AD7678ASTZ: High-Precision 18-bit SAR ADC from Analog Devices Inc.

The AD7678ASTZ is a state-of-the-art 18-bit, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This high-performance component is designed for applications that require the highest level of precision and speed, making it an ideal choice for medical imaging, data acquisition systems, and industrial control applications.

Key Features

• Resolution: The device boasts a remarkable 18-bit resolution, ensuring high-accuracy digital representations of the input analog signals.
• Sampling Rate: With a fast sampling rate of up to 100 kSPS (kilo samples per second), the AD7678ASTZ is capable of handling high-speed signals without sacrificing precision.
• INL and DNL: It features an impressive integral nonlinearity (INL) of ±2 ppm of full scale and differential nonlinearity (DNL) that is guaranteed monotonic, providing reliable and consistent performance.
• Interface: The device includes a serial interface that is SPI/QSPI/MICROWIRE/DSP compatible, offering versatility and ease of integration into a variety of systems.
• Power Efficiency: With a low power consumption of 15 mW at 100 kSPS, the AD7678ASTZ is optimized for power-sensitive applications.
• No Missing Codes: Guaranteed no missing codes to 18 bits.
• Power-Down Options: Flexible power-down options are available, which significantly reduce power consumption when the device is not in use.

Package and Temperature Range

The AD7678ASTZ comes in a compact 48-lead LQFP (Low-profile Quad Flat Package), which is suitable for space-constrained applications. It operates over the industrial temperature range of -40°C to +85°C, ensuring reliable performance in a wide range of operating conditions.

Applications

• Medical Imaging Systems
• High-Speed Data Acquisition
• Instrumentation and Control Systems
• Battery-Powered Instruments
• Industrial Process Control

Overall, the AD7678ASTZ from Analog Devices Inc. represents a blend of precision, speed, and power efficiency that is hard to match. Its robust feature set and adaptability make it a valuable component for any application where accuracy and speed are critical.