MAX125EVB16

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MAX125EVB16 is an analog to digital converter evaluation board from Maxim Integrated which comprises of the MAX125 16-bit A/D converter. It is designed to evaluate the characteristics of the MAX125 bridge circuit in thermistor, RTD, bridge, load cell, strain gauge, weight, and reciprocal transducer applications. It performs a 4-wire or 6-wire resistance measurement and provides an analog output of up to 24 volts.

This board features programmable filters, offset and gain registers, temperature compensation, and a 16-bit No Latency ΔΣ ADC for precision measurements. The MAX125EVB16 operates on a single power supply with a voltage range from 9V to 36V and has a number of selectable input ranges. With a maximum resolution of 0.0015%, this board provides highly accurate converted data.

Application Fields of MAX125EVB16

The main application field of MAX125EVB16 is in temperature-sensing solutions such as Pt100 RTD transducers, thermistors, LM35, and thermocouples. It can be used for load-cell and strain-gauge and bridge transducer applications. Its 16-bit No Latency ΔΣ ADC can also be used for precision measurements of weight, temperature, and pressure.

The MAX125EVB16 features programmable gain and offset registers, temperature compensation, and filters for efficient and accurate conversion of data. Its flexibility enables it to be used in various application fields such as industrial automation, medical equipment, consumer electronics, and automotive.

The MAX125EVB16 is also applicable to energy management solutions as a battery charger controller, temperature controller, or level detector. Its flexibility and high resolution allow for accurate and efficient control of the energy-management environment.

The MAX125EVB16 evaluation board is ideal for industrial and consumer applications. Its low power consumption and high reliability are highlighted by a wide operating temperature range up to 125°C. With its integrated programmable filters, it offers enhanced signal processing, thus making it a suitable solution for industrial and consumer usage.

Working Principle of MAX125EVB16

The MAX125EVB16 evaluation board facilitates measurement of single and dual resistor bridges. It automatically compensates the cross-channel temperature difference on a dual-bridge measurement without sacrificing accuracy. The system also provides an analog output for internal processing or external display.

In the differential input configuration, the MAX125 converts the differential input voltage to a ratio of Vr/Vdi representing the differential resistance and its related process parameters. Its 16-bit ΔΣ analog-to-digital conversion produces an accurate and linear representation of the resistance ratio. When used in a Wheatstone bridge configuration, the MAX125EVB16 evaluates bridge balances due to changes in resistance, pressure, temperature, and other related parameters.

The MAX125EVB16 includes advanced features such as programmable gain and offset registers, temperature compensation, and advanced filters. The integrated programmable filters provide an improved signal-to-noise ratio, resulting in higher accuracy. The board supports six input ranges, offering flexibility for various applications.

In summary, the MAX125EVB16 evaluation board is an excellent choice for precision measurements of temperature, weight, load-cell and strain-gauge applications. It features a wide range of selectable input ranges, programmable gain and offset registers, temperature compensation, and advanced filters. Its high resolution and low power consumption make it a suitable solution for industrial and consumer applications.

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