MAX4802CQI

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4802CQI+ is an eight-channel single-pole single-throw (SPST) normally open analog switch manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 2.7V to 13.2V and features a maximum on-resistance of 38 ohms with channel-to-channel matching of 1.9 ohms. The device utilizes a 28-pin PLCC package with J-leads, measuring 11.51x11.51 mm. Key electrical specifications include a maximum charge injection of 820 pC, off-state leakage current of 4 µA, and a channel capacitance of 18 pF. Switching times are limited to 5 µs for both turn-on and turn-off phases, with crosstalk specified at -80 dB at 5 MHz.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrates eight independent SPST switches within a compact surface-mount package
• Utilizes BCDMOS technology for high-voltage control via low-voltage logic signals
• Provides low charge injection characteristics suitable for precision signal routing

Analog Switches, Multiplexers, Demultiplexers Applications

• Ultrasonic imaging systems requiring high-voltage signal switching
• Printer applications involving capacitive load management
• Data acquisition systems needing multiplexed analog signal paths

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and check for obsolescence notices, as the MAX4802 series has been subject to production lifecycle changes. Ensure packaging type matches design requirements before ordering.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when eight isolated analog switches are required in a single package. Compare against the MAX4800 variant if lower leakage current is necessary, noting that the MAX4802 includes integrated discharge resistors. Verify voltage ratings align with specific application loads.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4800/MAX4802 family of high-voltage CMOS analog switches. These devices are designed for applications requiring isolation between low-voltage control circuits and high-voltage analog signals. The family supports various packaging options including PLCC, TQFP, and CSBGA formats.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4800CQI+ serves as a functional substitute within the same family. Verify pin compatibility and ensure that the absence of integrated discharge resistors in the MAX4800 does not impact circuit functionality.