AD7828BR

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Analog to digital converters (ADC) are devices that are used to convert analog signals into digital signals. The AD7828BR is one type of ADC which is a low-cost, 10-bit, successive approximation analog-to-digital converter (SAR ADC) for industrial and commercial applications. It is designed using CMOS technology and has two differential inputs with a single reference. The maximum throughput is up to 100k conversions per second.

AD7828BR Application Field

The AD7828BR is used in versatile applications. It is ideal for use with low-cost dataacquisition systems, process control systems, ADPCM and CDMA cellular base band design, board monitors, measurement instruments, medical electronics, data logging, telecommunications, test equipment, and industrial applications.

The AD7828BR has more than 10 bits of resolution and can be programmed with single-ended or differential input types. Its high resolution, wide temperature operating range, power supply flexibility, and software-configurable MUX are all designed to support many different applications.

In addition, the AD7828BR is ideal for converting low-level signals such as bridge sensors, RTD and strain gauges. It can also be used in absolute pressure sensors, position sensors, and flowmeter systems.

AD7828BR Working Principle

The AD7828BR is a 10-bit SAR ADC. It uses successive approximation technique to convert an analog input voltage into a digital value. The analog voltage is compared to the reference voltage. With each successive conversion step, the 10-bit DAC output settles to the most significant bit of the input voltage. The DAC output is stored in the DAC register and is used to determine the next conversion step.

The conversion process occurs in two phases: the compare phase, which begins the sequence of operations, and the conversion phase, which ends the sequence of operations. During the compare phase, the input signal is compared to the reference voltage. When the comparison is complete, the ADC enters the conversion phase, where the input is sampled, held and then converted into a digital word.

The AD7828BR supports various digital and analog signal types, as well as various supply voltages and power consumption levels. It has several features that make it suitable for many applications, including sleep mode, power-down mode, low noise, high resolution and low power consumption. Its power consumption is up to 1.2mA.

Conclusion

Overall, the AD7828BR is a low-cost, 10-bit ADC with several features that make it suitable for a wide range of applications, including data acquisition systems, process control systems, medical electronics, telecommunications, and industrial applications. It is a high-resolution, low power consumption ADC, with excellent characteristics and performance.

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