MAX1263BCEG+

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Analog to digital converters (ADCs) have become ubiquitous in various industries as the demand for electronic data acquisition systems raises. The MAX1263BCEG+ by Maxim Integrated is a precision sigma-delta A/D converter, designed to meet the low-cost, low-power requirements in a wide variety of applications. This article will dive into the application range and provide an overview of the working principle of the MAX1263BCEG+.

Features

The MAX1263BCEG+ is a monolithic delta-sigma A/D converter with integrated S&H and voltage reference. It features low voltage operation, low power consumption and low cost, with 12-bit accuracy over a wide temperature range. With a single-supply operation range of 2.7V to 5.5V and a power consumption of only 9mW at 5V and 10MHz conversion rate, this ADC is an efficient and versatile solution for many applications.

Applications

Its wide range of applications include various industrial and consumer use cases. These include medical systems such as body thermometer and ECG, consumer products such as PDAs, laptop PCs, digital cameras, DVD players and gaming systems, as well as automotive and industrial applications such as central combination instrumentation and navigation systems. The MAX1263BCEG+ has also been used as a low-power alternative in power monitoring applications.

Working Principle

The device contains an on-chip sigma-delta A/D converter with up to 12-bit resolution and integrated sample-and-hold circuits. The MAX1263BCEG+ is based on low-power, low-noise switched-capacitor technology to maintain a balance between accuracy and power consumption. The SAMPLE/CONVERSION pin initiates a conversion cycle, and the conversion result is available serially at the DOUT pin a few microseconds later. The reference voltage is selected with a pin, allowing the user to select between a built-in 1.2V and an external reference. This ensures the highest accuracy possible in the targeted application.

The MAX1263BCEG+ has two separate operating modes: normal and low-power mode. The normal mode is used for sampling data at up to 10MHz while the low-power mode reduces the power consumption by more than a factor of 10. Its two integrator output options further ensure the user has flexibility to set up the best settings.

The MAX1263BCEG+ is versatile and reliable for a range of industrial and consumer applications. Maxim Integrated has made sure that the device operates in a wide temperature range from -40 to +85?C with a sampling rate of 10MHz and a ±3 LSB INL/DNL accuracy.

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