AD7631 (2)

The AD7631 is available from Analog Devices at Xecor. Designed for high-speed data acquisition and precision analog-to-digital conversion, the AD7631 offers 18-bit resolution, 250 kSPS sampling rate, and multiple programmable input ranges (±5 V, ±10 V, +5 V, +10 V). Available in a 48-LQFP package, it is ideal for applications such as process control, digital signal processing, spectrum analysis, and automated test equipment (ATE). Whether used in industrial automation, telecommunications, or scientific instrumentation, this series ensures high accuracy, low power consumption, and robust performance for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the AD7631 series below.

Part Number Description Package Inventory Add To Bom
AD7631BSTZ 1-Channel Single ADC SAR 250ksps 18-bit Parallel/Serial 48-Pin LQFP Tray LQFP-48 3,547
AD7631BSTZRL This high-speed ADC features exceptional linearity, accuracy and low noise, making it ideal for precision application LQFP-48 7,226

Key Featrues

Multiple Programmable Input Ranges: The AD7631 supports four different analog input ranges (+5V, +10V, ±5V, ±10V), allowing flexibility in signal acquisition. This feature enhances its adaptability to various applications, such as process control and high-speed data acquisition, by accommodating different voltage levels without requiring external conditioning circuits.
High-Speed 18-Bit SAR Architecture: With a sampling rate of 250 kSPS and 18-bit resolution, the AD7631 delivers precise and high-speed analog-to-digital conversion. This makes it ideal for applications requiring high accuracy and fast data acquisition, such as spectrum analysis and digital signal processing.
Internal Reference and Buffer: The inclusion of an internal reference and buffer simplifies the design process by reducing the need for external components. This improves system efficiency and reliability, particularly in space-constrained or power-sensitive applications.
Serial and Parallel Interface Options: The AD7631 offers both serial (SPI) and parallel interface options, providing flexibility in system integration. This dual-interface capability allows it to be easily incorporated into various digital systems, enhancing its usability in diverse applications like automated test equipment (ATE).
Low Power Consumption: With a power consumption of 94 mW, the AD7631 is designed for energy-efficient operation. This feature is particularly beneficial in portable or battery-powered devices, where minimizing power usage is critical for extending operational life.

Applications

High-Speed Data Acquisition System: The AD7631 is perfect for high-speed data acquisition systems, where its 18-bit resolution and 250 kSPS sampling rate ensure precise and rapid digitization of analog signals. Its differential input capability and flexible input ranges make it suitable for capturing data from various sensors and transducers in industrial automation and test equipment.
Precision Process Control: The AD7631 excels in process control applications, where its high accuracy and programmable input ranges allow for precise monitoring and control of process variables. Its ability to handle differential inputs and operate in harsh environments (from -40°C to +85°C) makes it ideal for use in chemical, pharmaceutical, and manufacturing industries.
Spectrum Analysis Equipment: With its 18-bit resolution and high signal-to-noise ratio (SNR) of 100 dB, the AD7631 is well-suited for spectrum analysis applications. It can accurately digitize low-level signals from RF and audio sources, enabling detailed frequency analysis in communication systems, audio processing, and scientific research.
Automated Test Equipment (ATE): The AD7631 is a reliable choice for ATE systems, where its high-speed sampling and flexible interface options (SPI, parallel, DSP) enable efficient testing of electronic components and systems. Its ability to handle multiple input ranges and operate with both internal and external references ensures compatibility with a wide range of test scenarios.

Popular AD7631 Products comparison

AD7631BSTZRL vs AD7631BSTZ