AD7710AR-REEL7

Product Overview

Category: Integrated Circuit (IC)

Use: The AD7710AR-REEL7 is a high-resolution, sigma-delta analog-to-digital converter (ADC) designed for precision measurement applications. It is commonly used in industrial control systems, medical equipment, and scientific instruments.

Characteristics: - High resolution: The AD7710AR-REEL7 offers 24-bit resolution, allowing for precise measurements. - Sigma-delta architecture: This ADC utilizes a sigma-delta modulation technique to achieve high accuracy and low noise performance. - Low power consumption: The device operates at low power levels, making it suitable for battery-powered applications. - On-chip programmable gain amplifier (PGA): The integrated PGA allows for signal amplification and adjustment of the input range. - Serial interface: The ADC communicates with the microcontroller or host system through a serial interface, providing ease of integration.

Package: The AD7710AR-REEL7 is available in a small outline integrated circuit (SOIC) package, which ensures easy mounting on printed circuit boards.

Essence: The essence of the AD7710AR-REEL7 lies in its ability to provide accurate and reliable analog-to-digital conversion for various precision measurement applications.

Packaging/Quantity: The AD7710AR-REEL7 is typically sold in reels containing a specified quantity of ICs, ensuring convenient handling during manufacturing processes.

Specifications

• Resolution: 24 bits
• Input voltage range: ±2.5V
• Conversion rate: Up to 19.2 kSPS (samples per second)
• Operating temperature range: -40°C to +85°C
• Supply voltage: +2.7V to +5.25V
• Power consumption: 1.3mW (typical)

Pin Configuration

The AD7710AR-REEL7 features a 20-pin SOIC package with the following pin configuration:

1. VDD: Positive power supply
2. VREF: Reference voltage input
3. AGND: Analog ground
4. AVDD: Positive analog power supply
5. DVDD: Positive digital power supply
6. DGND: Digital ground
7. CLK: Serial clock input
8. DIN: Serial data input
9. DOUT: Serial data output
10. CS: Chip select input
11. RDY: Ready output
12. AIN1(+) and AIN1(-): Differential analog input 1
13. AIN2(+) and AIN2(-): Differential analog input 2
14. AIN3(+) and AIN3(-): Differential analog input 3
15. AIN4(+) and AIN4(-): Differential analog input 4
16. REFOUT: Reference voltage output
17. REFIN: Reference voltage input
18. EXTERNAL CAPACITOR CONNECTIONS: Connect external capacitors for on-chip filtering
19. NC: No connection
20. GND: Ground

Functional Features

• High-resolution ADC: The AD7710AR-REEL7 provides 24-bit resolution, enabling precise measurement of analog signals.
• Programmable gain amplifier (PGA): The integrated PGA allows for signal amplification and adjustment of the input range to accommodate various input signal levels.
• Low noise performance: The sigma-delta architecture ensures low noise and high accuracy in the conversion process.
• Serial interface: The ADC communicates with the microcontroller or host system through a serial interface, simplifying integration into existing systems.
• On-chip reference voltage: The device includes an on-chip reference voltage source, eliminating the need for an external reference.

Advantages and Disadvantages

Advantages: - High resolution for accurate measurements - Low power consumption - Integrated programmable gain amplifier - Serial interface for easy integration - On-chip reference voltage source

Disadvantages: - Limited input voltage range (±2.5V) - Relatively slow conversion rate compared to some other ADCs

Working Principles

The AD7710AR-REEL7 utilizes a sigma-delta modulation technique to achieve high-resolution analog-to-digital conversion. It oversamples the input signal at a high frequency and applies digital filtering to obtain the desired resolution. The converted digital output is then provided through the serial interface.

Detailed Application Field Plans

The AD7710AR-REEL7 finds applications in various fields, including: 1. Industrial control systems: Used for precise measurement and control of physical parameters in manufacturing processes. 2. Medical equipment: Enables accurate measurement of vital signs and other medical parameters. 3. Scientific instruments: Suitable for scientific research and experimentation that require high-precision measurements. 4. Data acquisition systems: Provides high-resolution analog-to-digital conversion for capturing and