Overview
The AD5749ACPZ-RL7, produced by Analog Devices Inc., is a single-channel, low-cost, precision current output driver designed for industrial process control and Programmable Logic Controller (PLC) applications. This device integrates a digital-to-analog converter (DAC) and provides a programmable output current range, making it versatile for various industrial automation tasks. The AD5749 operates with a wide power supply range and is packaged in a 32-lead, 5 mm x 5 mm LFCSP package, ensuring compact and reliable performance in harsh environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Power Supply Range (AVDD) | 12 V (± 10%) | 55 V | V | ||
| Digital Power Supply (DVCC) | 2.7 V | 5.5 V | V | ||
| Temperature Range | -40°C | +105°C | °C | ||
| Input Voltage Range | 0 V | 4.096 V | V | Output unloaded | |
| Output Current Ranges | 0 mA | 24 mA / 4 mA to 20 mA | mA | ||
| Output Current Overranges | 0 mA | 24.5 mA / 3.92 mA to 20.4 mA | mA | See Detailed Description of Features section | |
| Power Dissipation | 108 mW | mW | AVDD = 24 V, output unloaded |
Key Features
- Programmable Output Current Ranges: The AD5749 offers programmable output current ranges of 0 mA to 24 mA and 4 mA to 20 mA, making it adaptable to various industrial control applications.
- Hardware or Software Programmable: The output ranges can be configured via an SPI-/MICROWIRE™-compatible serial interface, providing flexibility in system design.
- Open-Circuit Protection: The current output is open-circuit protected, ensuring safety and reliability in operation.
- Inductive Load Capability: The device can drive inductive loads up to 0.1 H, which is beneficial for controlling actuators and other inductive devices.
- Asynchronous CLEAR Function: The AD5749 features an asynchronous CLEAR function that sets the output current to zero-scale code or midscale of the selected range.
Applications
- Process Control: The AD5749 is ideal for process control applications where precise current output is required to control valves, pumps, and other process equipment.
- Actuator Control: It is suitable for controlling actuators in industrial automation systems.
- PLCs (Programmable Logic Controllers): The device is designed to integrate seamlessly with PLCs, enhancing the control and automation capabilities of industrial systems.
Q & A
- What is the primary application of the AD5749?
The AD5749 is primarily used in industrial process control and PLC applications. - What are the programmable output current ranges of the AD5749?
The AD5749 offers programmable output current ranges of 0 mA to 24 mA and 4 mA to 20 mA. - How is the output range configured in the AD5749?
The output range can be configured via an SPI-/MICROWIRE™-compatible serial interface. - What is the temperature range of the AD5749?
The temperature range of the AD5749 is from -40°C to +105°C. - Does the AD5749 have open-circuit protection?
Yes, the AD5749 has open-circuit protection for its current output. - Can the AD5749 drive inductive loads?
Yes, the AD5749 can drive inductive loads up to 0.1 H. - What is the asynchronous CLEAR function in the AD5749?
The asynchronous CLEAR function sets the output current to zero-scale code or midscale of the selected range. - What is the package type of the AD5749?
The AD5749 is packaged in a 32-lead, 5 mm x 5 mm LFCSP package. - What is the power supply range for the AD5749?
The power supply range for the AD5749 is from 12 V (± 10%) to 55 V. - Is the AD5749 suitable for harsh environments?
Yes, the AD5749 is designed to operate in harsh environments with its wide temperature range and robust packaging.
