ADS7806U

Number of A/D Converters:	1
Base Part Number:	ADS7806
Supplier Device Package:	28-SOIC
Package / Case:	28-SOIC (0.295", 7.50mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V
Reference Type:	External, Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	SPI, Parallel
Input Type:	Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	40k
Number of Bits:	12
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)

Analog to digital converters (ADCs) are essential components in any data acquisition system. They are used to convert analog signals, such as voltage or current into digital signals, allowing the data to be processed and analyzed by a computer or electronic system. Among the most popular ADCs that are used in data acquisition systems is the ADS7806U.The ADS7806U is a high-speed, high-resolution, 16-bit successive-approximation register (SAR) ADC that operates from a single 5V supply voltage. It features an integrated timing system and on-chip clock buffers, making it an ideal choice for high-resolution, high-speed data acquisition applications.One of the key features of the ADS7806U ADC is its multi-channel input scan robustness. It has two dedicated input scan channels, each with its own full 16-bit ADC converter, allowing it to process 8-bit to 16-bit data with no penalty for higher resolution data. Additionally, the ADC features an on-chip digital-to-analog converter (DAC) for calibration.The ADS7806U also has a wide dynamic range, with an input voltage range of 0 to 5V, allowing it to accommodate both low-level signals and full-scale values. It has a high SNR and THD performance, with greater than 96dB signal-to-noise ratio (SNR) and less than 1% total harmonic distortion (THD). The ADC also features a low-power operation mode, with a maximum power consumption of 150mW.In terms of accuracy, the ADS7806U ADC offers a low offset and voltage sampling drift, with a typical temperature coefficient of 0.3ppm/°C and a maximum current offset of 0.1mV. It also features a wide power supply range, from 4.5V to 5.5V and low power consumption, making it an ideal choice for applications where power and space are limited.The working principle of the ADS7806U ADC is based on the SAR principle. In this method, the analog input signal is converted into a digital signal by increasing a successive approximation register’s value step by step and comparing it to the input signal until the two values match. The register’s value then determines the digital value of the analog signal.The ADS7806U ADC is a high-performance and highly versatile solution that is suitable for a wide range of data acquisition applications. It offers low power consumption, wide input signals range and high resolution. Its accuracy and on-chip calibration make it an ideal choice for high-resolution and accurate signal conversion. Its multi-channel input scan robustness make it suitable for many signal-transformation applications.

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