LTC2485CDD#PBF: High-Precision 24-Bit Sigma-Delta ADC IC by Analog Devices

The LTC2485CDD#PBF from Analog Devices Inc. is a premium 24-bit Sigma-Delta Analog-to-Digital Converter (ADC) designed for applications demanding ultra-high precision and reliability. This IC is part of Analog Devices' renowned data acquisition product line, offering exceptional performance in signal conversion for industrial, medical, and scientific applications.

Comprehensive Product Overview

Manufacturer and Availability

Produced by Analog Devices Inc. - a global leader in high-performance analog technology - the LTC2485CDD#PBF is currently in active production, ensuring long-term availability and support for your design needs.

Product Category and Function

This device belongs to the Data Acquisition ICs category, specifically as a Sigma-Delta ADC. It serves as a critical component in measurement systems where analog signals need to be converted to digital format with minimal noise and maximum accuracy.

Detailed Technical Specifications

Resolution and Conversion Performance

With its impressive 24-bit resolution, the LTC2485CDD#PBF delivers exceptional measurement precision. The converter operates at 7.5 samples per second (SPS), making it ideal for high-accuracy applications where speed is secondary to measurement quality.

Input Configuration and Interface

The device features:

• 1 differential input channel for noise-resistant measurements
• I C serial interface for easy microcontroller connection
• MUX-ADC configuration for flexible input selection

Advanced Architecture and Features

The Sigma-Delta architecture ensures excellent linearity and noise performance. Key features include:

• External reference voltage for design flexibility
• Selectable I C address for multi-device systems
• Integrated temperature sensor for environmental monitoring
• Wide 2.7V to 5.5V supply range for both analog and digital power

Environmental Specifications

The device operates reliably in 0 C to 70 C environments, suitable for most industrial and commercial applications.

Package and Physical Characteristics

Compact Surface-Mount Design

The LTC2485CDD#PBF comes in a space-saving 10-WFDFN Exposed Pad package (3mm 3mm), designated as 10-DFN (3x3) by the manufacturer. This surface-mount package enables:

• High-density PCB layouts
• Efficient thermal performance
• Automated assembly compatibility

Target Applications

The LTC2485CDD#PBF excels in numerous precision measurement applications:

Industrial Systems

• Process control instrumentation
• Precision sensor interfaces
• Automated test equipment

Medical Equipment

• Patient monitoring devices
• Diagnostic instruments
• Laboratory analyzers

Environmental Monitoring

• Weather stations
• Air quality sensors
• Water quality measurement

Consumer Electronics

• High-end audio equipment
• Precision measurement tools
• Smart home sensors

Why Choose the LTC2485CDD#PBF?

This ADC stands out from competitors due to:

1. Unmatched 24-bit resolution for ultra-precise measurements
2. Advanced Sigma-Delta technology for excellent noise performance
3. Flexible I C interface with address selection
4. Integrated temperature sensing for system monitoring
5. Robust Analog Devices quality and reliability

Design Considerations

When implementing the LTC2485CDD#PBF in your design:

• Pay careful attention to PCB layout for optimal noise performance
• Use high-quality external reference voltage sources
• Consider the sampling rate requirements for your application
• Implement proper decoupling for power supplies

Conclusion

The LTC2485CDD#PBF represents the pinnacle of precision analog-to-digital conversion technology from Analog Devices. Its combination of 24-bit resolution, flexible interface, and integrated features makes it an excellent choice for demanding measurement applications across multiple industries.

For engineers and designers seeking to achieve the highest levels of measurement accuracy, the LTC2485CDD#PBF offers a compelling solution backed by Analog Devices' reputation for quality and performance. Its availability in a compact surface-mount package further enhances its appeal for space-constrained designs.

Ready to integrate this high-performance ADC into your next project? Visit our online store to purchase the LTC2485CDD#PBF and access comprehensive technical support resources to ensure your design success.