Analog Devices Inc./Maxim Integrated MAX4664CSE+

MAX4664CSE Device Summary

The MAX4664CSE, manufactured by Analog Devices Inc./Maxim Integrated, is a high-performance, quad, single-pole/single-throw (SPST) CMOS analog switch. Offered in a 16-pin SOIC package, it is designed to simplify signal routing in complex systems, enabling reliable and low-resistance analog signal switching. The device features four normally closed (NC) independent switches, each with a maximum on-resistance of 5Ω, ensuring minimal signal distortion and robust performance across a wide supply and temperature range.

At its core, the MAX4664CSE provides low-leakage, rail-to-rail signal handling for AC and DC signals, making it a strong alternative to mechanical and reed relays due to its improved reliability and reduced board space requirements. This device is engineered to serve as an ideal solution for engineers and procurement teams seeking high endurance, compact, and consistent analog switching solutions.

Main Attributes of the MAX4664CSE Quad SPST Analog Switch

The MAX4664CSE stands out with several notable features that cater to high-integrity analog switching:

Low ON-Resistance (RON): Each switch exhibits a maximum on-resistance of 5Ω, with matching between switches guaranteed within 0.5Ω, and RON flatness over the signal range also at 0.5Ω max. This minimizes insertion loss and signal distortion.

Low Off-Leakage: Off-leakage current remains below 5nA at +85°C, ensuring high isolation and signal integrity, even at elevated temperatures.

Wide Supply Range: The device operates from a single +4.5V to +36V supply, or dual ±4.5V to ±20V supplies, offering flexibility for a variety of system voltages.

Logic Compatibility: Digital inputs are compatible with TTL and CMOS logic levels, supporting seamless interface at ±15V or a single +12V supply.

ESD Protection: Each switch is protected against ESD greater than 2kV, providing reliability against handling and operational events.

High Current Handling: Capable of conducting up to 100mA continuous current and handling 300mA in pulsed mode, the MAX4664CSE supports both signal-level and moderate-power switching applications.

Enhanced Reliability: Solid-state construction eliminates concerns common to mechanical relays, such as contact wear, resulting in longer operational life.

Uses of the MAX4664CSE Quad SPST Switch

The robust feature set of the MAX4664CSE makes it highly suitable for a wide range of circuit designs:

Test Equipment: The device's low RON, low leakage, and rail-to-rail analog handling make it a go-to component for automated test equipment (ATE), where accuracy and repeatability are critical.

Audio and Signal Routing: Low-distortion switching and guaranteed channel matching/flatness facilitate high-fidelity analog audio and signal-routing applications.

Telecommunications: Used in PBX/PABX systems and general communication infrastructure for analog signal path selection.

Avionics and Industrial Controls: The extended temperature range, robust ESD protection, and high reliability support mission-critical control and signal distribution tasks.

Reed Relay Replacement: Its CMOS architecture offers significant improvements over reed relays, including reduced size, lower power consumption, and increased reliability.

Electrical Specifications of the MAX4664CSE

Understanding the precise electrical behavior is essential for proper device selection and circuit integration:

Absolute Maximum Ratings: The MAX4664CSE tolerates V+ to GND from -0.3V to +44V and Vto GND from +0.3V to -44V. Continuous current ratings for switch terminals (COM, NO, NC) are ±100mA, with ±300mA for pulse operation (1ms, 10% duty cycle).

Temperature Range: The device operates from 0°C to +70°C (MAX466_C_E grade) and stores safely between -65°C and +150°C.

Input Logic Levels: Logic high threshold is +2.4V, and logic low is +0.8V (with ±15V supplies), ensuring compatibility with industry-standard logic interfaces.

Dynamic Performance: In dual supply operation (±15V), typical RON remains at 5Ω, flatness (ΔRON) at 0.5Ω, and matched resistance between channels at 0.5Ω. Off-isolation and crosstalk parameters are also optimized for minimal analog degradation, particularly in 50Ω systems.

MAX4664CSE Package Outline and Pin Assignments

The MAX4664CSE is supplied in a space-saving 16-pin SOIC package, adhering to JEDEC standards for manufacturability and compatibility. All pins are coplanar within 0.102mm, and the package is rated for reflow soldering. The device comprises 108 internal transistors, reflecting a compact and integrated design ideal for dense circuit boards.

Overvoltage Safeguards and High-Speed Capabilities of the MAX4664CSE

Protection and signal integrity are paramount in high-reliability systems:

Overvoltage Protection: While the MAX4664CSE's CMOS design is robust, proper supply sequencing (V+, then V-, then logic) is advised to prevent damage. Where sequencing is not practical, external diodes in series with supply pins can shield the device, but with a trade-off—such diodes lower the analog range by one diode drop below V+ and above V-.

High-Frequency Performance: The analog bandwidth of each switch is broad, with the on-state frequency response extending beyond 100MHz (with -2dB insertion loss in 50Ω systems). Above 300MHz, off-state isolation decreases as the switch capacitance becomes significant—important to consider in RF or high-speed analog signal routing. For designs above 5MHz, meticulous PCB layout is required to maintain signal integrity.

Alternative and Substitute Options for the MAX4664CSE

For design flexibility or supply chain redundancy, engineers may consider the following directly related Maxim Integrated/Analog Devices models:

MAX4665: Features four normally open (NO) switches, mirroring the core specifications of the MAX4664CSE but with a NO logic configuration.

MAX4666: Offers two normally closed (NC) and two normally open (NO) switches with guaranteed break-before-make characteristics, useful in multiplexing and sample-and-hold circuits.

Other CMOS Analog Switches: For applications requiring characterization at higher analog frequencies or different package footprints, related models such as the MAX440, MAX441, and MAX442 provide alternative options.

When selecting alternatives, always verify the required switch configuration (NO/NC), control logic, and electrical parameters to ensure seamless substitution.

Conclusion

The MAX4664CSE quad SPST CMOS analog switch combines low on-resistance, minimal leakage, and high reliability in a compact package. Its versatility across power supplies, robust logic compatibility, and suitability for both precision analog and moderate power routing make it a prime choice for engineers designing instrumentation, communications, and audio systems. By offering a solid-state replacement for mechanical relays, the MAX4664CSE simplifies maintenance and extends system lifetime, positioning itself as a reference solution for both engineering and procurement professionals seeking high-performance switching components.