ADS803E/1KG4

Number of A/D Converters:	1
Base Part Number:	ADS803
Supplier Device Package:	28-SSOP
Package / Case:	28-SSOP (0.209", 5.30mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V
Reference Type:	External, Internal
Architecture:	Pipelined
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	Parallel
Input Type:	Differential, Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	5M
Number of Bits:	12
Part Status:	Active
Packaging:	Tape & Reel (TR)

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IntroductionData Acquisition - Analog to Digital Converters (ADC) are devices that convert an analog signal into digital form. The ADS803E/1KG4 is an integrated Analog-to-Digital Converter (ADC) that features high performance, low power, and an integrated Flash Memory.Features The ADS803E/1KG4 is an integrated analog-to-digital converter (ADC) that features high performance, low power, and integrated Flash memory. Its features include a 10-bit resolution, 0.015% accuracy, a 1 MHz A/D conversion rate, a 5μs conversion time, and a 5V single-supply operation. The device also has an integrated dual-channel input port, which provides a fast and accurate way to sample the input. Additionally, the integrated Flash memory allows for the storage of the converted data for future use. The ADS803E/1KG4 also features an ESD protection that ensures a protection of the device against electrostatic discharges.Application field of ADS803E/1KG4The ADS803E/1KG4 is designed to be used in a wide variety of applications such as security systems, medical diagnostic equipment, data acquisition systems, and industrial control applications. The device can be used to convert analog signals from sensors, such as thermocouples, strain gauges, and microphone/speaker signals. The device is also suitable for more demanding data acquisition applications, such as industrial process control and testing applications.Working Principle of ADS803E/1KG4The working principle of the ADS803E/1KG4 is based on a sampling and hold principle. The device first samples and stores the input signal and then uses a fast SIGMA-DELTA analog-to-digital conversion technique to convert the analog input into a digital output. The SIGMA-DELTA converter is a type of differential noise-shaping modulator based on the principle of quantizing each source sample with a sequence of low-resolution 1-bit pixels. The output of the converter is a digital signal with a staircase shape. The device is composed of two main blocks, the flash memory and the analog-to-digital converter. The flash memory stores the data acquired by the analog-to-digital converter and the result is used to update the ADC’s internal registers. The analog-to-digital converter uses a discrete-time sigma-delta modulator to convert the analog signal into a pulse density modulation (PDM) signal. Then, the output is low-pass filtered to obtain a digital signal representation of the analog input. The device also has an integrated voltage reference and an adjustable offset control, which allows for accurate linearization of the digital output.ConclusionThe ADS803E/1KG4 is an integrated analog-to-digital converter that provides a high performance, low power, 10-bit resolution and 5V single supply operation. The device has an integrated flash memory for data storage and is suitable for a variety of applications, including security systems, medical diagnostic equipment, data acquisition systems, and industrial control applications. Its working principle is based on a sampling and hold principle and it utilizes a Sigma-Delta modulator to convert the analog input into a digital output. Overall, the ADS803E/1KG4 is a compact and efficient ADC that can be easily integrated into a wide variety of applications with its versatile features and capabilities.

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