ADS5482EVM

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Introduction

Analog to Digital Converters (ADCs) are electronic systems that convert analog signals to digital signals. The conversion process of an ADC can be done with various types of equipment and different methods. One of these types of equipment is an Evaluation Board. Evaluation boards are created to allow engineers to quickly and accurately evaluate and verify the performance of their designs. ADS5482EVM is a type of evaluation board that offers a highly accurate signal conversion and a low-noise design.

ADS5482EVM application field and working principle

The ADS5482EVM is a general purpose evaluation module for the TI ADS5482E ADC family. This ADC family includes 16-bit and 18-bit resolution ADC’s, which are suitable for use in a wide range of applications, including medical, industrial and automotive.

The ADS5482E ADC family has a high dynamic range of up to 21.4V. It also has a low power consumption and a programmable gain of up to 24dB. The ADS5482EVM is designed to ease the evaluation of the performance of the ADS5482E ADC family. This is done by providing the user with access to the full (+/-10V) input range of the ADC.

The ADS5482EVM employs a buffered, level-shifted, single-ended input signal. A single-ended signal consists of two analog signals that are sent over the same wire. A level-shifter is used to shift this signal to a higher or lower voltage level, depending on the needs of the ADC. The buffering of the input signal helps to reduce noise and increase signal accuracy.

To get the highest accuracy, a differential input is usually preferred, however, this requires two ADC pins. To reduce the number of pins, the ADS5482EVM provides an “offset” feature, which eliminates the need for a differential input. This results in a more accurate and noise-free signal compared to a single-ended input.

The ADS5482EVM is also equipped with a low-pass and high-pass filter. These filters help to reduce unwanted noise from the analog signal before it is converted to a digital signal. The filters also help to reduce the signal bandwidth, which can help to reduce the size and power consumption of the converter.

Once the signal has been filtered, the ADS5482EVM converts the analog signal to a digital signal using its internal ADC. The ADC will then provide a 16-bit or 18-bit digital output depending on the needs of the application. This digital signal can then be used by the user in a wide range of applications such as data acquisition, control systems, gaming, automotive, and image processing.

Conclusion

The ADS5482EVM is a great tool for evaluating the performance of the ADS5482E ADC family. It offers a high dynamic range and low power consumption, along with buffered, level-shifted, and single-ended or differential inputs. It also provides noise reduction via its low-pass and high-pass filters, and offers either 16-bit or 18-bit digital outputs. All-in-all, the ADS5482EVM is an excellent evaluation board for those looking to evaluate the performance of a TI ADS5482E ADC.

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