching Time CL (includes fixture and stray capacitance) RL RL + rON VO = Vi V- IN NO or NC COM CL 35 pF -15 V GND VO Vi V+ RL 300 + 15 V 0 V Logic Input Switch Input Switch Output 3 V 50 % 0 V VO VS tr < 20 ns tf < 20 ns tOFF tON 90 % Note: Logic input waveform is inverted for switches that have the opposite logic sense. Figure 2. Charge Injection CL 1 nF COM Rgen VO V+ NO or NC V- 3 V IN - 15 V GND + 15 V OFF ON OFF VO VO IN Q = VO x CL Vgen |
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