MAX4521EGE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4521EGE is a quad, low-voltage, SPST-NC CMOS analog switch manufactured by Analog Devices Inc./Maxim Integrated. It features four independent switches in a single package with a maximum on-resistance of 100 ohms and channel-to-channel matching of 1 ohm. The device operates on a single supply voltage ranging from 2V to 12V or dual supplies of ±2V to ±6V. Key electrical parameters include a maximum on-time of 80ns, off-time of 30ns, charge injection of 1pC, and leakage current of 1nA. It supports an operating temperature range of -40°C to +85°C and is housed in a 16-TSSOP surface-mount package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Integrates four normally-closed SPST analog switches within a compact single IC
• Provides low on-resistance with high channel-to-channel matching for signal integrity
• Operates efficiently with low power consumption suitable for battery-powered applications

Analog Switches, Multiplexers, Demultiplexers Applications

• Portable instrumentation signal conditioning
• Battery-powered measurement systems
• Audio and video signal routing

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix EGE against official datasheets to confirm the TSSOP-16 package and industrial temperature grade. Confirm RoHS compliance status as older Maxim parts may vary. Check for obsolescence notices from Analog Devices, as this component family has faced discontinuation risks. Ensure the source document matches the exact part number to avoid pinout mismatches.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the MAX4521EGE when a normally-closed configuration is required for four channels. Compare on-resistance specifications against the MAX4522 (SPST-NO) if open logic is needed. Verify that the 100-ohm on-resistance meets the application's voltage drop requirements. Ensure the 12V single-supply limit aligns with the system power rails.

Analog Switches, Multiplexers, Demultiplexers Part Context

The MAX4521 belongs to the MAX4521-MAX4524 family of low-voltage analog switches. These devices are designed for applications requiring small form factors and low power. The EGE suffix specifically denotes the industrial temperature range and the 16-lead Thin Small Outline Package (TSSOP). This family complements other Maxim switch solutions like the MAX4540 multiplexers.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The MAX4521EPE is a PDIP equivalent with identical electrical characteristics but a different package. For surface-mount replacements, verify availability of the MAX4521EGE+ variant which may offer updated environmental compliance. Cross-reference with the MAX4522 if normally-open switching is acceptable.