Cirrus Logic

CS5526-BSZ

CS5526-BSZ Description

The CS5526-BSZ is a high-performance 20-bit sigma-delta analog-to-digital converter (ADC) designed by Cirrus Logic Inc. This device is specifically tailored for precision measurement applications requiring high accuracy and resolution. The CS5526-BSZ features a single 20-bit ADC with a differential input type, capable of achieving a sampling rate of 616 samples per second. It is equipped with a programmable gain amplifier (PGA) and selectable address, providing flexibility and adaptability for various measurement needs.

The data interface is SPI, ensuring efficient communication with microcontrollers and other digital systems. The device operates with a 5V analog supply voltage and supports dual digital supply voltages of 3V and 5V, making it compatible with a wide range of digital systems. The CS5526-BSZ is housed in a surface-mount 20SSOP package, available in a tube package type, and is suitable for applications requiring a compact footprint.

CS5526-BSZ Features

• High Resolution and Accuracy: With a 20-bit resolution, the CS5526-BSZ offers high precision for analog signal conversion, making it ideal for applications requiring detailed and accurate measurements.
• Programmable Gain Amplifier (PGA): The integrated PGA allows for signal amplification, enhancing the dynamic range and improving the signal-to-noise ratio, which is crucial for low-level signal processing.
• Selectable Address: This feature enables multiple CS5526-BSZ devices to be connected on the same SPI bus, simplifying system design and reducing the number of required interface lines.
• Differential Input Type: The differential input configuration provides improved noise rejection and common-mode interference suppression, ensuring high-quality signal conversion even in noisy environments.
• Dual Digital Supply Voltages: The support for both 3V and 5V digital supply voltages ensures compatibility with a variety of digital systems, enhancing the versatility of the device.
• External Reference Type: The use of an external reference allows for precise calibration and ensures consistent performance across different operating conditions.
• Moisture Sensitivity Level (MSL) 3: The device is rated for 168 hours of exposure to moisture, making it suitable for applications in environments with varying humidity levels.
• Compliance and Status: The CS5526-BSZ is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards. However, it is marked as "Not For New Designs," indicating that it may be phased out in favor of newer models.

CS5526-BSZ Applications

The CS5526-BSZ is well-suited for a variety of applications where high-precision analog-to-digital conversion is required. Some specific use cases include:

• Industrial Automation: For precise measurement of process variables such as temperature, pressure, and flow rates, the CS5526-BSZ provides the necessary accuracy and resolution.
• Medical Equipment: In medical devices that require high-fidelity signal processing, such as ECG and EEG machines, the CS5526-BSZ ensures reliable and accurate data acquisition.
• Scientific Instruments: For laboratory equipment that demands high-precision measurements, such as spectrometers and chromatographs, the CS5526-BSZ offers the required performance.
• Energy Management Systems: In applications involving energy monitoring and control, the CS5526-BSZ can accurately measure power consumption and voltage levels, contributing to efficient energy management.

Conclusion of CS5526-BSZ

The CS5526-BSZ is a robust and versatile 20-bit sigma-delta ADC designed for high-precision measurement applications. Its features, such as the PGA, selectable address, and differential input type, provide significant advantages over similar models, enhancing its adaptability and performance. The device's compatibility with various digital systems and its compliance with environmental standards make it a reliable choice for a wide range of applications. While it is marked as "Not For New Designs," the CS5526-BSZ remains a valuable component for existing systems and applications requiring high-precision ADC capabilities.