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MAX4624EUT-T Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX4624EUT-T Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 12 page a small-signal diode (D1) as shown in Figure 1. If the analog signal can dip below GND, add D2. Adding protection diodes reduces the analog range to a diode drop (about 0.7V) below V+ (for D1), and a diode drop above ground (for D2). On-resistance increases slightly at low supply voltages. Maximum supply voltage (V+) must not exceed +6V. Adding protection diode D2 causes the logic threshold to be shifted relative to GND. TTL compatibility is not guaranteed when D2 is added. Protection diodes D1 and D2 also protect against some overvoltage situations. With Figure 1’s circuit, if the sup- ply voltage is below the absolute maximum rating, and if a fault voltage up to the absolute maximum rating is applied to an analog signal pin, no damage will result. 1 Ω, Low-Voltage, Single-Supply SPDT Analog Switches _______________________________________________________________________________________ 7 tr < 5ns tf < 5ns 50% VINL LOGIC INPUT RL 50 Ω COM GND IN CL INCLUDES FIXTURE AND STRAY CAPACITANCE. VOUT = VN_ ( RL ) RL + RON VIN_ VINH tOFF 0V NO OR NC 0.9 · V0UT 0.9 · VOUT tON VOUT SWITCH OUTPUT LOGIC INPUT LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES THAT HAVE THE OPPOSITE LOGIC SENSE. V+ CL 35pF V+ VOUT MAX4624 MAX4625 Figure 2. Switching Time Test Circuits/Timing Diagrams 50% VINH VINL LOGIC INPUT VOUT 0.9 · VOUT tD LOGIC INPUT RL 50 Ω GND CL INCLUDES FIXTURE AND STRAY CAPACITANCE. NO IN NC VOUT V+ V+ CL 35pF VN_ COM MAX4624 Figure 3a. Break-Before-Make Interval (MAX4624 only) |
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Similar Description - MAX4624EUT-T |
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