Overview
The AD7247ABRZ is a high-performance, dual-channel, 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This device is part of the AD7247 family and is known for its precision and versatility. The AD7247ABRZ features an integrated output amplifier and a zener voltage reference on a monolithic CMOS chip, eliminating the need for external user trims to achieve full specified performance. It operates with a parallel digital interface and supports both internal and external reference voltages. The device is fabricated using linear compatible CMOS (LC²MOS) technology, combining precision bipolar circuits with low-power CMOS logic.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Converters | 2 |
| Number of DAC Outputs | 2 |
| Resolution | 12 bits |
| Conversion Rate | 125 kSPS |
| Interface Type | Parallel |
| Settling Time | 8 μs |
| Maximum Operating Temperature | +85°C |
| Minimum Operating Temperature | -40°C |
| Output Type | Voltage – Buffered |
| Package/Case | SOIC-24 |
| Supply Voltage Range | ±10.8V to ±16.5V |
| Reference Type | Internal, External |
| INL/DNL (LSB) | ±0.5 (Max), ±0.9 (Max) |
| Architecture | R-2R |
Key Features
- High Resolution: The AD7247ABRZ offers a 12-bit resolution, providing precise analog output voltages suitable for demanding applications.
- Low Integral Non-Linearity (INL): The DAC’s low INL ensures accurate voltage output across the entire input code range, enhancing overall system precision.
- Low Glitch Energy: Minimized glitch energy ensures minimal disturbances in the analog output, contributing to improved signal integrity and fidelity.
- Flexible Output Range: The DAC offers a wide output voltage range, allowing it to be tailored to specific application requirements.
- Parallel Interface: The device supports a parallel digital interface, facilitating faster data transfer and simpler integration into various digital systems.
Applications
- Motor Control: Implementing precise speed and position control in servo motor systems for robotics and manufacturing equipment.
- Power Supply Regulation: Generating stable reference voltages for controlling power supply circuits in instrumentation and test equipment.
- Audio Signal Processing: Producing high-fidelity analog signals for audio equipment, such as digital audio workstations and musical instruments.
- Sensor Calibration: Calibrating sensor outputs in measurement systems to ensure accurate data acquisition and analysis.
Q & A
- What is the resolution of the AD7247ABRZ DAC?
The AD7247ABRZ has a resolution of 12 bits.
- What is the conversion rate of the AD7247ABRZ?
The conversion rate of the AD7247ABRZ is 125 kSPS.
- What type of interface does the AD7247ABRZ use?
The AD7247ABRZ uses a parallel digital interface.
- What is the settling time of the AD7247ABRZ?
The settling time of the AD7247ABRZ is 8 μs.
- What is the operating temperature range of the AD7247ABRZ?
The operating temperature range of the AD7247ABRZ is from -40°C to +85°C.
- Can the AD7247ABRZ use both internal and external reference voltages?
- What is the package type of the AD7247ABRZ?
The AD7247ABRZ comes in a SOIC-24 package).
- What are some common applications of the AD7247ABRZ?
The AD7247ABRZ is commonly used in motor control, power supply regulation, audio signal processing, and sensor calibration).
- How does the AD7247ABRZ ensure low glitch energy?
The AD7247ABRZ is designed to minimize glitch energy, ensuring minimal disturbances in the analog output and contributing to improved signal integrity and fidelity).
- What technology is used in the fabrication of the AD7247ABRZ?
The AD7247ABRZ is fabricated using linear compatible CMOS (LC²MOS) technology, combining precision bipolar circuits with low-power CMOS logic).
