AD7799BRU-REEL

Product Overview

Category

The AD7799BRU-REEL belongs to the category of integrated circuit (IC) devices.

Use

This IC is primarily used for precision analog-to-digital conversion applications.

Characteristics

• High resolution: The AD7799BRU-REEL offers a resolution of up to 24 bits, ensuring accurate conversion of analog signals.
• Low noise: It features low noise performance, enabling precise measurement in sensitive applications.
• Low power consumption: This IC is designed to operate with low power consumption, making it suitable for battery-powered devices.
• Flexible input configuration: The AD7799BRU-REEL supports various input configurations, including differential and single-ended modes.
• On-chip calibration: It incorporates on-chip calibration functionality, simplifying system calibration processes.

Package

The AD7799BRU-REEL is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the AD7799BRU-REEL lies in its ability to accurately convert analog signals into digital data, facilitating precise measurements in various applications.

Packaging/Quantity

This IC is typically packaged in reels, with a specific quantity per reel. Please refer to the manufacturer's documentation for detailed packaging information.

Specifications

• Resolution: Up to 24 bits
• Input voltage range: ±VREF
• Operating temperature range: -40°C to +85°C
• Supply voltage: 2.7V to 5.25V
• Conversion rate: Up to 470 samples per second (SPS)
• Interface: Serial peripheral interface (SPI)

Detailed Pin Configuration

The AD7799BRU-REEL has a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. AVDD: Analog power supply
2. AGND: Analog ground
3. DVDD: Digital power supply
4. DGND: Digital ground
5. AIN1(+) / AIN1(-): Differential analog input
6. AIN2(+) / AIN2(-): Differential analog input
7. REFOUT: Reference voltage output
8. REFIN: Reference voltage input
9. VBIAS: Bias voltage output
10. SCLK: Serial clock input
11. DIN: Serial data input
12. DOUT: Serial data output
13. CS: Chip select input
14. RDY: Ready output
15. IOVDD: I/O power supply
16. IODGND: I/O ground

Functional Features

• Programmable gain amplifier (PGA): The AD7799BRU-REEL includes a PGA that allows for amplification of the input signal, enhancing measurement accuracy.
• On-chip temperature sensor: It incorporates an on-chip temperature sensor, enabling temperature compensation in measurement applications.
• Internal reference voltage: The IC features an internal reference voltage source, eliminating the need for an external reference.
• Filter options: The AD7799BRU-REEL provides various filter options to reduce noise and enhance signal quality.

Advantages and Disadvantages

Advantages

• High resolution enables precise measurements.
• Low noise performance ensures accurate readings in sensitive applications.
• Low power consumption makes it suitable for battery-powered devices.
• Flexible input configuration supports different measurement scenarios.
• On-chip calibration simplifies system calibration processes.

Disadvantages

• Limited conversion rate compared to some other ICs in its class.
• Requires careful consideration of grounding and noise mitigation techniques for optimal performance.

Working Principles

The AD7799BRU-REEL operates based on the principle of sigma-delta modulation. It converts analog signals into digital data by oversampling the input signal and using a digital filter to extract the desired information. The IC employs a feedback loop that continuously adjusts the analog-to-digital conversion process to minimize errors and improve accuracy.

Detailed Application Field Plans

The AD7799BRU-REEL finds applications in various fields, including:

1. Industrial process control: It can be used for precise measurement and control of physical parameters such as temperature, pressure, and flow rate.
2. Medical instrumentation: The IC enables accurate measurement of vital signs and other physiological parameters in medical devices.
3. Weighing scales: It is suitable for high-precision weighing scales, ensuring accurate weight measurements.
4. Data acquisition systems: The AD7799BRU-REEL can be integrated into data acquisition systems to convert analog signals into digital data for further processing and analysis.

Detailed and Complete Alternative Models

1. AD7798: Similar to the AD7799BRU-REEL, but with a lower resolution of 16 bits.
2. AD7780: A lower-resolution alternative with 24-bit resolution and simplified features.
3. ADS124S08