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AD674BKN

AD674BKN Description

The AD674BKN is a high-performance 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. Designed for precision data acquisition, it features parallel data interface and supports single-ended inputs with two input channels. The device operates with dual analog supply voltages (±11.4V to 16.5V) and a 5V digital supply, ensuring robust performance in mixed-signal environments. Housed in a 28-pin DIP package, it is suitable for through-hole mounting, making it ideal for prototyping and legacy systems. Although marked as obsolete, it remains relevant for maintenance and long-lifecycle applications.

AD674BKN Features

• 12-bit resolution with SAR architecture for fast and accurate conversions.
• Dual reference options: Supports external or internal voltage references for flexibility in system design.
• Wide analog supply range (±11.4V to 16.5V) and 5V digital supply, enabling compatibility with diverse power configurations.
• Parallel data output for straightforward interfacing with microprocessors and logic circuits.
• Two single-ended input channels, allowing multiplexed signal acquisition.
• Operating temperature range of 0°C to 70°C, suitable for industrial and commercial environments.
• Moisture Sensitivity Level (MSL) 1, indicating high reliability in non-harsh storage conditions.

AD674BKN Applications

The AD674BKN excels in applications requiring medium-speed, high-precision analog-to-digital conversion, such as:

• Industrial control systems: Process monitoring, sensor interfacing, and automation.
• Test and measurement equipment: Data loggers, oscilloscopes, and signal analyzers.
• Legacy military/aerospace systems: Where long-term availability and proven performance are critical.
• Medical instrumentation: Patient monitoring and diagnostic devices requiring stable ADC performance.
• Retro-computing and repair: Maintaining or upgrading older electronic systems with through-hole components.

Conclusion of AD674BKN

The AD674BKN is a robust 12-bit SAR ADC offering a balance of precision, versatility, and ease of integration. Its dual reference capability, wide supply range, and parallel interface make it a dependable choice for legacy and industrial applications. While newer surface-mount alternatives exist, the AD674BKN remains valuable for through-hole designs, repairs, and systems requiring long-term stability. Engineers seeking a mature, high-performance ADC for moderate-speed applications will find this device a reliable solution.