Overview
The AD7244JR, produced by Analog Devices Inc., is a dual, complete 12-bit/14-bit serial Digital-to-Analog Converter (DAC) designed for high precision and versatility. This component is part of the AD7242/AD7244 series, which offers advanced features such as on-chip voltage reference, output buffer amplifiers, and high-speed serial interfaces. The AD7244JR is particularly notable for its 14-bit resolution, making it suitable for applications requiring high accuracy and precision.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 14-bit | - |
| Power Supplies | ±5 V | - |
| Analog Output Range | ±3 V | - |
| Settling Time | 4 μs to ±1/2 LSB | - |
| Operating Temperature | –40°C to +85°C | In plastic packages |
| Power Consumption | 130 mW (typical) | - |
| Package Types | 24-pin DIP, 28-pin SOIC | - |
Key Features
- Dual 14-Bit DACs with Output Amplifiers: The AD7244JR includes two complete 14-bit DACs with integrated output buffer amplifiers, ensuring high accuracy and stability.
- On-Chip Voltage Reference: The device features an on-chip 3 V reference that can be used internally or externally, providing flexibility in system design.
- High Speed Serial Interface: Each DAC has a separate high-speed serial interface, facilitating easy interfacing with DSP processors and microcontrollers.
- Small Package Size: Available in 24-pin DIP and 28-pin SOIC packages, offering significant space savings.
- Low Power Consumption: Typical power consumption of 130 mW, making it suitable for power-sensitive applications.
Applications
- Industrial Control Systems: The high precision and stability of the AD7244JR make it ideal for industrial control systems where accurate voltage outputs are critical.
- Medical Devices: Suitable for medical devices that require precise analog outputs, such as in diagnostic equipment and patient monitoring systems.
- Aerospace and Defense: The component's robust specifications and reliability make it a good fit for aerospace and defense applications.
- Automotive Systems: Can be used in automotive systems for precise control and monitoring, such as in engine control units and safety systems.
Q & A
- What is the resolution of the AD7244JR?
The AD7244JR has a resolution of 14 bits.
- What are the power supply requirements for the AD7244JR?
The AD7244JR operates from ±5 V power supplies.
- What is the analog output range of the AD7244JR?
The analog output range is ±3 V.
- How long does it take for the AD7244JR to settle?
The settling time is 4 μs to ±1/2 LSB.
- What are the operating temperature ranges for the AD7244JR?
The operating temperature range is –40°C to +85°C in plastic packages.
- What is the typical power consumption of the AD7244JR?
The typical power consumption is 130 mW.
- In what package types is the AD7244JR available?
The AD7244JR is available in 24-pin DIP and 28-pin SOIC packages.
- Does the AD7244JR have an on-chip voltage reference?
Yes, the AD7244JR features an on-chip 3 V reference.
- How does the AD7244JR interface with other components?
The AD7244JR has a high-speed serial interface for each DAC, allowing easy interfacing with DSP processors and microcontrollers.
- What are some typical applications for the AD7244JR?
Typical applications include industrial control systems, medical devices, aerospace and defense, and automotive systems.
