AD7845SE/883B

Product Overview

Category

The AD7845SE/883B belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for analog-to-digital conversion in various electronic systems.

Characteristics

• High precision: The AD7845SE/883B offers high-resolution analog-to-digital conversion, ensuring accurate measurement and control.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Low power consumption: This IC is designed to operate efficiently with minimal power consumption.
• Fast conversion speed: The AD7845SE/883B provides rapid conversion rates, enabling real-time data acquisition.

Package

The AD7845SE/883B is available in a compact and durable package, ensuring easy integration into electronic systems.

Essence

The essence of the AD7845SE/883B lies in its ability to convert analog signals into digital data with high precision and efficiency.

Packaging/Quantity

This product is typically packaged in reels or tubes, with varying quantities depending on customer requirements.

Specifications

• Resolution: 12 bits
• Input Voltage Range: ±10V
• Conversion Time: 2.5 µs
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage: +5V
• Power Consumption: 10 mW (typical)

Detailed Pin Configuration

The AD7845SE/883B features a 28-pin dual in-line package (DIP) with the following pin configuration:

1. VREF
2. AGND
3. DGND
4. REFOUT
5. REFIN
6. CS
7. RD
8. WR
9. BUSY
10. D0
11. D1
12. D2
13. D3
14. D4
15. D5
16. D6
17. D7
18. D8
19. D9
20. D10
21. D11
22. VDD
23. VSS
24. A0
25. A1
26. A2
27. A3
28. A4

Functional Features

• High-resolution analog-to-digital conversion
• Serial interface for easy integration with microcontrollers and other digital systems
• Internal reference voltage generation for accurate measurements
• Fast conversion time for real-time applications
• Low power consumption for energy-efficient operation

Advantages and Disadvantages

Advantages

• High precision and accuracy in analog-to-digital conversion
• Wide input voltage range allows for versatile applications
• Compact package for easy integration into electronic systems
• Low power consumption ensures energy efficiency

Disadvantages

• Limited resolution compared to higher-end models
• Requires external components for certain applications
• Relatively higher cost compared to lower-end alternatives

Working Principles

The AD7845SE/883B utilizes a successive approximation register (SAR) architecture to convert analog signals into digital data. It employs an internal reference voltage to establish the conversion range and compares the input voltage against a series of binary-weighted voltages. By iteratively adjusting the comparison, the IC determines the digital representation of the analog signal.

Detailed Application Field Plans

The AD7845SE/883B finds application in various fields, including: - Industrial automation - Data acquisition systems - Instrumentation and measurement equipment - Process control systems - Medical devices - Robotics

Detailed and Complete Alternative Models

• AD7865SE/883B: Similar to AD7845SE/883B but with higher resolution (16 bits)
• AD7825SE/883B: Lower-cost alternative with lower resolution (8 bits)
• AD7855SE/883B: Higher-speed alternative with faster conversion time (1 µs)

These alternative models offer different specifications and features to cater to specific application requirements.

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