AD7478WARTZ-RL7

Product Overview

Category

The AD7478WARTZ-RL7 belongs to the category of analog-to-digital converters (ADCs).

Use

It is primarily used for converting analog signals into digital data, making it suitable for various applications that require precise and accurate measurements.

Characteristics

• High resolution: The AD7478WARTZ-RL7 offers a resolution of 12 bits, ensuring accurate conversion of analog signals.
• Low power consumption: It operates at low power levels, making it energy-efficient and suitable for battery-powered devices.
• Fast conversion rate: With a maximum conversion rate of 1 MSPS (mega samples per second), it can quickly process analog signals.
• Wide input voltage range: The ADC can handle input voltages ranging from 0V to Vref, providing flexibility in signal acquisition.
• Small package size: The AD7478WARTZ-RL7 comes in a compact package, enabling its use in space-constrained applications.

Package and Quantity

The AD7478WARTZ-RL7 is available in a small form factor package known as Thin SOT-23. It is typically sold in reels containing a specified quantity, such as 3000 units per reel.

Specifications

• Resolution: 12 bits
• Conversion Rate: Up to 1 MSPS
• Input Voltage Range: 0V to Vref
• Power Supply: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Package Type: Thin SOT-23

Pin Configuration

The AD7478WARTZ-RL7 has a total of 6 pins, which are assigned specific functions:

1. VDD: Power supply pin (+2.7V to +5.25V)
2. VREF: Reference voltage input pin
3. AGND: Analog ground pin
4. VIN: Analog input pin
5. CS: Chip select input pin
6. DOUT: Digital output pin

Functional Features

• High accuracy: The AD7478WARTZ-RL7 provides precise and reliable conversion of analog signals, ensuring accurate data acquisition.
• Serial interface: It utilizes a serial interface (SPI) for communication with microcontrollers or other digital devices, simplifying integration into various systems.
• Low power consumption: With its low power operation, it is suitable for battery-powered applications where energy efficiency is crucial.
• Flexible input range: The ADC can handle a wide range of input voltages, allowing for versatile signal acquisition.

Advantages and Disadvantages

Advantages

• High resolution and accuracy
• Fast conversion rate
• Low power consumption
• Compact package size
• Wide input voltage range

Disadvantages

• Limited number of channels (single-channel ADC)
• Requires an external reference voltage (VREF)

Working Principles

The AD7478WARTZ-RL7 operates based on the successive approximation register (SAR) architecture. It samples the analog input voltage and converts it into a digital representation using a binary search algorithm. The internal circuitry compares the input voltage against a reference voltage and determines the digital code that represents the input value.

Application Field Plans

The AD7478WARTZ-RL7 finds applications in various fields, including: 1. Industrial automation: Used for precise measurement and control in industrial processes. 2. Medical devices: Enables accurate data acquisition in medical equipment such as patient monitoring systems. 3. Test and measurement instruments: Provides high-resolution measurements in laboratory equipment and data acquisition systems. 4. Portable devices: Suitable for battery-powered devices like handheld meters and portable data loggers.

Alternative Models

For those seeking alternative options, the following ADC models can be considered: - AD7476A: 12-bit ADC with similar features and package options. - AD7091R: 12-bit ADC with a different package type (SOT-23). - ADS7822: 12-bit ADC with a different interface (I2C).

These alternatives offer similar performance and functionality to the AD7478WARTZ-RL7 and can be chosen based on specific application requirements.

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