Overview
The AD7703AR is a high-precision, 20-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed for applications requiring high accuracy and reliability in converting analog signals to digital data. The AD7703AR features a sigma-delta architecture, which ensures high resolution and low noise performance. It is packaged in a 20-SOIC (Small Outline Integrated Circuit) package, making it suitable for a variety of industrial and medical applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package | 20-SOIC (0.295", 7.50mm Width) |
| Number of Bits | 20 |
| Sampling Rate (Per Second) | 4k |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Data Interface | SPI |
| Configuration | S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| Operating Temperature | -40°C ~ 85°C |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Lead Free Status / RoHS Status | Contains lead / RoHS non-compliant |
Key Features
- High-resolution 20-bit sigma-delta ADC for precise analog-to-digital conversion.
- Single-ended input with a sampling rate of up to 4 kHz.
- SPI data interface for easy communication with microcontrollers or other digital systems.
- External reference input for flexible system design.
- Operating temperature range of -40°C to 85°C, making it suitable for various environmental conditions.
- Compact 20-SOIC package for space-efficient designs.
Applications
The AD7703AR is versatile and can be used in a variety of applications, including:
- Industrial process control systems where high accuracy and reliability are crucial.
- Medical devices such as patient monitoring systems and diagnostic equipment.
- Automotive systems for sensor data acquisition.
- Test and measurement equipment requiring high-resolution ADCs.
- Environmental monitoring systems for precise data collection.
Q & A
- What is the resolution of the AD7703AR ADC?
The AD7703AR has a resolution of 20 bits. - What is the sampling rate of the AD7703AR?
The sampling rate of the AD7703AR is up to 4 kHz. - What type of data interface does the AD7703AR use?
The AD7703AR uses an SPI (Serial Peripheral Interface) data interface. - Is the AD7703AR RoHS compliant?
No, the AD7703AR contains lead and is not RoHS compliant. - What is the operating temperature range of the AD7703AR?
The operating temperature range is -40°C to 85°C. - How many inputs does the AD7703AR have?
The AD7703AR has one single-ended input. - What is the architecture of the AD7703AR ADC?
The AD7703AR uses a sigma-delta architecture. - What is the reference type for the AD7703AR?
The AD7703AR uses an external reference. - What is the package type of the AD7703AR?
The AD7703AR is packaged in a 20-SOIC (Small Outline Integrated Circuit) package. - What are some common applications of the AD7703AR?
The AD7703AR is commonly used in industrial process control, medical devices, automotive systems, test and measurement equipment, and environmental monitoring systems.
