ADS7825U/1K

Number of A/D Converters:	1
Base Part Number:	ADS7825
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:	4
Sampling Rate (Per Second):	40k
Number of Bits:	16
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ADS7825U/1K: Application Field and Working Principle

Data Acquisition - Analog to Digital Converters (ADC) are important components in electronics and are used to convert analog signals into digital signals for digital communication and computing. The ADS7825U/1K is a high-performance 12-bit successive approximation analog-to-digital converter. It has a wide dynamical range, substantial speed of conversion, low power input and high stability over time. The ADS7825U/1K is designed to be used with microcontrollers and other embedded systems in consumer, industrial, automotive and medical applications.

Applications of the ADS7825U/1K

The ADS7825U/1K is suitable for a wide range of applications due to its versatile features. Examples include:

• Industrial control and automation
• Remote process control and monitoring
• Medical and clinical systems
• Weather surveys and meteorology
• Robotics
• Measurement systems
• Prototype development
• Automotive and aerospace

The wide range of industrial and consumer applications makes this ADC a good choice for any application where real-time data needs to be collected and quickly displayed.

Features of the ADS7825U/1K

The ADS7825U/1K is a low-power ADC with a 12-bit resolution and features a conversion rate of 8K converts/second. The ADS7825U/1K features a sampling rate of 8kHz and Low Noise Cure (LNC) technology to reduce power and noise. It also offers low power consumption, with a power dissipation of a few milliwatts at 1MHz clock speed. Additionally, the device has a sensing range of 0-5V. This ensures that signals that are equal to or greater than 0VmV and 5VmV can be measured.

Working Principle

The ADS7825U/1K is anmicrocontroller and digital system-friendly ADC that uses a successive approximation approach to convert digital information. Using binary search techniques, it can accurately convert an analog signal into a 12-bit precision digital signal.The ADC integrated circuit stands between an input voltage and an output digital signal. The analog signal first passes through an operational amplifier to gain the signal amplification. Then, the signal is directed to the comparator, where a single sample is compared against a known reference voltage. All the input signals that match the reference voltage will be filtered and sent to the successive approximation register (SAR).The SAR receives the comparisons from the comparator and processes the data, converting the analog signal into a 12-bit digital word. This digital word is then sent to the conversion complete bit, which indicates the completion of the conversion. The 12-bit digital code can then be used by other systems to measure the analog signal.

Conclusion

The ADS7825U/1K is a suitable Analog to Digital Converter (ADC) for many industrial, automotive and medical applications. It is a high-performance ADC offering low power consumption, high precision, and high conversion rates. Its unique features include a 12-bit resolution, 8K conversion rate and Low Noise Cure (LNC) technology. The device operates using a successive approximation register (SAR) to accurately convert analog signals into a 12-bit digital signal. The wide range of features makes the ADS7825U/1K an ideal choice for many applications.

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