AD7995YRJZ-1RL

Number of A/D Converters:	1
Base Part Number:	AD7995
Supplier Device Package:	SOT-23-8
Package / Case:	SOT-23-8
Operating Temperature:	-40°C ~ 125°C
Features:	--
Voltage - Supply, Digital:	2.7 V ~ 5.5 V
Voltage - Supply, Analog:	2.7 V ~ 5.5 V
Reference Type:	External
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	MUX-S/H-ADC
Data Interface:	I²C
Input Type:	Single Ended
Number of Inputs:	3, 4
Sampling Rate (Per Second):	140k
Number of Bits:	10
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Data Acquisition - Analog to Digital Converters (ADC)

Analog to Digital Converters (ADC) are electronic components that convert analog signals into digital representations. The AD7995YRJZ-1RL is a type of ADC specifically designed to facilitate high-precision measurements in data acquisition and industrial process control applications. This article examines the application field of the AD7995YRJZ-1RL and its underlying working principles.

Application Field

The AD7995YRJZ-1RL is ideal for applications that require high-level accuracy and reliability in digital data acquisition. It features a low offset voltage and a low non-linearity error, which makes it well-suited for precision measurements such as temperature and static pressure. In addition, its 16-bit resolution allows for precise digital readings, even when measuring small or widely-varying signals.The AD7995YRJZ-1RL’s wide input voltage range makes it suitable for a variety of data acquisition applications. It can accept input voltages of up to 28V, while its integrated short-circuit protection allows it to withstand high surges in current. Furthermore, it offers a wide operating temperature range of -40°C to +85°C, which makes it well-suited for industrial use in extreme environments.

Working Principle

The AD7995YRJZ-1RL converts analog input signals into digital representations by employing the principles of delta-sigma modulation. In this process, the analog signal is first sampled and converted into a series of digital bits with the help of a sigma-delta modulator. Then, the data is filtered by an internal digital filter, which eliminates any noise from the signal. Finally, the digital output provided by the AD7995YRJZ-1RL is a precise representation of the original analog signal. The AD7995YRJZ-1RL also offers a wide range of programming and calibration options to ensure accuracy and stability. Its software-programmable chip select/reset enables users to interface with a wide variety of digital devices. Additionally, its two external analogue reference voltage inputs allow for precise calibration of the digital readings.

Conclusion

The AD7995YRJZ-1RL is an extremely reliable and accurate ADC that offers a wide range of features for data acquisition applications. Its low offset voltage and wide input voltage range make it ideal for precision measurements in extreme environments, while its sigma-delta modulator and digital filter provide accurate digital representations of analog signals. In addition, its programmable chip select and calibration options ensure accuracy and stability of its digital readings. It is thus a highly effective and dependable ADC for industrial purposes.

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