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DG442DY Datasheet(PDF) 7 Page - Maxim Integrated Products |
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DG442DY Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 8 page Improved, Quad, SPST Analog Switches _______________________________________________________________________________________ 7 tOFF 0.8 x VOUT VOUT 0.8 x VOUT tf < 20ns tr < 20ns 50% 0V 0V +3V SWITCH OUTPUT LOGIC INPUT WAVEFORM IS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. tON SWITCH INPUT LOGIC INPUT +3V IN D +15V V+ V- -15V RL 35pF VOUT S CL (INCLUDES FIXTURE AND STRAY CAPACITANCE) GND REPEAT TEST FOR CHANNELS 2, 3, AND 4. VOUT = VD RL RL + rDS(ON) LOGIC INPUT VD DG441 DG442 ( ) ∆VOUT OFF ON OFF VOUT IN IN OFF OFF ON Q = ∆VOUT × CL -15V V- V+ IN GND S +15V RGEN VGEN VIN = +3V CL 1nF VOUT D DG441 DG442 DG441 DG442 Figure 2. Switching Time Figure 3. Charge Injection NETWORK ANALYZER SIGNAL GENERATOR RGEN = 50Ω S D GND RL 10dBm 10nF V+ +15V IN 0.8V or 2.4V V- -15V 10nF DG441 DG442 NETWORK ANALYZER SIGNAL GENERATOR RGEN = 50Ω 0.8V or 2.4V S IN1 D GND RL 10dBm 10nF V+ +15V D IN2 S 0.8V or 2.4V 50 Ω V- -15V 10nF DG441 DG442 Figure 4. Off-Isolation Rejection Ratio Figure 5. Crosstalk (repeat for channels 3 and 4) ______________________________________________Timing Diagrams/Test Circuits |
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