MAX4521CSE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4521CSE is a quad, low-voltage, single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features four normally closed switches with a maximum on-resistance of 100Ω and a maximum on-resistance flatness of 12Ω over the signal range. The device operates from dual supplies ranging from ±2V to ±6V or a single supply between +2V and +12V. Key electrical parameters include an off-leakage current of 1nA at +25°C, a turn-on time of 80ns, and a turn-off time of 30ns under standard conditions. It is housed in a 16-pin Narrow SO package and supports an operating temperature range of 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four internally matched SPST switches with rail-to-rail analog signal handling capabilities
• TTL/CMOS-compatible digital inputs ensuring logic compatibility at ±5V or single +5V supplies
• Low power consumption combined with high ESD protection ratings per Method 3015.7

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated equipment
• Data acquisition systems
• Test equipment
• Avionics
• Audio signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature grade. Ensure that the component source is authorized to guarantee authenticity and traceability. Cross-reference the part number with the latest datasheet revision history to identify any potential design changes or obsolescence notices before finalizing procurement decisions.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4521 variant specifically when normally closed switch states are required for the application logic. Compare on-resistance specifications against other series members if lower resistance values are necessary for high-current paths. Verify that the chosen supply voltage configuration remains within the absolute maximum differential rating to prevent device damage during operation.

Analog Switches, Multiplexers, Demultiplexers Part Context

This component belongs to the MAX4521/MAX4522/MAX4523 family of quad analog switches. While the MAX4522 provides normally open switches and the MAX4523 offers a mixed configuration, the MAX4521CSE is distinguished by its four normally closed channels. All family members share identical pinouts and core electrical characteristics, differing primarily in their default switch states.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct functional substitutes within the same family include the MAX4521ESE for extended temperature ranges. Other packages such as MAX4521CEE or MAX4521CUE offer alternative form factors while maintaining electrical equivalence. Verify pin compatibility and thermal performance when transitioning between different package codes.