MAX4051ACPE+

Analog Switches, Multiplexers, Demultiplexers Overview

The MAX4051ACPE+ is a low-voltage CMOS analog multiplexer configured as an 8-channel switch in a 16-pin Plastic DIP package. It operates with dual supplies from ±2.7V to ±8V or a single supply between +2.7V and +16V. The device features a maximum on-resistance of 100Ω at ±5V, channel-to-channel match of 6Ω, and off-leakage current of 0.1nA at +25°C. Digital inputs are TTL/CMOS compatible with thresholds of 0.8V to 2.4V. Operating temperature range is 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Pin-compatible with industry-standard 74HC4051 devices
• TTL/CMOS-logic compatible digital inputs
• Low distortion and high off-isolation performance

Analog Switches, Multiplexers, Demultiplexers Applications

• Battery-operated equipment
• Audio and video signal routing
• Low-voltage data-acquisition systems
• Communications circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'PE' corresponds to the 16-pin Plastic DIP package and the 'C' indicates the commercial temperature range (0°C to +70°C). Confirm that the '+T' or standard designation aligns with the required manufacturing lot traceability and RoHS compliance status for your assembly process.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when rail-to-rail analog signal handling is required within a low-voltage environment. Ensure the system logic levels remain within the 0.8V to 2.4V threshold range for reliable switching. Verify that the 100Ω on-resistance meets the voltage drop requirements of the application circuit.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the MAX4051/A family of low-voltage CMOS analog switches manufactured by Analog Devices Inc./Maxim Integrated. The 'A' suffix denotes parts fully characterized for on-resistance match, flatness, and low leakage compared to standard variants.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct pin-compatible replacements include the MAX4051ACSE+ (Narrow SOIC) and MAX4051ACEE+ (QSOP) for different footprint requirements. Standard 74HC4051 equivalents may be used if higher on-resistance and leakage tolerances are acceptable.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the MAX4051 handle signals exceeding the supply rails?

Internal reverse ESD-protection diodes clamp any analog signal exceeding V+ or V-. Forward-diode current must be limited to the maximum rating to prevent damage.

What is the logic compatibility of the digital inputs?

The digital inputs have 0.8V to 2.4V logic thresholds, ensuring compatibility with both TTL and CMOS logic families when using ±5V or a single +5V supply.

Is the MAX4051ACPE+ suitable for high-frequency applications above 20MHz?

While response is flat up to 50MHz in 50Ω systems, off-state isolation degrades significantly above 20MHz due to capacitive coupling effects inherent in the switch structure.