Analog Devices Inc./Maxim Integrated

MAX397C/D

MAX397C/D Description

The MAX397C/D is a dual 8:1 multiplexer/demultiplexer IC designed by Analog Devices Inc./Maxim Integrated. This device is engineered for high performance and reliability in signal routing applications. It features low on-state resistance (100Ω max) and low leakage current (100pA max), ensuring minimal power loss and high signal integrity. The MAX397C/D operates over a wide supply voltage range, from ±2.7V to ±8V for dual supplies and 2.7V to 16V for single supplies, making it versatile for various power configurations. It also offers excellent channel-to-channel matching (1.8Ω typ) and low charge injection (2pC), which are critical for maintaining signal accuracy in high-speed switching applications.

MAX397C/D Features

• Low On-State Resistance: The MAX397C/D boasts a maximum on-state resistance of 100Ω, ensuring minimal signal attenuation and power loss.
• Low Leakage Current: With a maximum leakage current of 100pA, this IC maintains high signal integrity even at low power levels.
• Wide Supply Voltage Range: The device operates over a wide voltage range, from ±2.7V to ±8V for dual supplies and 2.7V to 16V for single supplies, providing flexibility in power supply design.
• High Channel Matching: The typical channel-to-channel matching of 1.8Ω ensures consistent performance across all channels.
• Low Charge Injection: Charge injection is kept to a minimum at 2pC, which is crucial for maintaining signal accuracy during switching.
• Fast Switching Time: The MAX397C/D offers a maximum switch time of 150ns for both turn-on and turn-off, enabling high-speed signal routing.
• Low Channel Capacitance: The channel capacitance is 11pF for CS(off) and 40pF for CD(off), which helps in reducing signal distortion.
• Surface Mount Packaging: Available in a die package, the MAX397C/D is suitable for surface mount applications, ensuring compact and reliable integration into modern electronic designs.

MAX397C/D Applications

The MAX397C/D is ideal for applications that require high-speed signal routing and low power consumption. Some specific use cases include:

• Data Acquisition Systems: The low on-state resistance and high channel matching make it suitable for routing analog signals in data acquisition systems.
• Telecommunications: The wide supply voltage range and fast switching times are beneficial for signal routing in telecommunication equipment.
• Medical Equipment: The low leakage current and high signal integrity are critical for medical devices where precision and reliability are paramount.
• Industrial Control Systems: The robustness and versatility of the MAX397C/D make it suitable for industrial applications where signal integrity and reliability are essential.

Conclusion of MAX397C/D

The MAX397C/D is a high-performance dual 8:1 multiplexer/demultiplexer IC that offers a combination of low on-state resistance, low leakage current, and fast switching times. Its wide supply voltage range and excellent channel matching make it a versatile solution for various signal routing applications. While the product is now obsolete, its unique features and performance benefits make it a valuable component for legacy systems and specific applications where its attributes are still highly desirable.