AD7822BRU-REEL

Product Overview

Category

The AD7822BRU-REEL belongs to the category of analog-to-digital converters (ADCs).

Use

It is primarily used for converting analog signals into digital data.

Characteristics

• High-resolution conversion
• Low power consumption
• Fast conversion speed
• Wide input voltage range

Package

The AD7822BRU-REEL comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of the AD7822BRU-REEL is its ability to accurately convert analog signals into digital form, making it suitable for various applications.

Packaging/Quantity

The AD7822BRU-REEL is typically packaged in reels and is available in large quantities.

Specifications

• Resolution: 12 bits
• Input Voltage Range: 0V to Vref
• Conversion Time: 1.5 µs
• Power Supply: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AD7822BRU-REEL has the following pin configuration:

1. VDD: Power supply voltage
2. VREF: Reference voltage input
3. AGND: Analog ground
4. REFOUT: Reference output
5. VIN: Analog input voltage
6. DOUT: Digital output
7. SCLK: Serial clock input
8. CS: Chip select input
9. DGND: Digital ground

Functional Features

• High-resolution conversion: The AD7822BRU-REEL offers 12-bit resolution, ensuring accurate conversion of analog signals.
• Low power consumption: It operates with low power consumption, making it suitable for battery-powered devices.
• Fast conversion speed: With a conversion time of 1.5 µs, it can quickly convert analog signals into digital data.
• Wide input voltage range: The AD7822BRU-REEL supports a wide input voltage range from 0V to Vref.

Advantages and Disadvantages

Advantages

• High-resolution conversion ensures accurate results.
• Low power consumption extends battery life.
• Fast conversion speed allows for real-time applications.
• Wide input voltage range provides flexibility in signal acquisition.

Disadvantages

• Limited to 12-bit resolution, which may not be sufficient for some high-precision applications.
• Requires an external reference voltage for accurate conversions.

Working Principles

The AD7822BRU-REEL works by sampling the analog input voltage and converting it into a digital representation using its internal ADC circuitry. It utilizes a successive approximation register (SAR) architecture to achieve high-resolution conversion. The converted digital data is then output through the DOUT pin.

Detailed Application Field Plans

The AD7822BRU-REEL finds applications in various fields, including:

1. Industrial automation: Used for monitoring and control systems that require precise analog-to-digital conversion.
2. Medical devices: Enables accurate measurement of physiological signals for diagnostic purposes.
3. Data acquisition systems: Provides reliable conversion of analog signals into digital form for further processing and analysis.
4. Instrumentation: Used in test and measurement equipment to capture and analyze analog signals.

Detailed and Complete Alternative Models

1. AD7821BRU-REEL: Similar to the AD7822BRU-REEL but with 10-bit resolution.
2. AD7823BRU-REEL: Higher-resolution variant with 14-bit conversion capability.
3. AD7824BRU-REEL: Offers additional features such as built-in temperature sensor and programmable gain amplifier.

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