Analog Devices Inc. Tariff Inquiry

AD7927BRU

AD7927BRU Description

The AD7927BRU is a 12-bit, 200 kSPS, 8-channel successive approximation register (SAR) analog-to-digital converter (ADC) from Analog Devices Inc. Designed for precision data acquisition, it features a single-ended input architecture with an external reference voltage, supporting analog and digital supply voltages ranging from 2.7V to 5.25V. The device communicates via SPI/DSP-compatible serial interface, making it suitable for embedded systems requiring high-speed, low-power ADC performance. Packaged in a 20-pin TSSOP tube format, the AD7927BRU is optimized for surface-mount applications but is now marked as obsolete, though still relevant for legacy designs.

AD7927BRU Features

• High-Speed 12-Bit SAR ADC: Delivers 200 kSPS throughput with 1:1 sample-and-hold (S/H) ratio, ensuring accurate signal capture.
• Flexible Power Supply: Operates from 2.7V to 5.25V for both analog and digital domains, enabling compatibility with mixed-voltage systems.
• 8 Single-Ended Inputs: Supports multiplexed input configurations, ideal for multi-sensor monitoring.
• SPI/DSP Interface: Simplifies integration with microcontrollers and digital signal processors.
• External Reference Voltage: Allows users to optimize performance for specific dynamic range requirements.
• Low Power Consumption: Suitable for battery-powered or energy-sensitive applications.
• Surface-Mount TSSOP Package: Compact form factor for space-constrained PCB designs.

AD7927BRU Applications

• Industrial Automation: Process control, PLCs, and multi-channel data logging systems.
• Medical Instrumentation: Portable diagnostic devices requiring high-resolution ADC performance.
• Automotive Systems: Sensor interfaces for engine control or battery management.
• Consumer Electronics: Audio processing, touch panels, and embedded control systems.
• Legacy System Maintenance: Replacing or servicing older designs where the AD7927BRU was originally specified.

Conclusion of AD7927BRU

The AD7927BRU offers a balanced combination of speed, resolution, and channel count, making it a versatile choice for precision analog-to-digital conversion. While now obsolete, its low-power operation, flexible supply range, and SPI interface ensure continued utility in legacy industrial, medical, and automotive applications. Engineers seeking modern alternatives should consider newer SAR ADCs from Analog Devices with enhanced features, but the AD7927BRU remains a reliable solution for existing designs requiring 12-bit accuracy and 8-channel multiplexing.