Overview
The AD7247ABN, produced by Analog Devices Inc., is an enhanced version of the industry-standard AD7247 dual 12-bit digital-to-analog converter (DAC). This component is part of the DACPORT® family and is designed to provide high performance and reliability in a compact package. The AD7247ABN features a monolithic CMOS chip with integrated output amplifiers and a Zener voltage reference, eliminating the need for external user trims to achieve full specified performance.
Key Specifications
| Parameter | Description |
|---|---|
| Resolution | 12-bit |
| Number of DACs | Dual |
| Power Supply Range | +12 V to +15 V |
| Output Voltage Ranges | 0 V to +5 V, 0 V to +10 V, ±5 V |
| Output Amplifier Capability | Capable of developing +10 V across a 2 kΩ load to GND |
| Interface | Microprocessor compatible with high-speed data latches and interface logic |
| Temperature Range | –40°C to +85°C (AD7247ABR) |
| Package Types | Small Outline (SOIC), Cerdip, Plastic DIP |
Key Features
- Single chip design with integrated output amplifiers and Zener voltage reference, offering space savings and increased reliability.
- Faster interface times for easy direct interfacing to most modern microprocessors with 8-bit or 16-bit data bus structures.
- No external user trims required for full specified performance.
- High-speed data latches and interface logic for microprocessor compatibility.
- REF OUT/REF IN function allowing the use of either the on-chip 5 V reference or an external reference voltage.
- Asynchronous LDAC signal for updating DAC latches and analog outputs.
Applications
The AD7247ABN is suitable for a variety of applications requiring high-precision digital-to-analog conversion, such as industrial control systems, medical devices, and automotive systems. Its compact design and robust performance make it ideal for use in environments where space is limited and reliability is critical.
Q & A
- What is the resolution of the AD7247ABN?
The AD7247ABN has a resolution of 12 bits. - How many DACs are included in the AD7247ABN?
The AD7247ABN includes two DACs. - What is the power supply range for the AD7247ABN?
The power supply range is from +12 V to +15 V. - What are the available output voltage ranges for the AD7247ABN?
The available output voltage ranges are 0 V to +5 V, 0 V to +10 V, and ±5 V. - Is the AD7247ABN microprocessor compatible?
Yes, the AD7247ABN is microprocessor compatible with high-speed data latches and interface logic. - What is the temperature range for the AD7247ABN?
The temperature range is –40°C to +85°C for the AD7247ABR model. - What types of packages are available for the AD7247ABN?
The component is available in Small Outline (SOIC), Cerdip, and Plastic DIP packages. - Does the AD7247ABN require external user trims?
No, the AD7247ABN does not require external user trims to achieve full specified performance. - Can the AD7247ABN use an external reference voltage?
Yes, the AD7247ABN has a REF OUT/REF IN function that allows the use of either the on-chip 5 V reference or an external reference voltage. - Is the AD7247ABN sensitive to electrostatic discharge (ESD)?
Yes, the AD7247ABN is an ESD-sensitive device and proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
