MAX351CSE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX351CSE is a precision, quad, single-pole single-throw (SPST) analog switch featuring four normally closed channels. It operates with a single supply from +10V to +30V or split supplies from ±4.5V to ±20V. The device provides an on resistance of less than 35Ω, guaranteed channel matching within 2Ω, and flatness under 3Ω. Key electrical parameters include a maximum turn-on time of 175ns, turn-off time of 145ns, charge injection of 10pC, and off leakage current below 6nA at +85°C. It utilizes CMOS logic inputs for compatibility and offers electrostatic discharge protection exceeding 2000V.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Precision SPST architecture with four normally closed switches
• Rail-to-rail analog signal handling capability
• TTL and CMOS logic input compatibility
• Low power consumption design

Analog Switches, Multiplexers, Demultiplexers Applications

• Sample-and-Hold Circuits
• Military Radios
• Guidance and Control Systems
• Communications Systems
• Test Equipment

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix 'CSE' to confirm the narrow SOIC package and commercial temperature range. Ensure the logic supply voltage aligns with system requirements for TTL or CMOS compatibility. Confirm that the normally closed configuration matches the circuit design intent before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a quad SPST switch with normally closed contacts is required. Verify that the analog signal range fits within the available supply voltages. Consider the 35Ω on resistance and switching speeds against system bandwidth needs. Ensure the operating temperature range meets environmental specifications.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX351/MAX352/MAX353 family of precision analog switches. The MAX351 variant specifically provides four normally closed switches, distinguishing it from the MAX352 (normally open) and MAX353 (mixed). All variants share identical electrical characteristics and pinouts.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct substitutes within the same family include the MAX351ESE for extended temperature ranges. Other packages such as Plastic DIP (MAX351CPE) or QFN (MAX351EGE) offer functional equivalents with different form factors.

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the default state of the switches in the MAX351?

The MAX351 features four normally closed (NC) switches.

How does the MAX351 handle overvoltage conditions?

Internal diodes clamp signals exceeding V+ or V-. External blocking diodes can be added for additional protection if power sequencing cannot be controlled.

Is the MAX351 compatible with standard logic families?

Yes, it supports both TTL and CMOS logic inputs through the VL pin connection.