Overview
The AD7248AARZ-REEL, produced by Analog Devices Inc., is a 12-bit digital-to-analog converter (DAC) that is part of the AD7245A/AD7248A series. This component is a complete, voltage output DAC with an integrated output amplifier and a Zener voltage reference on a single monolithic CMOS chip. It is designed to offer high performance, reliability, and ease of use in various applications. The AD7248AARZ-REEL is particularly noted for its double-buffered byte loading capability, making it compatible with microprocessors and suitable for systems requiring precise analog output control.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 12 bits |
| Data Bus Width | 8-bit wide data bus (loaded in two write operations) |
| Supply Voltage Range | 12 V to 15 V |
| Output Voltage Ranges | 0 V to +5 V, 0 V to +10 V (single supply); 0 V to +5 V, 0 V to +10 V, ±5 V (dual supplies) |
| Linearity Grade | ±1/2 LSB |
| Interface Logic | Double-buffered interface logic |
| Load DAC Signal | Asynchronous LDAC signal |
| Package Type | 20-Lead SOIC (Wide) |
| Temperature Range | Extended temperature range for commercial and industrial grades |
Key Features
- High-speed data latches and double-buffered interface logic for easy interfacing with microprocessors.
- No external user trims required to achieve full specified performance.
- Integrated output amplifier and Zener voltage reference.
- Extended temperature range operation for commercial and industrial grades.
- Improved interface times and better full scale and reference variations with VDD.
- Asynchronous LDAC signal for transferring data from the input latch to the DAC latch.
- CLR signal on the DAC latch for features like power-on reset.
Applications
The AD7248AARZ-REEL is suitable for a variety of applications that require precise digital-to-analog conversion, including:
- Industrial control systems.
- Aerospace and defense systems.
- Medical devices.
- Automotive systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD7248AARZ-REEL? The AD7248AARZ-REEL has a 12-bit resolution.
- How is data loaded into the AD7248AARZ-REEL? Data is loaded into the AD7248AARZ-REEL through an 8-bit wide data bus in two write operations.
- What is the supply voltage range for the AD7248AARZ-REEL? The supply voltage range is from 12 V to 15 V.
- What are the output voltage ranges for the AD7248AARZ-REEL? The output voltage ranges are 0 V to +5 V, 0 V to +10 V (single supply), and 0 V to +5 V, 0 V to +10 V, ±5 V (dual supplies).
- Does the AD7248AARZ-REEL require external user trims? No, the AD7248AARZ-REEL does not require external user trims to achieve full specified performance.
- What is the significance of the LDAC signal in the AD7248AARZ-REEL? The LDAC signal is an asynchronous input that transfers data from the input latch to the DAC latch and updates the analog output.
- What package type is the AD7248AARZ-REEL available in? The AD7248AARZ-REEL is available in a 20-Lead SOIC (Wide) package.
- What temperature ranges does the AD7248AARZ-REEL support? The AD7248AARZ-REEL supports extended temperature ranges for both commercial and industrial grades.
- How does the AD7248AARZ-REEL handle power-on reset? The AD7248AARZ-REEL has a CLR signal on the DAC latch that allows for features like power-on reset to be implemented.
- What are some typical applications of the AD7248AARZ-REEL? Typical applications include industrial control systems, aerospace and defense systems, medical devices, automotive systems, and test and measurement equipment.
