Overview
The AD7247JRZ, produced by Analog Devices Inc., is an enhanced version of the industry-standard AD7247. This component is a complete, dual 12-bit, voltage output digital-to-analog converter (DAC) with integrated output amplifiers and a Zener voltage reference on a monolithic CMOS chip. Fabricated in Linear Compatible CMOS (LCMOS), it combines precision bipolar circuits with low power CMOS logic, offering improved performance and compatibility.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit |
| Number of DACs | Dual |
| Output Type | Voltage Output |
| Supply Voltage Range | 12 V to 15 V |
| Output Ranges | 0 V to +5 V, 0 V to +10 V, ±5 V (with dual supplies) |
| Load Capability | +10 V across a 2 kΩ load to GND |
| Interface | Parallel Load with WR and Chip Select inputs |
| Package Options | 24-Lead PDIP, 24-Lead SOIC (Wide), 24-Lead CerDIP (Narrow 0.3 Inch) |
| Reference Voltage | On-chip 5 V reference or external reference |
Key Features
- Faster settling times and interface times compared to previous models.
- No external user trims required to achieve full specified performance.
- Microprocessor compatible with high-speed data latches and interface logic.
- REF OUT/REF IN function allows the use of either the on-chip 5 V reference or an external reference.
- Supports single and dual supply operations with various output ranges.
Applications
The AD7247JRZ is suitable for a variety of applications requiring precise digital-to-analog conversion, such as industrial control systems, medical devices, data acquisition systems, and any system that needs high accuracy and reliability in converting digital signals to analog outputs.
Q & A
- What is the resolution of the AD7247JRZ?
The AD7247JRZ has a resolution of 12 bits. - How many DACs are integrated into the AD7247JRZ?
The AD7247JRZ is a dual DAC. - What are the available output ranges for the AD7247JRZ?
The output ranges include 0 V to +5 V, 0 V to +10 V, and ±5 V with dual supplies. - What is the supply voltage range for the AD7247JRZ?
The supply voltage range is from 12 V to 15 V. - Does the AD7247JRZ require external user trims?
No, the AD7247JRZ does not require external user trims to achieve full specified performance. - What types of packages are available for the AD7247JRZ?
The AD7247JRZ is available in 24-Lead PDIP, 24-Lead SOIC (Wide), and 24-Lead CerDIP (Narrow 0.3 Inch) packages. - Can the AD7247JRZ use an external reference voltage?
Yes, the AD7247JRZ has a REF OUT/REF IN function that allows the use of either the on-chip 5 V reference or an external reference. - Is the AD7247JRZ microprocessor compatible?
Yes, the AD7247JRZ is microprocessor compatible with high-speed data latches and interface logic. - What are some typical applications for the AD7247JRZ?
Typical applications include industrial control systems, medical devices, and data acquisition systems. - What are the key improvements in the AD7247JRZ compared to previous models?
The key improvements include faster settling times, faster interface times, and better reference variations with VDD.
