MAX4802ACCM+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4802ACCM+ is an 8-channel, high-voltage analog switch IC manufactured by Analog Devices Inc. (formerly Maxim Integrated). It utilizes BCDMOS technology to provide eight single-pole single-throw (SPST) switches controlled via a 20MHz SPI-compatible serial interface. The device operates with flexible high-voltage supplies ranging from VPP = +40V to (VNN + 200V) and VNN = -160V to -15V, while the digital logic supply (VDD) ranges from +2.7V to +6V. Key electrical parameters include a typical on-resistance of 22Ω at +25°C, off-isolation of -77dB at 5MHz, and low charge injection. The MAX4802A variant integrates 35kΩ bleed resistors on each switch terminal for discharging capacitive loads.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrated 35kΩ bleed resistors on each switch terminal for discharging capacitive loads
• Pin-compatible replacement for Supertex HV2303
• Fast 20MHz SPI-compatible serial interface with daisy-chaining capability
• Low charge injection and low capacitance SPST switches

Analog Switches, Multiplexers, Demultiplexers Applications

• Ultrasound imaging systems
• Printers

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the ordering suffix '+' indicates RoHS compliance. Confirm the package code 'CCM' corresponds to the 48-pin LQFP format. Ensure the component source matches Analog Devices or authorized distributors to avoid counterfeit parts. Check the specific revision history for any updates to electrical characteristics.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4802ACCM+ over the MAX4800ACCM+ when integrated bleed resistors are required to discharge capacitive loads without external components. Verify that the application requires the pin-compatible form factor of the Supertex HV2303. Ensure the system voltage differential does not exceed 200V and the digital inputs remain within the +6V tolerance limit.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4800A/MAX4802A family of low-charge-injection, 8-channel, high-voltage analog switches. The family shares identical control logic and switching architecture, differing primarily in the presence of internal bleed resistors and their respective pin-compatible replacements for legacy Supertex devices.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4802ACCM+ is a direct drop-in replacement for the Supertex HV2303FG-G. Designers upgrading from older designs should verify that the new device's power-on reset behavior aligns with system requirements.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the function of the RGND pin on the MAX4802A?

The RGND pin serves as the ground reference for the integrated 35kΩ bleed resistors connected to each switch terminal.

How does the MAX4802A handle power-up states?

A power-on reset circuit ensures that all switches are open (off) upon power-up.

Can multiple MAX4802A devices be connected together?

Yes, multiple devices can be daisy-chained by connecting the DOUT of one device to the DIN of the next, sharing common CLK, LE, and CLR lines.