AD7865ASZ-2

Product Overview

Category

AD7865ASZ-2 belongs to the category of Analog-to-Digital Converters (ADCs).

Use

The AD7865ASZ-2 is used for converting analog signals into digital data. It is commonly employed in various applications that require precise and accurate conversion of analog signals, such as industrial automation, medical equipment, and communication systems.

Characteristics

• High resolution: The AD7865ASZ-2 offers a resolution of 16 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 convert analog signals into digital data.
• Low power consumption: The device operates at low power, making it suitable for battery-powered applications.
• Wide input voltage range: It can handle a wide range of input voltages, allowing flexibility in signal acquisition.

Package

The AD7865ASZ-2 comes in a small outline package (SOIC) with 28 pins. This package provides ease of integration into various circuit designs.

Essence

The essence of the AD7865ASZ-2 lies in its ability to accurately convert analog signals into digital data, enabling precise measurements and control in various applications.

Packaging/Quantity

The AD7865ASZ-2 is typically available in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Resolution: 16 bits
• Sampling Rate: Up to 1 MSPS
• Input Voltage Range: ±10V
• Power Supply: +5V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AD7865ASZ-2 has a total of 28 pins. The pin configuration is as follows:

1. VREF-
2. VREF+
3. AGND
4. DGND
5. REFOUT
6. REFIN
7. AIN1
8. AIN2
9. AIN3
10. AIN4
11. AIN5
12. AIN6
13. AIN7
14. AIN8
15. AIN9
16. AIN10
17. AIN11
18. AIN12
19. AIN13
20. AIN14
21. AIN15
22. AIN16
23. CS
24. SCLK
25. SDATA
26. RD
27. WR
28. RESET

Functional Features

• High-resolution conversion: The AD7865ASZ-2 offers 16-bit resolution, ensuring accurate representation of analog signals.
• Fast conversion rate: With a maximum sampling rate of 1 MSPS, it can quickly capture and convert analog signals into digital data.
• Low power consumption: The device operates at low power, making it suitable for power-sensitive applications.
• Flexible input voltage range: The AD7865ASZ-2 can handle a wide range of input voltages, providing versatility in signal acquisition.

Advantages and Disadvantages

Advantages

• High resolution ensures accurate conversion of analog signals.
• Fast conversion rate allows for real-time data acquisition.
• Low power consumption makes it suitable for battery-powered applications.
• Wide input voltage range provides flexibility in signal acquisition.

Disadvantages

• Limited to 16-bit resolution, which may not be sufficient for certain high-precision applications.
• Requires an external reference voltage for accurate conversion.

Working Principles

The AD7865ASZ-2 utilizes a successive approximation register (SAR) architecture for analog-to-digital conversion. It samples the analog input voltage and compares it to a reference voltage. By iteratively adjusting the digital code, it converges to a value that represents the analog input accurately.

Detailed Application Field Plans

The AD7865ASZ-2 finds applications in various fields, including: 1. Industrial automation: It can be used for precise measurement and control of analog signals in industrial processes. 2. Medical equipment: The device enables accurate conversion of physiological signals for medical monitoring and diagnostics. 3. Communication systems: It is employed in communication systems for signal processing and data acquisition.

Detailed and Complete Alternative Models

1. AD7866: Similar to AD7865ASZ-2 but with 18-bit resolution.
2. AD7864: A lower-resolution version with 12-bit resolution.
3. AD7867: Offers higher sampling rate of 2 MSPS.

These alternative models provide options with varying resolutions and features to suit different application requirements.

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