Analog Devices Inc./Maxim Integrated

MAX391C/D

MAX391C/D Description

The MAX391C/D is a high-performance, single-pole single-throw normally closed (SPST-NC) analog switch designed by Analog Devices Inc./Maxim Integrated. This device is part of the Interface IC Chips category and is known for its exceptional electrical characteristics and compact die package. The MAX391C/D is designed to operate with a dual supply voltage ranging from ±3V to ±8V and a single supply voltage from 3V to 15V, making it versatile for a wide range of applications. Despite being marked as obsolete, the MAX391C/D remains a reliable choice for specific applications due to its robust performance and compatibility.

MAX391C/D Features

• Low Leakage Current: The MAX391C/D boasts a maximum leakage current of 100pA, ensuring minimal power consumption and maintaining signal integrity even in low-power applications.
• High Channel-to-Channel Matching: With a typical channel-to-channel matching of 300mOhm, the MAX391C/D ensures consistent performance across multiple channels, which is crucial for precision applications.
• Low On-State Resistance: The maximum on-state resistance of 35Ohm ensures minimal signal attenuation and power loss, making it suitable for high-current applications.
• Low Charge Injection: The MAX391C/D has a low charge injection of 2pC, which minimizes transient disturbances when switching between channels, ensuring clean signal transitions.
• Fast Switching Time: The switch time (Ton, Toff) is maximized at 130ns and 75ns respectively, allowing for rapid signal switching and high-speed applications.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the MAX391C/D is suitable for surface mount applications without the need for special handling or storage conditions.
• Operating Temperature Range: The device operates reliably within a temperature range of 0°C to 70°C, making it suitable for a variety of industrial and consumer applications.
• Regulatory Compliance: The MAX391C/D is REACH unaffected and ROHS3 compliant, ensuring it meets stringent environmental and safety standards.

MAX391C/D Applications

The MAX391C/D is ideal for applications requiring high-speed signal switching and low power consumption. Its low leakage current and fast switching times make it suitable for battery-powered devices and portable electronics. The low on-state resistance and charge injection characteristics make it an excellent choice for precision analog signal routing in instrumentation and control systems. Additionally, its compact die package and surface mount type allow for integration into space-constrained designs.

Conclusion of MAX391C/D

Despite its obsolete status, the MAX391C/D remains a valuable component for specific applications due to its superior electrical performance and reliability. Its low leakage current, fast switching times, and high channel-to-channel matching make it an ideal choice for precision analog switching. The MAX391C/D's compliance with environmental and safety standards ensures it meets the demands of modern electronics manufacturing. For applications requiring high-speed, low-power, and precision switching, the MAX391C/D continues to be a reliable and effective solution.