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MAX4503EUK+T is listed in the Analog Switches, Multiplexers, Demultiplexers range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC SW SPST-NOX1 250OHM SOT23-5. Review the specifications below when checking this part for your BOM.
The MAX4503EUK+T is a low-voltage, dual-supply, single-pole/single-throw (SPST) CMOS analog switch housed in an SOT-23-5 package. It operates with dual supplies between ±1V and ±6V, handling rail-to-rail analog signals. The device features guaranteed on-resistance of 250Ω at ±5V supplies, off-leakage current of 1nA at +25°C, and charge injection of 10pC maximum. Switching speeds are specified as 150ns turn-on time and 100ns turn-off time. The digital input is CMOS-logic compatible without requiring a ground pin.
Verify the component authenticity by checking the marking code 'AC' on the SOT-23-5 package for the MAX4503 variant. Confirm the suffix '+T' indicates tape-and-reel packaging. Ensure the operating temperature range matches the 'E' grade specification of -40°C to +85°C. Cross-reference the manufacturer part number with official Analog Devices documentation to avoid counterfeit components.
Select the MAX4503EUK+T when a normally open SPST configuration is required for dual-supply applications. Compare it against the MAX4504 if a normally closed state is needed instead. Consider the MAX4501 or MAX4502 if single-supply operation is sufficient, as they are pin-for-pin equivalents. Evaluate the 250Ω on-resistance limit against system requirements at the specific supply voltage.
This component belongs to the MAX4503/MAX4504 family of low-voltage CMOS analog switches. It shares the same electrical characteristics and pinout as the MAX4504, differing only in the default switch state (normally open vs. normally closed). The EUK suffix denotes the extended temperature range (-40°C to +85°C) and the SOT-23-5 surface-mount package.
MAX4504EUK+T serves as a direct functional substitute with identical specifications, differing only in the normally closed switch state.
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