AD7994BRU-0REEL

Product Overview

Category

The AD7994BRU-0REEL 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 accurate and precise measurements.

Characteristics

• High resolution: The AD7994BRU-0REEL offers a resolution of up to 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.
• Small package size: The AD7994BRU-0REEL comes in a compact package, allowing for easy integration into space-constrained designs.
• Wide input voltage range: It can handle a wide range of input voltages, enabling flexibility in different applications.

Package

The AD7994BRU-0REEL is available in a small outline integrated circuit (SOIC) package. This package type provides good thermal performance and ease of soldering.

Essence

The essence of the AD7994BRU-0REEL lies in its ability to accurately convert analog signals into digital data, facilitating precise measurements and control in various applications.

Packaging/Quantity

The AD7994BRU-0REEL is typically packaged in reels, with each reel containing a specific quantity of units. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Resolution: 12 bits
• Input Voltage Range: 0V to VREF
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Conversion Time: 1.3µs per channel

Detailed Pin Configuration

The AD7994BRU-0REEL has a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VDD: Power supply voltage
2. GND: Ground reference
3. SDA: Serial data input/output
4. SCL: Serial clock input
5. ADDR0: Address selection bit 0
6. ADDR1: Address selection bit 1
7. ADDR2: Address selection bit 2
8. ALERT: Alert output
9. AIN0: Analog input channel 0
10. AIN1: Analog input channel 1
11. AIN2: Analog input channel 2
12. AIN3: Analog input channel 3
13. REF: Reference voltage input
14. AGND: Analog ground
15. VIO: Digital I/O voltage
16. VREF: Reference voltage output

Functional Features

• Multiple input channels: The AD7994BRU-0REEL supports up to four analog input channels, allowing for simultaneous conversion of multiple signals.
• I2C interface: It utilizes the I2C communication protocol, enabling easy integration with microcontrollers and other digital devices.
• Programmable gain amplifier: The ADC includes a programmable gain amplifier that allows for amplification of weak input signals, enhancing measurement accuracy.
• Interrupt functionality: The AD7994BRU-0REEL features an interrupt pin that can be used to trigger events based on user-defined thresholds.

Advantages and Disadvantages

Advantages

• High resolution ensures accurate conversion of analog signals.
• Low power consumption makes it suitable for battery-powered applications.
• Small package size enables easy integration into space-constrained designs.
• Wide input voltage range provides flexibility in various applications.

Disadvantages

• Limited number of input channels may not be sufficient for certain applications requiring more inputs.
• Higher cost compared to lower-resolution ADCs.

Working Principles

The AD7994BRU-0REEL 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 of the input signal. The internal circuitry includes a sample-and-hold amplifier, a SAR ADC core, and a control logic unit.

Detailed Application Field Plans

The AD7994BRU-0REEL finds applications in various fields, including but not limited to: - Industrial automation: Used for precise measurement and control in industrial processes. - Medical devices: Enables accurate data acquisition in medical equipment such as patient monitoring systems. - Test and measurement instruments: Provides high-resolution measurements in laboratory equipment. - Energy management systems: Facilitates accurate energy monitoring and control in smart grid applications.

Detailed and Complete Alternative Models

1. AD7995: Similar to AD7994BRU-0REEL but with additional input channels.
2. AD7993: Lower-resolution version of AD7994BRU-0REEL, suitable for cost-sensitive applications.
3. ADS1115: A 16