Overview
The AD7247AARZ-REEL, produced by Analog Devices Inc., is a dual 12-bit digital-to-analog converter (DAC) integrated into a single monolithic CMOS chip. This component is part of the AD7237A/AD7247A series, which offers enhanced performance over earlier models. It features output amplifiers and a Zener voltage reference, making it a complete solution for various analog output applications. The device is designed for space-saving and increased reliability, particularly beneficial in systems requiring multiple DACs.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Resolution | Digital-to-analog conversion resolution | 12 bits |
| Output Range | Analog output voltage ranges | 0 V to +5 V, 0 V to +10 V, ±5 V (with dual supplies) |
| Power Supply | Operating voltage range | 12 V to 15 V |
| Interface | Data bus structure compatibility | 8-bit and 16-bit microprocessor compatible |
| Settling Time | Time for output to settle to final value | Faster settling times compared to previous models |
| Package Type | Physical package of the component | 24-SOIC (Small Outline IC) |
| Operating Temperature | Temperature range for operation | –40°C to +85°C |
Key Features
- Dual 12-Bit DACs: Two independent 12-bit DACs on a single chip, enhancing space efficiency and reliability.
- Wide Power Supply Range: Operates from 12 V to 15 V supplies, providing flexibility in system design.
- Fast Interface Times: Easy and direct interfacing with most modern microprocessors, supporting both 8-bit and 16-bit data bus structures.
- Output Amplifiers and Reference: Includes on-chip output amplifiers and a Zener voltage reference, eliminating the need for external components.
- Flexible Output Ranges: Supports multiple output voltage ranges, including 0 V to +5 V, 0 V to +10 V, and ±5 V with dual supplies.
- Asynchronous LDAC Signal: Allows for simultaneous updating of multiple AD7247A devices, useful in applications requiring synchronized analog output changes.
Applications
- Industrial Control Systems: Suitable for applications requiring precise analog output control, such as in process control and automation.
- Medical Devices: Used in medical equipment where accurate and reliable analog signals are crucial.
- Aerospace and Defense: Applicable in military and aerospace systems due to its robust performance and reliability.
- Test and Measurement Equipment: Ideal for instruments that require high-precision analog outputs.
Q & A
- What is the resolution of the AD7247AARZ-REEL?
The AD7247AARZ-REEL has a resolution of 12 bits.
- What are the available output voltage ranges for the AD7247AARZ-REEL?
The output voltage ranges include 0 V to +5 V, 0 V to +10 V, and ±5 V with dual supplies.
- What is the operating voltage range of the AD7247AARZ-REEL?
The component operates from 12 V to 15 V supplies.
- Is the AD7247AARZ-REEL compatible with 8-bit and 16-bit microprocessors?
- What is the package type of the AD7247AARZ-REEL?
The component is packaged in a 24-SOIC (Small Outline IC).
- What is the operating temperature range of the AD7247AARZ-REEL?
The operating temperature range is –40°C to +85°C.
- Does the AD7247AARZ-REEL require external user trims for full performance?
No, it does not require external user trims to achieve full specified performance.
- Can the AD7247AARZ-REEL use an external reference voltage?
- What is the significance of the LDAC signal in the AD7247AARZ-REEL?
The LDAC signal is asynchronous and controls the transfer of 12-bit data from the input latches to the DAC latches, allowing for simultaneous updating of multiple devices.
- Is the AD7247AARZ-REEL sensitive to electrostatic discharge (ESD)?
