Analog Devices Inc./Maxim Integrated MAX4664CSE

MAX4664CSE Quad SPST CMOS Analog Switch Product Summary

The MAX4664CSE, manufactured by Analog Devices Inc./Maxim Integrated, is a high-performance quad Single-Pole Single-Throw (SPST) normally-closed CMOS analog switch. Supplied in a standard 16-pin SOIC package, this device integrates four independent analog switches, each supporting 1:1 signal routing with a low on-resistance of just 5Ω (maximum). Designed for both single +4.5V to +36V and dual ±4.5V to ±20V supply operation, the MAX4664CSE offers outstanding versatility for a broad range of analog signal switching tasks in measurement, communication, and high-reliability automation systems.

Primary Characteristics and Operational Functions of the MAX4664CSE

The MAX4664CSE sets itself apart through its optimized on-resistance, guaranteeing less than 5Ω per channel with a maximum resistance variation of only 0.5Ω, ensuring minimal signal degradation and channel-to-channel consistency. Notably, the switch supports rail-to-rail analog signal handling, allowing input signals that span the full supply range. With a typical off-leakage current of just 5nA at +85°C, the MAX4664CSE delivers exceptional isolation, low power loss, and suitability for precision analog applications.

Each logic input is compatible with both TTL and CMOS levels, thanks to well-defined threshold voltages—0.8V for logic low and 2.4V for logic high—facilitating straightforward, reliable interfacing whether using ±15V, +12V, or similar supply configurations. Additional built-in features include robust ESD protection exceeding 2kV (per Method 3015.7), which improves durability in demanding environments.

The MAX4664CSE is part of a broader analog switch family, with the MAX4665 offering four normally open switches and the MAX4666 providing a combination of two normally closed and two normally open channels, the latter with guaranteed break-before-make operation.

In-depth Electrical Parameters of the MAX4664CSE

Engineers selecting the MAX4664CSE benefit from a comprehensive set of guaranteed electrical specifications under both dual-supply (e.g., ±15V) and single-supply (e.g., +12V) modes. Key parameters include:

Absolute maximum supply voltages: up to +44V between V+ and V

Maximum continuous switch current: ±100mA, with pulsed capability up to ±300mA

Maximum total device power dissipation: 696mW at +70°C (SOIC package, derating required above this temperature)

Operating temperature range: 0°C to +70°C

Switching characteristics are tightly defined, with on-resistance flatness (the maximum difference in RON across the full signal range) limited to 0.5Ω. Signal leakage currents are stringently capped, ensuring accurate signal routing even in low-level analog applications. Each channel maintains excellent off-isolation and crosstalk performance, factors crucial when integrating the MAX4664CSE in dense signal matrices or high-fidelity audio lines.

Use Cases and Implementation Recommendations for the MAX4664CSE

The MAX4664CSE is purpose-built for systems requiring reliable, low-distortion, and high-speed switching. Its primary target applications include:

Automatic test equipment (ATE) demanding rapid, repeatable signal routing and replacement of slower, less reliable mechanical relays

Telecommunication switching systems such as PBX or PABX units

Audio signal routing in professional or industrial-grade sound devices

Avionics systems where compact, robust signal switches are critical for reliability

For optimal performance, engineers should ensure proper power-supply sequencing—powering V+ first, followed by V-, and then logic and analog inputs. In cases where this sequence cannot be assured, the integration of small signal diodes on supply lines is recommended to preserve device integrity without adversely affecting switch performance in multi-supply designs.

MAX4664CSE Packaging, Pin Layout, and Mechanical Structure

The MAX4664CSE is delivered in industry-standard JEDEC MS012-XX 16-pin SOIC and compatible DIP configurations, with tight mechanical tolerances and coplanarity. This packaging ensures compatibility with conventional automated board assembly and soldering techniques. Each switch channel is accessible via distinct pins for NC, NO, COM, and IN connections, simplifying PCB layout and facilitating straightforward system integration.

Additional mechanical data include:

Mold flash/protrusion not exceeding 0.15mm

Lead coplanarity within 0.102mm

Complies with JEDEC standards, ensuring interchangeability in standardized designs

Overvoltage Safeguarding and High-Speed Capabilities of the MAX4664CSE

When deploying the MAX4664CSE in systems exposed to possible overvoltage conditions, proper sequencing of power pins is essential to avoid device stress and potential failure. In multi-supply systems, protection diodes can be added to supply lines, but such measures may marginally reduce the analog signal swing limit.

The MAX4664CSE offers excellent high-frequency on-performance, delivering low loss up to 100MHz in 50Ω systems; however, typical off-isolation begins to degrade above 5MHz due to inherent switch capacitance, especially in layouts not optimized for RF. For critical RF applications where off-isolation and flatness above 5MHz are essential, engineers may consider specialized analog switches such as the MAX440, MAX441, or MAX442 from the same manufacturer.

Alternative Comparable Devices or Substitutes for the MAX4664CSE

Engineers seeking similar or alternative solutions to the MAX4664CSE may consider the following related Maxim Integrated devices:

MAX4665: Offers the same electrical parameters but with four normally open (NO) switches

MAX4666: Provides a balanced solution with two NO and two NC channels, suitable for break-before-make switching schemes

For applications necessitating even higher-frequency performance (above 5MHz) or demanding further isolation, the MAX440, MAX441, and MAX442 series should be considered as they are characterized for operation up to 160MHz.

Conclusion

The MAX4664CSE quad SPST CMOS analog switch from Analog Devices Inc./Maxim Integrated presents an ideal convergence of low on-resistance, robust logic-level control, and rail-to-rail signal handling. Tailored for today’s fast-switching and space-constrained test, audio, and communication systems, it ensures engineers achieve high signal integrity, reliability, and energy efficiency with ease. By understanding its detailed functional capabilities, integration guidelines, and possible equivalency options, procurement professionals and design engineers can confidently select the MAX4664CSE for their next-generation analog signal switching applications.