ADS5413EVM

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The ADS5413EVM is an off-line evaluation board from Texas Instruments which features the ADS5413 A/D converter. This ADC incorporates a 3rd-order Delta-Sigma modulator with a 16bit digital output. Targeted for data acquisition applications, it has a low noise principal of 23 dB, low power consumption, and a wide -40°C to 85°C temperature range. With its high performance in terms of linearity and dynamic range, it offers excellent accuracy for data acquisition systems.

Application Field:

ADS5413EVM is a suitable option for a variety of applications from automotive to consumer and industrial data acquisition systems. It can be used in applications where the precision of measurements or signal processing performance is of top priority. For example, the board is suitable for precision current-sensing applications in which the converter must accurately measure a low-amplitude differential signal with low noise and low cross-talk. In addition, it is also suitable in applications which require high-precision temperature sensing, or in applications with dynamic signals such as audio and video.

Working Principle:

ADS5413EVM is an A/D converter board which uses the ADS5413 A/D converter. This Delta-Sigma modulator ADC converts an analog signal into a digital bit stream using the single-bit Delta-Sigma modulation. This technique is based on the oversampling principle; the input signal is oversampled at a high frequency and a low-pass filter removes unwanted frequencies from the output. The device\'s digital filter is made up of several cascaded stages of loop filter, each stage consisting of an integrator and a combiner, which are used to capture the input signal and perform quantization of the signal. The digital filter also provides the necessary gain and phase programming of the overall system. The device\'s output is the 16bit digital signal which can be further processed by the control module or an external microcontroller.

In summary, ADS5413EVM is an evaluation board equipped with the ADS5413 A/D converter which is suitable for precision current-sensing, temperature sensing, and dynamic signal applications. Its Delta-Sigma modulator ADC architecture provides excellent linearity and dynamic range while consuming low power.

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