Overview
The AD7703AQ is a 20-bit, low-power, sigma-delta analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for high-precision measurement applications, offering excellent noise performance and low power consumption. The AD7703AQ is part of the AD7703 series, which includes various temperature range options, making it suitable for a wide range of industrial and instrumentation environments.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 20 bits |
| Temperature Range | -40°C to +85°C |
| Noise Free Resolution | 0.003 Q-20 |
| Input Voltage Range | ±2.5V or ±5V (differential) |
| Power Supply | Single supply: 5V or dual supply: ±2.5V |
| Power Consumption | Typically 3.5 mA at 5V supply |
| Clock Frequency | Up to 4.096 MHz |
| Output Data Rate | Up to 100 Hz |
Key Features
- High resolution: 20-bit sigma-delta ADC for precise measurements.
- Low power consumption: Suitable for battery-powered and power-sensitive applications.
- Low noise performance: High noise free resolution for accurate data acquisition.
- Flexible input range: Supports ±2.5V or ±5V differential input voltage range.
- Programmable output data rate: Allows for customization of the output data rate.
- On-chip clock oscillator: Simplifies system design by eliminating the need for an external clock source.
Applications
- Industrial process control and measurement systems.
- Medical devices requiring high precision and low noise.
- Automotive sensors and data acquisition systems.
- Aerospace and defense applications where high accuracy is critical.
- Scientific instruments and laboratory equipment.
Q & A
- What is the resolution of the AD7703AQ? The AD7703AQ has a resolution of 20 bits.
- What is the temperature range of the AD7703AQ? The temperature range is -40°C to +85°C.
- What is the typical power consumption of the AD7703AQ? The typical power consumption is 3.5 mA at a 5V supply.
- What is the maximum clock frequency for the AD7703AQ? The maximum clock frequency is up to 4.096 MHz.
- What are the supported input voltage ranges for the AD7703AQ? The device supports ±2.5V or ±5V differential input voltage ranges.
- Is the AD7703AQ suitable for battery-powered applications? Yes, due to its low power consumption, it is suitable for battery-powered applications.
- What is the output data rate of the AD7703AQ? The output data rate can be up to 100 Hz.
- Does the AD7703AQ have an on-chip clock oscillator? Yes, it has an on-chip clock oscillator.
- What are some common applications of the AD7703AQ? Common applications include industrial process control, medical devices, automotive sensors, aerospace, and scientific instruments.
- Where can I find detailed specifications for the AD7703AQ? Detailed specifications can be found in the datasheet available on the Analog Devices website or through authorized distributors like Digi-Key and Mouser.
