ADC12H032CIWM

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ADC12H032CIWM is a high-performance, low-power 12-bit, 32-channel analog-to-digital converter (ADC) designed for extremely demanding applications. It is capable of performing high-speed sampling and data acquisition up to 2 million samples/s in an ultra-compact 4mm x 4mm package.

This converter incorporates several innovative features, making it ideal for applications where size, performance and power consumption are critical parameters. Primarily focused on industrial and medical imaging, the ADC12H032CIWM is suitable for various other applications, including medical instrumentation, general data acquisition, and communications test and measurement.

Application Fields

The ADC12H032CIWM family is typically used in analog-to-digital conversion for data acquisition systems. Its primary applications include medical and industrial imaging, medical instrumentation, general data acquisition, and communications test and measurement. In medical and industrial imaging, the converter is especially useful in ultrasound, X-ray imaging, and dynamic range digital imaging, as well as ultrasound imaging, gyroscope stabilization, and magnetic resonance imaging (MRI). In medical instrumentation, the ADC12H032CIWM can be used for electrocardiography (ECG), and in general data acquisition, the device can be used for dynamic trending and auto-sequencing. It can also be used for transmit and receive timing, power tracking and envelope detection, and baseband modulating, in communications test and measurement.

Working Principle

The ADC12H032CIWM is a 12-bit, 32-channel converter capable of sampling up to 2 million samples/sec. It includes an on-chip sample-and-hold circuit, which allows for the acquisition of high-fidelity input signals. The on-chip sample-and-hold circuit consists of 32 independent sampling cells, and each sampling cell has an 18pF charge storage capacitor. The input signal is held on the capacitor while the A/D conversion process begins. During the conversion process, the code representing the digital value of the input signal is generated in series by the successive approximation register (SAR). The ADC12H032CIWM also has an 8-bit digital interface to interface with other digital systems. After the digital value of the input signal is calculated, it is then transferred to the LSByte (last 8 bits) in the serial data output register.

The ADC12H032CIWM is designed to minimize power consumption and provide superior dynamic performance. It uses an innovative technique called adaptive Clock-Slicing™ to reduce power consumption by dynamically adjusting its operating frequency. This technique takes advantage of the wide range of input signal frequencies that are typically encountered in data acquisition and imaging applications. The converter also uses a Wakeup-Looped-Sampling (WLS) technique that enables it to further reduce power consumption by sending clock pulses only when required, thus optimizing overall performance.

Overall, the ADC12H032CIWM is an ideal solution for applications where performance, size and power consumption are critical parameters. With its high performance and versatile features, it is capable of providing superior dynamic performance, high resolution and low power consumption in a variety of applications.

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