Overview
The AD7703BR-REEL, produced by Analog Devices Inc., is a high-performance 20-bit analog-to-digital converter (ADC) that utilizes a sigma-delta (Σ-Δ) conversion technique. This ADC is designed to offer exceptional accuracy and linearity, making it suitable for a wide range of precision measurement applications. The device features a flexible serial interface, low power consumption, and an ultralow power standby mode, which makes it ideal for battery-powered and remote sensing applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 20 bits |
| Accuracy | 0.0003% |
| Sampling Rate | Up to 4 kHz |
| Input Range | ±VREF (bipolar), VREF (unipolar) |
| Analog Supply Voltage | 5 V nominal |
| Digital Supply Voltage | 5 V nominal |
| Power Consumption (Operating) | Low power dissipation |
| Power Consumption (Standby) | 10 µW |
| Interface | Flexible serial port (asynchronous and synchronous modes) |
Key Features
- 20-bit resolution with no missing codes, ensuring true 20-bit dynamic range.
- On-chip self-calibration to eliminate zero and gain errors, and to null system offset and gain errors.
- Flexible synchronous and asynchronous serial interface compatible with UARTs, shift registers, and microcontrollers.
- Low operating power consumption and ultralow power standby mode.
- CMOS construction for low power dissipation.
Applications
The AD7703BR-REEL is suitable for various precision measurement applications, including:
- Loop-powered remote sensing.
- Battery-powered portable instruments.
- Industrial process control.
- Medical devices requiring high accuracy.
- Aerospace and defense applications.
Q & A
- What is the resolution of the AD7703BR-REEL? The AD7703BR-REEL has a 20-bit resolution.
- What is the accuracy of the AD7703BR-REEL? The accuracy is 0.0003%.
- What is the maximum sampling rate of the AD7703BR-REEL? The maximum sampling rate is up to 4 kHz.
- What are the input range options for the AD7703BR-REEL? The input range options are ±VREF (bipolar) and VREF (unipolar).
- How does the AD7703BR-REEL handle calibration? The AD7703BR-REEL features on-chip self-calibration to eliminate zero and gain errors and can also include external circuits in the calibration loop.
- What types of interfaces does the AD7703BR-REEL support? The AD7703BR-REEL supports flexible synchronous and asynchronous serial interfaces.
- What is the power consumption of the AD7703BR-REEL in standby mode? The power consumption in standby mode is 10 µW.
- Is the AD7703BR-REEL suitable for battery-powered applications? Yes, the AD7703BR-REEL is suitable for battery-powered applications due to its low power consumption.
- Can the AD7703BR-REEL be used in industrial process control? Yes, the AD7703BR-REEL is suitable for industrial process control applications requiring high accuracy.
- What is the construction of the AD7703BR-REEL? The AD7703BR-REEL is constructed using CMOS technology for low power dissipation.
