AD7928WBRUZ-REEL

Product Overview

Category

AD7928WBRUZ-REEL belongs to the category of analog-to-digital converters (ADCs).

Use

This product is used to convert analog signals into digital data for processing and analysis in various applications.

Characteristics

• High resolution: The AD7928WBRUZ-REEL offers a resolution of 12 bits, ensuring accurate conversion of analog signals.
• Fast conversion rate: With a maximum sampling rate of 1 MSPS (mega samples per second), it can quickly capture and convert analog signals.
• Low power consumption: The ADC operates at low power, making it suitable for battery-powered devices.
• Wide input voltage range: It can handle a wide range of input voltages, allowing for versatile usage.
• Serial interface: The ADC utilizes a serial interface for easy integration with microcontrollers and other digital systems.

Package

The AD7928WBRUZ-REEL comes in a small form factor package, which is RoHS compliant and lead-free. This package ensures ease of handling and compatibility with modern manufacturing processes.

Essence

The essence of the AD7928WBRUZ-REEL lies in its ability to accurately convert analog signals into digital data, enabling precise measurements and analysis in various applications.

Packaging/Quantity

The product is typically available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Resolution: 12 bits
• Sampling Rate: Up to 1 MSPS
• Input Voltage Range: ±VREF
• Power Supply: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial (SPI/I2C)

Detailed Pin Configuration

The AD7928WBRUZ-REEL has a total of 16 pins, which are assigned specific functions. The pin configuration is as follows:

1. VDD: Power supply voltage
2. VREF: Reference voltage for ADC conversion
3. AGND: Analog ground
4. REFOUT: Buffered reference output
5. VIN: Analog input voltage
6. SCLK: Serial clock input
7. SDI: Serial data input
8. SDO: Serial data output
9. CS: Chip select input
10. DGND: Digital ground
11. DOUT/DRDY: Data output or data-ready indicator
12. CONVST: Conversion start control
13. PD: Power-down control
14. RDY: Ready indicator
15. REFIN: External reference input
16. VIO: Digital I/O voltage

Functional Features

• High-resolution conversion: The AD7928WBRUZ-REEL provides accurate 12-bit analog-to-digital conversion.
• Flexible interface options: It supports both SPI and I2C serial interfaces, allowing easy integration with various microcontrollers and digital systems.
• Low power consumption: The ADC operates at low power, making it suitable for battery-powered applications.
• Internal reference: It includes an internal reference voltage source, eliminating the need for an external reference in many cases.
• Programmable features: The ADC offers programmable gain and offset calibration options for enhanced accuracy.

Advantages and Disadvantages

Advantages

• High resolution ensures precise measurement and analysis.
• Fast conversion rate allows for real-time data acquisition.
• Wide input voltage range accommodates diverse signal sources.
• Low power consumption extends battery life in portable devices.
• Small form factor package enables space-efficient designs.
• Programmable features enhance flexibility and accuracy.

Disadvantages

• Limited to 12-bit resolution, which may not be sufficient for certain high-precision applications.
• Requires external components for voltage reference if higher accuracy is desired.

Working Principles

The AD7928WBRUZ-REEL operates based on the successive approximation register (SAR) architecture. It samples the analog input voltage, converts it into a digital representation using an internal ADC core, and outputs the result through the serial interface. The conversion process involves comparing the input voltage with a reference voltage and iteratively adjusting the digital code until the conversion is complete.

Detailed Application Field Plans

The AD7928WBRUZ-REEL finds application in various fields, including but not limited to:

1. Industrial automation: Used for precise measurement and control of analog signals in industrial processes.
2. Medical devices: Enables accurate data acquisition in medical instruments such as patient monitors and diagnostic equipment.
3. Test and measurement equipment: Provides high-resolution conversion for accurate measurements in laboratory and field testing.
4. Communication systems: Used for signal processing and analysis in wireless communication systems.
5. Automotive electronics: Enables analog-to-digital conversion in automotive sensors and control systems.

Detailed and Complete Alternative Models

1. AD7920: