The AD5628BCPZ1 is a low power, dual 12-bit buffered voltage output digital-to-analog converter (DAC) with an I2C interface from Analog Devices. It is designed for applications requiring accurate and stable voltage outputs, controlled via a digital interface.

Applications

• Process Control: Used in industrial process control systems for precise voltage adjustments.
• Data Acquisition Systems: Provides accurate analog outputs in data acquisition systems.
• Automated Test Equipment: Implemented in ATE for generating precise voltage stimuli.
• Closed-Loop Servo Control: Used in servo control systems for precise positioning and motion control.
• Portable Instrumentation: Suitable for battery-powered portable instruments due to its low power consumption.

Features

• Dual 12-Bit DACs: Provides two independent 12-bit resolution DAC channels.
• I2C Interface: Communicates via a simple I2C serial interface.
• Low Power Consumption: Minimizes power usage in battery-powered and energy-efficient applications.
• Buffered Voltage Outputs: Provides stable and accurate voltage outputs with low output impedance.
• Small Package: Available in a compact LFCSP package for space-constrained applications.

Benefits

• Precise Voltage Output: Offers accurate and stable voltage outputs with minimal drift.
• Easy Digital Control: Simple I2C interface simplifies integration into digital systems.
• Energy Efficiency: Low power consumption extends battery life in portable applications.
• Reduced Component Count: Integration of dual DACs reduces component count and board space.
• Robust Operation: Buffered outputs provide stable performance, even with varying load conditions.

Additional Details

The AD5628BCPZ1 operates from a single 2.7 V to 5.5 V power supply. The buffered voltage outputs can drive loads up to 2 kΩ. The device's I2C interface supports standard (100 kHz) and fast (400 kHz) modes. The DACs incorporate a power-on reset circuit, ensuring that the outputs are set to a known state upon power-up. The device also features a software clear function, allowing the outputs to be set to zero via the I2C interface. The AD5628BCPZ1 is commonly used in applications requiring precise and stable voltage outputs, such as industrial automation, instrumentation, and audio equipment. The device's low power consumption and small package size make it well-suited for portable and space-constrained applications. The BCPZ1 suffix indicates that the device is packaged in a 3mm × 3mm LFCSP package. The output voltage range is determined by the reference voltage applied to the device. The internal reference is typically 2.5V, but an external reference can be used for higher accuracy and stability. The device also features a power-down mode, further reducing power consumption when the DACs are not in use.

The settling time of the DAC outputs is typically in the microsecond range, making it suitable for dynamic applications. The device also incorporates output short-circuit protection to prevent damage in case of accidental shorts. The AD5628 is a versatile and reliable component that can be used in a wide range of applications where precise and digitally controlled voltage outputs are needed.