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AD7564BRS

AD7564BRS Description

The AD7564BRS from Analog Devices Inc. is a 12-bit, quad-channel digital-to-analog converter (DAC) designed for precision analog output applications. Housed in a compact 28-SSOP package, this surface-mount device operates with a 5V digital and analog supply, ensuring compatibility with standard logic levels. It features a SPI interface for seamless integration into digital systems, offering a settling time of 550µs (typical) and ±0.5 LSB max INL/DNL for high accuracy. The external reference and differential output capabilities enhance flexibility in signal conditioning. Although marked as obsolete, the AD7564BRS remains a reliable choice for legacy designs requiring stable, multi-channel DAC performance.

AD7564BRS Features

• 12-bit resolution with quad D/A converters for multi-channel applications.
• SPI-compatible serial interface simplifies digital control.
• Low INL/DNL (±0.5 LSB max) ensures high linearity and precision.
• Differential output for noise reduction and improved signal integrity.
• 5V single-supply operation (analog and digital) for easy power management.
• 550µs settling time enables moderate-speed dynamic applications.
• External reference input allows customization of output range.
• 28-SSOP package optimizes board space in dense layouts.

AD7564BRS Applications

The AD7564BRS is ideal for systems requiring multi-channel, precision analog outputs, such as:

• Industrial automation: Control loops, PLCs, and actuator drives.
• Test and measurement equipment: Programmable voltage/current sources.
• Audio processing: Multi-channel digital audio systems.
• Legacy system upgrades: Replacement for older DACs with SPI compatibility.
• Medical instrumentation: High-accuracy signal generation.

Conclusion of AD7564BRS

The AD7564BRS combines 12-bit accuracy, quad-channel output, and SPI interfacing in a compact form factor, making it suitable for precision analog control systems. While obsolete, its low INL/DNL, differential output, and 5V operation ensure reliable performance in industrial, audio, and instrumentation applications. Engineers seeking a proven multi-channel DAC for legacy or low-complexity designs will find the AD7564BRS a robust solution.