MAX1185ECM/V+

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Data acquisition – analog to digital converters (ADCs) are used to measure and digitize real world physical quantities, such as voltage and temperature. Among them, MAX1185ECM/V+ is a 12-bit continuous-time successive-approximation register (SAR) ADC which features a high-speed 1MSPS throughput with low power consumption of 1.85mW. In this article, the application field and working principle of MAX1185ECM/V+ will be discussed.

The integrated power-saving modes of MAX1186ECM/V+ make it an ideal choice for battery-powered portable applications. Examples of such applications include medical instrumentation, energy-harvesting systems, and portable industrial test/measurement tools. The chip also comes with different high-level integration options, including a bi-phase sampling clock, which helps reduce input circuit complexity, and can be used in high-ended medical instrumentation, energy-harvesting systems, and single-cell battery systems. Additionally, the chip supports a wide range of input signal frequency and is capable of operating in noisy environments via its adjustable digital low-pass filter.

The working principle of MAX1185ECM/V+ is based on a successive-approximation register (SAR) architecture. The chip consists of a successive-approximation register, a sample-and-hold circuit, and digital signal processing (DSP) function blocks. The sample-and-hold circuit captures and holds the input signal, while the SAR register feedback loop compares the signal to a reference voltage and gradually approximates the digital representation of the input signal. The digital signal processing block handles digital correction and noise-shaping functions to maintain a high signal-to-noise ratio, while the digital output is converted to a single-ended or differential voltage output.

In summary, MAX1185ECM/V+ is a 12-bit SAR ADC which is well suited for portable and high-ended applications. Its power-saving modes, high-level integration options, wide input signal range, and adjustable digital filter allows for stable digitizing of real-world physical quantities, thus making it an ideal choice for battery-powered portable applications. The specific data is subject to PDF, and the above content is for reference