AD7894BRZ-10REEL

Product Overview

Category

AD7894BRZ-10REEL belongs to the category of analog-to-digital converters (ADCs).

Use

This product is primarily used for converting analog signals into digital data.

Characteristics

• High precision: The AD7894BRZ-10REEL offers a resolution of 10 bits, ensuring accurate conversion of analog signals.
• Fast conversion rate: With a maximum conversion time of 1.5 microseconds, this ADC provides real-time data acquisition.
• Low power consumption: The device operates at low power levels, making it suitable for battery-powered applications.
• Wide input voltage range: It can handle input voltages ranging from 0V to Vref, allowing for versatile signal conversion.

Package and Quantity

The AD7894BRZ-10REEL comes in a small outline integrated circuit (SOIC) package. It is available in reel packaging with a quantity of 250 units per reel.

Specifications

• Resolution: 10 bits
• Conversion Time: 1.5 μs (max)
• Input Voltage Range: 0V to Vref
• Power Supply: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AD7894BRZ-10REEL has a total of 8 pins arranged as follows:

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| | --| |-- | | --| |-- |_______| ```

Pin Number | Pin Name | Description --- | --- | --- 1 | VDD | Power supply voltage 2 | VREF | Reference voltage input 3 | AGND | Analog ground 4 | VIN | Analog input voltage 5 | CS | Chip select input 6 | SCLK | Serial clock input 7 | SDATA | Serial data output 8 | DGND | Digital ground

Functional Features

• High-speed serial interface: The AD7894BRZ-10REEL utilizes a serial interface for communication, enabling easy integration with microcontrollers and other digital systems.
• Single-ended analog input: It supports single-ended analog input signals, simplifying the signal conditioning requirements.
• On-chip reference: The device includes an internal reference voltage source, eliminating the need for an external reference.

Advantages and Disadvantages

Advantages

• High precision and accuracy in analog-to-digital conversion.
• Fast conversion time allows for real-time data acquisition.
• Low power consumption makes it suitable for battery-powered applications.
• Wide input voltage range provides flexibility in signal conversion.

Disadvantages

• Limited resolution of 10 bits may not be sufficient for certain high-precision applications.
• Lack of differential input capability restricts its use in differential signal processing.

Working Principles

The AD7894BRZ-10REEL operates based on the successive approximation register (SAR) architecture. It samples the analog input voltage and performs a binary search to determine the digital representation of the input signal. The internal ADC circuitry converts the analog voltage into a digital value using a comparator and a digital-to-analog converter (DAC).

Application Field Plans

The AD7894BRZ-10REEL 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 and analysis of physiological signals. 3. Data acquisition systems: Provides reliable and fast data conversion for scientific research and instrumentation. 4. Automotive electronics: Used in automotive sensors and control units for signal processing.

Alternative Models

1. AD7894BRZ-12REEL: Similar to AD7894BRZ-10REEL but with a higher resolution of 12 bits.
2. AD7894BRZ-8REEL: Similar to AD7894BRZ-10REEL but with a lower resolution of 8 bits.
3. AD7894BRZ-16REEL: Similar to AD7894BRZ-10REEL but with a higher resolution of 16 bits.

These alternative models offer different resolutions to suit specific application requirements.

In conclusion, the AD7894BRZ-10REEL is a high-precision analog-to-digital converter with fast conversion time and low power consumption. It finds applications in various fields and has alternative models with different resolutions available.