Overview
The AD7244JR-REEL, produced by Analog Devices Inc., is a 14-bit dual digital-to-analog converter (DAC) designed for high-speed data conversion and various data acquisition applications. This device is part of the LC2MOS family, combining precision bipolar circuits with low-power CMOS logic. It features two 14-bit DACs with output amplifiers, an on-chip voltage reference, and a high-speed serial interface, making it suitable for interfacing with DSP processors and microcontrollers.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Number of D/A Converters | 2 |
| Settling Time | 4 µs |
| Output Type | Voltage - Buffered |
| Differential Output | No |
| Data Interface | SPI |
| Reference Type | External, Internal |
| Voltage Supply, Analog | ±4.75V ~ 5.25V |
| Voltage Supply, Digital | ±4.75V ~ 5.25V |
| INL/DNL (LSB) | ±2, ±1 (Max) |
| Architecture | R-2R ladder structure |
| Operating Temperature | -40°C to 85°C |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) |
| Mounting Type | Surface Mount |
Key Features
- 14-bit resolution with two DACs
- High-speed serial interface (SPI) for efficient data transfer
- External or internal reference option
- Voltage-buffered output type
- No differential output
- R-2R ladder structure architecture
- Operating temperature range: -40°C to 85°C
- Low power consumption: 130 mW typical
- Fast settling time: 4 µs to ±1/2 LSB
Applications
- Digital potentiometer emulation: Providing digitally controlled variable resistances in circuits.
- Video processing: Converting digital video signals into analog signals for display and transmission.
- Test and measurement: Used in various testing and measurement equipment such as oscilloscopes, spectrum analyzers, and signal generators.
- Industrial control: Used in control systems and devices like motor control and automatic control systems.
- LED drivers: Controlling the intensity and color of LEDs in lighting systems.
- Medical devices and instruments
- Industrial automation systems
- Aerospace and defense applications
- Automotive telematics and infotainment systems
- Smart grid and energy management systems
Q & A
- What is the resolution of the AD7244JR-REEL DAC?
The AD7244JR-REEL has a 14-bit resolution.
- How many DACs are included in the AD7244JR-REEL?
The device includes two 14-bit DACs.
- What is the settling time of the AD7244JR-REEL?
The settling time is 4 µs to ±1/2 LSB.
- What type of data interface does the AD7244JR-REEL use?
The device uses a high-speed serial interface (SPI).
- Can the AD7244JR-REEL use an external or internal reference voltage?
Yes, it supports both external and internal reference voltage options.
- What is the operating temperature range of the AD7244JR-REEL?
The operating temperature range is -40°C to 85°C.
- What is the package type of the AD7244JR-REEL?
The device is packaged in a 28-SOIC (0.295", 7.50mm Width).
- What are some common applications of the AD7244JR-REEL?
Common applications include digital potentiometer emulation, video processing, test and measurement, industrial control, and LED drivers.
- Does the AD7244JR-REEL support differential output?
No, it does not support differential output.
- What is the typical power consumption of the AD7244JR-REEL?
The typical power consumption is 130 mW.
