ADS1225IRGVRG4

Number of A/D Converters:	1
Base Part Number:	ADS1225
Supplier Device Package:	16-VQFN (4x4)
Package / Case:	16-VQFN Exposed Pad
Operating Temperature:	-40°C ~ 105°C
Features:	Temperature Sensor
Voltage - Supply, Digital:	2.7 V ~ 5.5 V
Voltage - Supply, Analog:	2.7 V ~ 5.5 V
Reference Type:	External
Architecture:	Sigma-Delta
Series:	--
Ratio - S/H:ADC:	--
Configuration:	MUX-ADC
Data Interface:	SPI
Input Type:	Differential, Single Ended
Number of Inputs:	1
Sampling Rate (Per Second):	100
Number of Bits:	24
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ADS1225IRGVRG4 Application Field and Working Principle

The ADS1225IRGVRG4 is an advanced, high performance, low power, precision analog-to-digital converter (ADC) that provides a solution for data conversion and system interface requirements of mobile and battery-powered systems. It is ideal for applications in digital control systems, data acquisition systems, and portable instrumentation devices. The device offers a high degree of integration, low power consumption, and full protection of the microcontroller and other components from the full range of voltages commonly encountered in transducer applications.The ADS1225IRGVRG4 is a pipeline analog-to-digital converter, consisting of two successive sampling channels: a differential input stage and a successive approximation register (SAR). At the input stage, the differential amplifier provides gain and impedance matching. This stage has an adjustable feedback resistor ratio to allow user-defined gain adjustment. This ratio is ideally suited for use with load cells, force transducers, and strain gauges.The successive approximation register (SAR) is a 14-bit high-speed conversion system. It offers a differential-input architecture with high-speed digital control, allowing high-precision conversion and minimized power consumption. This architecture offers excellent common-mode rejection, allowing the ADS1225IRGVRG4 to faithfully convert sensor signals with a supply voltage ranging from 2.5 to 5.5V.The ADS1225IRGVRG4 provides up to 200 kSPS conversion rate and is automatically synchronized with the clock source. It is packaged in a 20-pin TSSOP package, which is ideal for applications requiring a small footprint and low power consumption.The ADS1225IRGVRG4 differs from other precision ADCs in two meaningful ways. First, it possesses a very high signal-to-noise ratio (SNR) that allows it to accurately measure very small signals. Secondly, it features a wide dynamic range, allowing a variety of input signals to be measured without the need to purchase additional devices or use multiple converters.The user interface to the ADS1225IRGVRG4 is simple and straightforward, utilizing a three-wire serial interface. A single-ended clock (SCLK) can run up to 25 MHz, allowing high-speed data transfer. Data can be read from the device in 16, 14, 12, or 10 bit resolution. It also supports two operating modes: free-running (continuous conversion) or single-conversion (one-shot conversion).The ADS1225IRGVRG4 can also be connected to other industry-standard communication buses, such as SPI and I2C. This means that it is easily integrated into systems designed for industry standard buses.In addition to the conversion capabilities, the ADS1225IRGVRG4 also offers some features to reduce ripple and noise in the readings. These features include an on-chip low-pass filter, aperture jitter-reduction, digital-to-analog converter (DAC) output lines, and adjustable band-pass filters. The device also supports an external temperature compensation pin to reduce errors caused by ambient temperature changes.The ADS1225IRGVRG4 is a very versatile, high-precision ADC that offers excellent performance in a variety of data acquisition and control applications. Its low power consumption and small footprint make it ideal for portable systems and battery-powered applications. The wide dynamic range, high SNR, and integrated features make it an ideal solution for data acquisition, transducer interfacing, and system monitoring.

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