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MAX4730ELT-T Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX4730ELT-T Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 9 page Low-Voltage 3.5 Ω Ω, SPDT, CMOS Analog Switches 6 _______________________________________________________________________________________ 50% 0V RL IN VIN V+ tOFF 0V tON CL V+ VCOM MAX4729 MAX4730 GND tr < 5ns tf < 5ns NO/NC VNO/NC V+ OPEN NC/NO COM RL IN VIN CL V+ VCOM MAX4729 MAX4730 GND NO VS V+ VS NC COM IN 50% 90% 90% VNO/NC VCOM 50% 0V V+ tBBM IN 50% 90% VS VCOM 0V 90% tBBM tBBM = tON(NC) - tOFF(NO) OR tBBM = tON(NO) - tOFF(NC) Figure 1. Switching Times Detailed Description The MAX4729/MAX4730 single-pole/double-throw (SPDT) switches operate from a single supply ranging from +1.8V to +5.5V. These switches provide low 3.5 Ω on-resistance (RON), as well as 0.45 Ω RON flatness with a 2.7V supply. These devices typically consume only 1nA of supply current, making them suitable for use in low-power, portable applications. The MAX4729/ MAX4730 feature low-leakage currents over the entire temperature range, TTL/CMOS-compatible digital logic, and excellent AC characteristics. Applications Information Digital Control Inputs The MAX4729/MAX4730 logic inputs accept up to +5.5V, regardless of supply voltage. For example, with a +3.3V supply, IN can be driven low to GND and high to +5.5V, allowing for mixing of logic levels in a system. With a 2.7V to 3.6V power-supply voltage range, the logic thresholds are set so VIL = 0.4V (max) and VIH = 2V (min). Power-Supply Sequencing and Overvoltage Protection Caution: Do not exceed the absolute maximum ratings because stresses beyond the listed ratings can cause permanent damage to the device. Proper power-supply sequencing is recommended for all CMOS devices. Always apply V+ before applying analog signals, espe- cially if the analog signal is not current limited. |
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