MAX4521ESE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4521ESE is a quad, low-voltage, single-pole/single-throw (SPST) analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features four normally closed (NC) switches with a maximum on-resistance of 100Ω and a maximum on-resistance match between channels of 6Ω. The device operates from dual power supplies ranging from ±2V to ±6V or a single supply between +2V and +12V. It provides rail-to-rail analog signal handling, off-leakage current of 1nA at +25°C, and turn-on/turn-off times of 80ns/30ns respectively under standard conditions. The component is housed in a 16-pin Narrow SO package and supports an operating temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Four internally matched SPST analog switches with flat on-resistance over the specified signal range
• Rail-to-rail analog signal capability allowing full voltage swing across the supply range
• TTL and CMOS logic input compatibility ensuring direct interface with standard digital control circuits

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated equipment requiring low power consumption
• Data acquisition systems for signal path switching
• Test and measurement instrumentation
• Audio signal routing applications

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm the exact package type and temperature rating. Ensure that the selected variant matches the required operational environment and pin configuration before finalizing procurement specifications.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing circuits that require normally closed analog switching paths. Consider the 100Ω on-resistance limit and the specific supply voltage requirements for optimal performance in low-voltage single or dual supply configurations.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4521/MAX4522/MAX4523 family of quad, low-voltage SPST analog switches. While the MAX4522 offers normally open switches and the MAX4523 provides a mixed configuration, the MAX4521 specifically integrates four normally closed switches within the same electrical and physical footprint.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

MAX4521CSE

Analog Switches, Multiplexers, Demultiplexers FAQ

What is the default state of the switches in the MAX4521?

The MAX4521 contains four normally closed (NC) switches, meaning the signal path is connected between the COM and NC terminals when the logic input is low.

How does the MAX4521 handle analog signals relative to the power supplies?

Each switch can handle rail-to-rail analog signals, meaning the signal voltage can swing from the negative supply rail (V-) to the positive supply rail (V+).

Is the MAX4521 compatible with standard logic families?

Yes, all digital inputs have logic thresholds that ensure TTL and CMOS compatibility when using ±5V or a single +5V supply.