AD7887BRZ-REEL

Product Overview

Category

The AD7887BRZ-REEL belongs to the category of analog-to-digital converters (ADCs).

Use

This product is primarily used for converting analog signals into digital data, making it suitable for a wide range of applications in various industries.

Characteristics

• High-resolution: The AD7887BRZ-REEL offers a high-resolution conversion, ensuring accurate and precise digital representation of analog signals.
• Fast conversion speed: This ADC provides fast conversion times, enabling real-time data acquisition.
• Low power consumption: The AD7887BRZ-REEL is designed to operate with low power consumption, making it energy-efficient.
• Wide input voltage range: It can handle a wide range of input voltages, allowing for versatile usage.
• Small package size: The compact package of the AD7887BRZ-REEL makes it suitable for space-constrained applications.

Package and Quantity

The AD7887BRZ-REEL is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels containing a specific quantity of units, which may vary depending on the supplier.

Specifications

• Resolution: 12 bits
• Input Voltage Range: 0V to Vref
• Conversion Time: 1.2 µs (typical)
• Power Supply: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)

Pin Configuration

The AD7887BRZ-REEL has a total of 8 pins arranged as follows:

┌───┬───┐ │ 1 │ 8 │ ├───┼───┤ │ 2 │ 7 │ ├───┼───┤ │ 3 │ 6 │ ├───┼───┤ │ 4 │ 5 │ └───┴───┘

1. VDD: Power supply voltage input
2. GND: Ground reference
3. DIN: Serial data input
4. SCLK: Serial clock input
5. CS: Chip select input
6. DOUT: Serial data output
7. REF: Reference voltage input
8. AGND: Analog ground reference

Functional Features

• High-resolution conversion: The AD7887BRZ-REEL provides accurate and high-resolution analog-to-digital conversion.
• SPI interface: It utilizes the widely-used Serial Peripheral Interface (SPI) for communication with microcontrollers or other digital devices.
• Low power consumption: The ADC is designed to operate efficiently with low power consumption, making it suitable for battery-powered applications.
• Internal reference voltage: The AD7887BRZ-REEL includes an internal reference voltage source, eliminating the need for an external reference.

Advantages and Disadvantages

Advantages

• High-resolution conversion ensures precise and accurate digital representation of analog signals.
• Fast conversion speed allows for real-time data acquisition.
• Low power consumption makes it energy-efficient.
• Wide input voltage range enables versatile usage.
• Compact package size suits space-constrained applications.

Disadvantages

• Limited to 12-bit resolution, which may not be sufficient for certain high-precision applications.
• Requires an external microcontroller or digital device for control and data processing.

Working Principles

The AD7887BRZ-REEL operates based on the successive approximation register (SAR) architecture. It samples the analog input voltage and performs a series of comparisons to determine the digital representation. The internal circuitry then converts the analog signal into a 12-bit digital value using a binary search algorithm.

Application Field Plans

The AD7887BRZ-REEL can be used in various applications, including but not limited to: - Industrial automation - Data acquisition systems - Medical equipment - Instrumentation and measurement devices - Audio processing systems

Alternative Models

There are several alternative models available that offer similar functionality to the AD7887BRZ-REEL. Some notable alternatives include: - AD7887BRZ: Similar specifications and features, but without the reel packaging option. - AD7887BRZ-RL: Same as AD7887BRZ-REEL, but supplied in tape and reel packaging for automated assembly.

These alternative models can be considered based on specific requirements and availability.

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