AD7172-2BRUZ-RL7

Product Overview

Category

The AD7172-2BRUZ-RL7 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 various applications in industries such as telecommunications, industrial automation, and medical devices.

Characteristics

• High-resolution: The AD7172-2BRUZ-RL7 offers a resolution of up to 24 bits, ensuring accurate conversion of analog signals.
• Low noise: It features a low-noise architecture, enabling precise measurements even in noisy environments.
• High-speed conversion: With a maximum sampling rate of 250 kilosamples per second (ksps), it can handle fast-changing analog signals efficiently.
• Flexible input range: The ADC supports both single-ended and differential input configurations, providing versatility in signal acquisition.
• Low power consumption: The device is designed to operate with low power consumption, making it suitable for battery-powered applications.

Package and Quantity

The AD7172-2BRUZ-RL7 comes in a small outline integrated circuit (SOIC) package. It is available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Resolution: Up to 24 bits
• Input voltage range: ±VREF
• Sampling rate: Up to 250 ksps
• Power supply: 2.7 V to 5.25 V
• Operating temperature range: -40°C to +85°C
• Interface: Serial peripheral interface (SPI)

Pin Configuration

The AD7172-2BRUZ-RL7 has a total of 32 pins, which are assigned specific functions. 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. MISO: Master In Slave Out (SPI interface)
17. MOSI: Master Out Slave In (SPI interface)
18. SDO: Serial data output

Functional Features

• Programmable gain amplifier (PGA): The AD7172-2BRUZ-RL7 includes a PGA that allows users to adjust the gain of the input signal, enhancing flexibility in signal conditioning.
• On-chip digital filters: It incorporates digital filters to reduce noise and improve the accuracy of the converted data.
• Internal temperature sensor: The ADC features an integrated temperature sensor, enabling accurate temperature measurements alongside analog-to-digital conversion.
• Flexible power modes: It offers various power modes, including standby and power-down modes, allowing for efficient power management.

Advantages and Disadvantages

Advantages

• High resolution and accuracy
• Low noise performance
• Wide input voltage range
• Versatile input configurations
• Low power consumption

Disadvantages

• Limited maximum sampling rate compared to some other ADCs
• Requires external references for optimal performance

Working Principles

The AD7172-2BRUZ-RL7 operates based on the successive approximation register (SAR) architecture. It samples the analog input signal, converts it into a digital representation using the internal ADC core, and then outputs the converted data through the serial interface.

Detailed Application Field Plans

The AD7172-2BRUZ-RL7 can be applied in various fields, including: 1. Industrial automation: Precise measurement and control systems 2. Telecommunications: Signal processing and data acquisition 3. Medical devices: Biomedical signal analysis and monitoring 4. Test and measurement equipment: High-accuracy data acquisition

Alternative Models

For those seeking alternative options, the following models are worth considering: - AD7172-4BRUZ-RL7: Similar to AD7172-2BRUZ-RL7 but with four differential input channels - AD7192-2BRUZ-RL7: A higher-resolution ADC with 24-bit resolution and additional features

In conclusion, the AD7172-2BRUZ-RL7 is a high-resolution analog-to-digital converter suitable for various applications. Its low noise, flexible input range, and low power consumption