AD7124-8BCPZ

Product Overview

Category

AD7124-8BCPZ belongs to the category of integrated analog-to-digital converters (ADCs).

Use

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

Characteristics

• High-resolution: AD7124-8BCPZ offers a resolution of up to 24 bits, ensuring accurate conversion of analog signals.
• Low noise: The ADC has a low noise performance, enabling precise measurement even in noisy environments.
• Low power consumption: It operates at low power, making it suitable for battery-powered devices.
• Flexible input configuration: The device supports various input configurations, allowing for versatile usage.

Package

AD7124-8BCPZ comes in a small form factor package, which is easy to integrate into different systems.

Essence

The essence of AD7124-8BCPZ lies in its ability to provide high-resolution and low-noise analog-to-digital conversion, enabling accurate measurements in diverse applications.

Packaging/Quantity

The product is typically packaged in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

• Resolution: Up to 24 bits
• Input voltage range: ±VREF
• Sampling rate: Up to 125 kSPS
• Power supply: 2.7 V to 5.25 V
• Operating temperature range: -40°C to +105°C

Detailed Pin Configuration

The AD7124-8BCPZ features a 32-lead LFCSP package with the following pin configuration:

1. AIN1(+) - Positive analog input channel 1
2. AIN1(-) - Negative analog input channel 1
3. AIN2(+) - Positive analog input channel 2
4. AIN2(-) - Negative analog input channel 2
5. REFIN(+) - Positive reference voltage input
6. REFOUT - Reference voltage output
7. AVDD - Analog power supply
8. DVDD - Digital power supply
9. AGND - Analog ground
10. DGND - Digital ground
11. DOUT/RDY - Data output/Ready signal
12. DIN - Serial data input
13. SCLK - Serial clock input
14. CS - Chip select input
15. RESET - Reset input
16. AIN3(+) - Positive analog input channel 3
17. AIN3(-) - Negative analog input channel 3
18. AIN4(+) - Positive analog input channel 4
19. AIN4(-) - Negative analog input channel 4
20. AIN5(+) - Positive analog input channel 5
21. AIN5(-) - Negative analog input channel 5
22. AIN6(+) - Positive analog input channel 6
23. AIN6(-) - Negative analog input channel 6
24. AIN7(+) - Positive analog input channel 7
25. AIN7(-) - Negative analog input channel 7
26. AIN8(+) - Positive analog input channel 8
27. AIN8(-) - Negative analog input channel 8
28. REFIN(-) - Negative reference voltage input
29. VDRIVE - Drive voltage for external reference buffer
30. DVIO - I/O supply voltage
31. IOVDD - Digital I/O supply voltage
32. NC - No connect

Functional Features

• Programmable gain amplifier (PGA): The ADC includes a PGA that allows amplification of the input signal to improve measurement accuracy.
• On-chip reference: It incorporates an on-chip reference voltage source, eliminating the need for an external reference.
• Digital filters: AD7124-8BCPZ features digital filters that can be configured to enhance noise rejection and improve signal quality.
• Serial interface: The device supports a serial interface (SPI) for easy communication with microcontrollers or other digital devices.

Advantages and Disadvantages

Advantages

• High-resolution conversion ensures accurate measurement results.
• Low noise performance enables precise measurements in noisy environments.
• Flexible input configuration allows for versatile usage.
• On-chip reference simplifies system design.
• Low power consumption makes it suitable for battery-powered applications.

Disadvantages

• Limited sampling rate compared to some higher-end ADCs.
• Requires external components for certain functionalities, such as the reference buffer.

Working Principles

AD7124-8BCPZ 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 circuitry, and outputs the converted data through the serial interface.

The device utilizes a combination of programmable gain amplifiers, analog-to-digital converters, and