ADS7826EVM

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Analog to Digital Converters (ADCs) are electronics components that convert analog signals to digital signals. This conversion is done using a process known as quantization. Many electronic circuits can benefit from the use of Analog to Digital Converters, from audio applications to complex control systems, such as those used in aviation. One example of an Analog to Digital Converter is the Texas Instruments ADS7826EVM. The ADS7826EVM is a high performance, low power evaluation board used to evaluate the functionality and performance of the ADS7826 analog-to-digital converter.

The ADS7826EVM comes with a wide range of application fields. It is tailored to provide monitoring, control, or signal conversion of voltage inputs that range from 0V to 4.096V as well as features like an 8-bit A/D configurable output, adjustable sample rate (with a programmable reference voltage), adjustable conversion speed, and low power consumption. It can be used for multiple signal conditioning applications such as battery monitoring systems, medical monitoring systems, automotive systems and data acquisition systems in multiple industrial applications.

The working principle of the ADS7826EVM is based around a differential sub-ranging ADC. The chip contains an 8-bit differential input voltage to digital converter, programmable voltage reference, voltage divider and reference buffer. The voltage reference is used to provide an accurate reference voltage for the chip. This reference voltage is then adjusted in order to achieve desired resolution.

The voltage divider is used to divide the input signal into multiple ranges. This dividing allows the ADC to determine the amount of resolution required and how much range is needed for a given input. Based on this information, it will then convert the signal into its respective 8-bit digital format.

The internal reference buffer ensures the reference voltage remains stable and is not affected by external noise. The reference buffer helps to ensure the ADC performs correctly over a wide range of input voltages. It also allows the ADC to respond to rapid changes in input voltage.

The ADS7826EVM board contains all of these components on a single board. It is an easy-to-use solution that can be integrated into a wide variety of applications, from sensing to monitoring to signal capture and conversion. With its wide range of application fields and its highly reliable performance, the ADS7826EVM is a valuable evaluation board for Analog to Digital Converters.

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