ADS4125EVM

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The ADS4125EVM evaluation module is an analog to digital converter (ADC) for a variety of industrial and consumer applications. It is designed to provide customers with a modular and rapid prototyping solution for converter evaluations. This article will discuss the application field of the module as well as the working principle of the ADS4125EVM.

Application Field

The ADS4125EVM evaluation module is intended for a wide range of industrial and consumer applications. In the industrial sector, this module can be used to evaluate sensors, motor controls, actuators, and power electronics. It can be used to evaluate analog signals from pressure sensors, vibration sensors, flow meters, and other similar devices. It can also be used to evaluate power electronics such as multilevel inverters and regulating power converters. In the consumer sector, it can be used for audio and voice applications such as cordless phones, wireless headsets, and wireless speakers. It can also be used for evaluating consumer audio and video signals.

Working Principle

The ADS4125EVM evaluation module is based on the ADS4125 converter integrated circuit. The integrated circuit is a 12-bit, sigma-delta ADC with integrated voltage reference. The converter can operate from a single +5 V supply and has an overall DNL and INL of 2 LSBs (0.1%) while consuming only 10 mA. It also features a low noise floor across the sampling frequency range of 5 kHz to 50 kHz.

The converter works on the principle of linearization, wherein an input signal is linearly amplified and converted into a digital signal. It uses an analog-to-digital multiplexer (MUX) to multiplex the analog signal and the digital signal for conversion. The Mux is used to select a particular input channel for conversion. The multiplexed signal is then fed to a 1-bit sigma-delta ADC, where the digital signal is generated. The ADC converts the analog signal into a digital signal using pulse-width modulation (PWM). The digital signal is then stored in a digital register for further processing using logic circuits.

Conclusion

In conclusion, the ADS4125EVM evaluation module is an ideal solution for customers who require rapid prototyping of analog devices. It enables customers to quickly evaluate performance for a wide range of industrial and consumer applications. The module is based on the ADS4125 converter and operates on the principle of linearization. It uses an analog-to-digital multiplexer (MUX) to multiplex the analog signal and the digital signal for conversion. The ADS4125EVM is also capable of operating from a single +5 V supply, making it ideal for a variety of applications.

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