Rochester Electronics Logic - Universal Bus Functions MAX4540CAP

The MAX4540CAP is a low-voltage, dual 4-to-1 CMOS multiplexer designed for precision applications such as ADC calibration and system self-monitoring. It operates from a single supply voltage ranging from +2.7V to +12V or dual supplies of ¬±2.7V to ¬±6V. The device features precision resistor-dividers that provide accurate voltage ratios, including 15/4096 and 4081/4096 of the external reference voltage, with an accuracy of up to 15 bits. The MAX4540CAP has a maximum on-resistance of 100,Ѷ, with channel-to-channel matching of 6,Ѷ, and can handle rail-to-rail analog signals. It boasts low off-leakage current of 0.1nA at +25¬8C and 2nA at +85¬8C, making it suitable for battery-operated devices. The device is compatible with both TTL and CMOS logic levels, with input thresholds of 0.8V and 2.4V. It is available in a compact 20-pin SSOP package, making it suitable for space-constrained applications. Applications include audio signal routing, data acquisition systems, and avionics. The device is rated for operation in temperatures ranging from 0¬8C to +70¬8C or -40¬8C to +85¬8C, depending on the variant.