AD7124-4BRUZ

Product Overview

Category

AD7124-4BRUZ 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: AD7124-4BRUZ offers a resolution of up to 24 bits, ensuring accurate conversion of analog signals.
• Low noise: The device has low noise levels, enabling precise measurement and data acquisition.
• Low power consumption: AD7124-4BRUZ operates at low power, making it suitable for battery-powered applications.
• Flexible input configuration: It supports various input types, including voltage, current, and resistance.
• Programmable features: The ADC provides programmable gain amplifiers, filters, and other features for customization.

Package and Quantity

AD7124-4BRUZ is available in a small outline integrated circuit (SOIC) package. The quantity per package may vary depending on the supplier.

Specifications

• Resolution: Up to 24 bits
• Input channels: Multiple differential or pseudo-differential inputs
• Sampling rate: Configurable up to 125 kSPS (thousand samples per second)
• Power supply: 2.7 V to 5.25 V
• Operating temperature range: -40°C to +105°C

Pin Configuration

The AD7124-4BRUZ has a total of 32 pins. Here is a detailed pin configuration:

1. REFOUT: Reference output
2. REFIN1(+)/AIN1(-): Positive/negative input for channel 1
3. REFIN2(+)/AIN2(-): Positive/negative input for channel 2
4. REFIN3(+)/AIN3(-): Positive/negative input for channel 3
5. REFIN4(+)/AIN4(-): Positive/negative input for channel 4
6. AVDD: Analog power supply
7. DVDD: Digital power supply
8. AGND: Analog ground
9. DGND: Digital ground
10. VBIAS: Bias voltage output
11. AIN5(-): Negative input for channel 5
12. AIN5(+): Positive input for channel 5
13. AIN6(-): Negative input for channel 6
14. AIN6(+): Positive input for channel 6
15. AIN7(-): Negative input for channel 7
16. AIN7(+): Positive input for channel 7
17. AIN8(-): Negative input for channel 8
18. AIN8(+): Positive input for channel 8
19. REFBUF: Reference buffer
20. DVIO: Digital I/O voltage

Functional Features

• Programmable gain amplifiers (PGAs): Allows customization of the gain for each input channel.
• On-chip filters: Provides digital filters to remove noise and enhance signal quality.
• Temperature sensor: Integrated temperature sensor for accurate temperature measurement.
• Power-down modes: Offers different power-down modes to conserve energy when not in use.
• Serial interface: Supports serial communication protocols such as SPI and I2C.

Advantages and Disadvantages

Advantages

• High-resolution conversion for precise measurements.
• Low noise levels ensure accurate data acquisition.
• Flexible input configuration supports various analog signals.
• Programmable features allow customization for specific applications.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited maximum sampling rate compared to some other ADCs.
• Higher cost compared to lower-resolution ADCs.
• Requires external components for proper operation.

Working Principles

AD7124-4BRUZ utilizes a successive approximation register (SAR) architecture for analog-to-digital conversion. It samples the analog input, applies programmable gain amplification, and then performs a series of comparisons to determine the digital representation of the input signal.

The device incorporates internal reference voltages and buffers to ensure accurate conversion. It also includes on-chip filters to remove noise and enhance the quality of the acquired data.

Application Field Plans

AD7124-4BRUZ finds applications in various fields, including but not limited to: - Industrial process control - Weighing scales and load cells - Medical instrumentation - Data acquisition systems - Temperature measurement devices - Portable battery-powered devices

Alternative Models

Here are some alternative models that offer similar functionality: - AD7124-8BRUZ: An 8-channel version of the AD7124 series. - AD7175-2BRUZ: A higher-resolution ADC with 24-bit resolution. - ADS124S08IPW: A 24-bit, 8-channel delta-sigma ADC.

These alternatives provide options with varying channel counts, resolutions, and features to suit