MAX4551EEE

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4551EEE is a quad, low-voltage, single-pole/single-throw (SPST) analog switch featuring ±15kV ESD protection. It operates on dual supplies from ±2V to ±6V or a single supply between +2V and +12V. The device contains four normally closed switches with an on-resistance of 100Ω max and flatness of 8Ω max over the signal range. Off-leakage current is 1nA at +25°C and 10nA at +85°C. Digital inputs have +0.8V and +2.4V logic thresholds for TTL/CMOS compatibility. It is housed in a 16-pin QSOP package and functions within a temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• ±15kV ESD protection per IEC 1000-4-2
• Rail-to-Rail signal handling capability
• TTL/CMOS-compatible digital inputs
• Pin-compatible with industry-standard DG211/DG212/DG213

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 'EEE' corresponds to the 16-pin QSOP package and the extended industrial temperature range (-40°C to +85°C). Confirm that the component meets the required RoHS compliance status for your manufacturing process. Ensure the source documentation matches the Analog Devices / Maxim Integrated datasheet revision to validate all electrical parameters before integration.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when designing circuits requiring robust electrostatic discharge protection without external clamping diodes. It is suitable for applications needing rail-to-rail signal transmission under low-voltage conditions. Verify that the system's power supply voltage remains within the specified limits to prevent exceeding the absolute maximum ratings. Consider the package size constraints when choosing between the available QSOP and SOIC options.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4551/MAX4552/MAX4553 family of low-voltage SPST analog switches. While the MAX4551 features four normally closed switches, the MAX4552 provides four normally open switches, and the MAX4553 offers a mixed configuration. All variants share identical pinouts and core electrical characteristics, differing primarily in their default switch states.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet explicitly notes pin-compatibility with industry-standard DG211, DG212, and DG213 devices. Designers replacing these legacy components should verify that the replacement meets the specific ESD protection requirements and on-resistance flatness specifications of the original design.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX4551 handle ESD events?

The device incorporates bidirectional SCRs on the NC/NO pins that turn on during ESD strikes to bypass surge current safely to ground, providing ±15kV protection per IEC 1000-4-2.

What is the logic input threshold compatibility?

Digital inputs have +0.8V and +2.4V logic thresholds, ensuring full TTL and CMOS logic compatibility when using ±5V or a single +5V supply.

Can the MAX4551 operate with asymmetric power supplies?

Yes, the V+ and V- supplies need not be symmetrical, but their sum cannot exceed the absolute maximum rating of 13.0V.