AD7711AR-REEL7

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Data Acquisition - Analog to Digital Converters (ADC) include a wide variety of converters that are designed to accurately, reliably and efficiently convert between analog and digital signals. The AD7711AR-REEL7 is a high-accuracy, low-power, 24-bits, voltage-output ADC from Texas Instruments, which has a wide range of applications. In this article, we will discuss the features and applications of the AD7711AR-REEL7 and its working principle.

Overview

The AD7711AR-REEL7 is a 24-bits, voltage-output ADC from Texas Instruments that delivers high-accuracy and low-power performance in a small package. It features an onboard reference, wide dynamic range and excellent noise performance, making it an ideal choice for precision data acquisition applications.

The AD7711AR-REEL7 also has several distinct features, such as a 0.04% INL, 0.2 μV RMS noise, 0-15V input voltage range, a 0-5V output voltage range, and a 1MS/s sampling rate. It is available in a 8-pin SOIC package and employs single-power supply operation, making it suitable for battery-powered applications.

Application Field

The AD7711AR-REEL7 can be used in a wide range of precision data acquisition applications, ranging from low-level signal processing to high-precision scientific measurements. It has been used in applications such as:

• Bio-sensing and chemical/gas sensing applications
• Industrial process control and monitoring
• High-precision data loggers
• Medical diagnostics devices
• Automotive and avionics equipment
• Consumer electronics and IoT applications

Working Principle

The AD7711AR-REEL7 is based on a dual-slope integrating (DSI) converter, which works by integrating the input signal for a pre-determined time, then performing an analog-to-digital conversion on the integrated signal. It works by charging a capacitor up to the input voltage, then gradually discharging the capacitor until it reaches the reference voltage, thus performing an integration. Then, it performs an analog-to-digital conversion on the integrated signal, which is then outputted as a digital signal.

The AD7711AR-REEL7 also features an onboard reference, which allows it to make more accurate analog-to-digital conversions. It also has a wide dynamic range, making it suitable for a variety of applications. Additionally, the AD7711AR-REEL7 has excellent noise performance and a high sampling rate, allowing it to accurately and reliably acquire data in a variety of challenging conditions.

Conclusion

The AD7711AR-REEL7 is a high-accuracy, low-power, 24-bits, voltage-output ADC from Texas Instruments. It features an onboard reference, wide dynamic range and excellent noise performance, making it ideal for precision data acquisition applications. It is based on a dual-slope integrating (DSI) converter and has a wide range of applications, including bio-sensing and chemical/gas sensing applications, industrial process control and monitoring, high-precision data loggers, medical diagnostics devices, automotive and avionics equipment, and consumer electronics and IoT applications.

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