AD7172-2BRUZ

Product Overview

Category

The AD7172-2BRUZ belongs to the category of analog-to-digital converters (ADCs).

Use

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

Characteristics

• High-resolution ADC with 24-bit resolution
• Low noise and high accuracy
• Flexible input range selection
• On-chip programmable gain amplifier (PGA)
• Integrated reference voltage generator

Package

The AD7172-2BRUZ is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the AD7172-2BRUZ lies in its ability to accurately convert analog signals into digital data, making it suitable for precise measurement and control applications.

Packaging/Quantity

The AD7172-2BRUZ is typically packaged in reels and comes in quantities of 250 units per reel.

Specifications

• Resolution: 24 bits
• Input Channels: 8 differential or 16 single-ended
• Input Voltage Range: ±VREF
• Conversion Rate: Up to 250 kSPS (samples per second)
• Power Supply: 2.7 V to 5.25 V
• Operating Temperature Range: -40°C to +105°C

Detailed Pin Configuration

The AD7172-2BRUZ has a total of 32 pins. The pin configuration is as follows:

1. AVDD: Analog power supply
2. AGND: Analog ground
3. REFIN1(+): Positive reference voltage input
4. REFIN1(-): Negative reference voltage input
5. REFIN2(+): Positive reference voltage input
6. REFIN2(-): Negative reference voltage input
7. AIN1(+) to AIN8(+): Positive analog input channels
8. AIN1(-) to AIN8(-): Negative analog input channels
9. DVDD: Digital power supply
10. DGND: Digital ground
11. DOUT/RDY: Data output or ready signal
12. DIN: Serial data input
13. SCLK: Serial clock input
14. CS: Chip select input
15. RESET: Reset input
16. EXTERNAL OSCILLATOR: External oscillator input

Functional Features

• High-resolution conversion for accurate measurement
• Programmable gain amplifier for flexible input range selection
• Integrated reference voltage generator for simplified design
• Low noise and high accuracy for precise data acquisition
• Flexible serial interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages

• High resolution enables precise measurement
• Low noise ensures accurate data acquisition
• Flexible input range selection enhances versatility
• Integrated reference voltage generator simplifies design

Disadvantages

• Relatively higher cost compared to lower-resolution ADCs
• Requires external components for proper operation

Working Principles

The AD7172-2BRUZ utilizes a sigma-delta architecture to achieve high-resolution analog-to-digital conversion. It employs oversampling and noise shaping techniques to improve the effective resolution of the converter. The input signal is amplified by the programmable gain amplifier before being converted into digital data. The integrated reference voltage generator provides a stable reference voltage for accurate conversion.

Detailed Application Field Plans

The AD7172-2BRUZ finds applications in various fields, including:

1. Industrial automation: Precise measurement and control systems
2. Medical devices: High-accuracy data acquisition for diagnostics
3. Test and measurement equipment: Accurate signal analysis and processing
4. Energy management systems: Monitoring and control of energy consumption
5. Scientific research: Data acquisition in research experiments

Detailed and Complete Alternative Models

1. AD7172-4BRUZ: Similar to AD7172-2BRUZ but with 4 differential or 8 single-ended input channels.
2. AD7192-2BRUZ: Higher-resolution ADC with 24-bit resolution and additional features.
3. AD7124-4BRUZ: Lower-resolution ADC with 18-bit resolution and lower cost.

(Note: This is not an exhaustive list of alternative models, but provides a few examples.)

In conclusion, the AD7172-2BRUZ is a high-resolution analog-to-digital converter that offers accurate conversion of analog signals into digital data. Its flexible input range selection, integrated reference voltage generator, and low noise characteristics make it suitable for various applications in industrial automation, medical devices, test and measurement equipment, energy management systems, and scientific research. While it has advantages such as high resolution and low noise, it may have a higher cost compared to lower-resolution ADCs and requires external components for proper operation.