MAX335CWG

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX335CWG is an analog switch IC featuring eight independently controlled single-pole-single-throw (SPST) channels housed in a 24-pin Wide SO package. It operates with dual power supplies ranging from ±4.5V to ±20V or a single supply of +10V to +30V, supporting rail-to-rail analog signals up to ±15V. The device utilizes a serial digital interface compatible with Motorola SPI standards, allowing data input at DIN to be clocked synchronously with SCLK. Key electrical parameters include a maximum on-resistance of 200Ω, turn-on time of 500ns, and turn-off time of 500ns. Operating temperature range is specified from 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Eight individually addressable SPST switches controlled via a three-wire serial interface
• SPI-compatible serial interface enabling daisy-chaining of multiple devices
• Rail-to-rail analog signal handling capability within specified voltage limits
• Internal shift register resets all switches to the off state upon power-up

Analog Switches, Multiplexers, Demultiplexers Applications

• Serial data acquisition systems
• Process control applications
• Avionics signal routing
• Networking equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix CWG corresponds to the 24-pin Wide SO package and 0°C to +70°C temperature grade when sourcing. Confirm that the logic supply voltage VL is set to +5V for standard TTL compatibility unless otherwise required by the system design. Ensure proper handling procedures are followed for CMOS components to prevent electrostatic discharge damage during installation.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a compact solution for serially controlled switching is required without parallel data lines. The wide operating voltage range supports both bipolar and unipolar power supplies. Consider the 200Ω maximum on-resistance and 500ns switching speeds against system timing requirements. Verify that the serial interface timing constraints, such as setup and hold times, align with the host microcontroller's capabilities.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX335CWG belongs to the MAX335 family of serial-controlled analog switches. It functions equivalently to two DG211 quad switches but offers space savings through serial control. The device integrates an 8-bit shift register and latch mechanism to manage switch states efficiently. This family is designed for applications requiring minimal I/O pin usage while maintaining high channel density.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes include other MAX335 variants with different packages or temperature ranges, such as MAX335CNG or MAX335EUG. Cross-referencing pinouts and electrical specifications is essential when replacing with non-Maxim integrated products. Ensure any alternative device supports the same serial interface protocol and voltage levels.