ADS58B19IRGZT

Number of A/D Converters:	1
Base Part Number:	ADS58B19
Supplier Device Package:	48-VQFN (7x7)
Package / Case:	48-VFQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	1.7 V ~ 1.9 V
Voltage - Supply, Analog:	1.7 V ~ 1.9 V
Reference Type:	Internal
Architecture:	Pipelined
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	S/H-ADC
Data Interface:	LVDS - Parallel, Parallel
Input Type:	Differential
Number of Inputs:	1
Sampling Rate (Per Second):	250M
Number of Bits:	9
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Analog-to-digital converters (ADCs) play an indispensable role in the process of data acquisition, allowing signals to be captured and converted into digital formats. The ADS58B19IRGZT is an ADC focusing on high resolution and low noise for applications such as medical imaging, instrumentation and audio processing. This article provides an overview of the ADS58B19IRGZT with a focus on its application field and working principle.

Application Field

The ADS58B19IRGZT is a high-performance, low-power, high-resolution analog-to-digital converter (ADC). It is ideal for data acquisition applications where high resolution and low – power consumption is desired. It is designed to deliver exceptional performance in a small package, with a power consumption of only 5.5 mW (at 250 ksps). The ADS58B19IRGZT supports up to a 250 ksps conversion rate, with a maximum linearity of 0.1% over all input ranges. It has a wide supply voltage range, allowing it to be used in a variety of systems.The ADS58B19IRGZT supports two conversion modes: synchronous and asynchronous. In synchronous mode, the ADS58B19IRGZT can sample and convert multiple analog channels at predetermined frequencies up to the maximum rate of 250 ksps. In asynchronous mode, the ADS58B19IRGZT can be set to convert individual channels on demand.The wide range of features and small size of the ADS58B19IRGZT makes it ideal for applications such as medical imaging, instrumentation, audio processing, test and measurement, and consumer products.

Working Principle

The ADS58B19IRGZT is an integrated, single-channel ADC that can be used for analog-to-digital conversion. It uses a two-step architecture that allows it to achieve high resolution and noise performance.The first step of the ADS58B19IRGZT involves the analog-front-end (AFE) amplifier. This is used to amplify the input signal and amplify the offsets and gain mismatches between the channels it supports. The AFE also performs anti-aliasing filtering and peak detection before the signal is passed to the second stage.The second step is the DAC, which uses a pulse-width modulation (PWM) technique to convert the input signal into digital codes. The scale factor is controlled by the PGA, and the codes are summed over an integrator before being output from the ADC.The ADS58B19IRGZT also features glitchless latency management and provisions for auto-calibration, allowing it to perform high-accuracy conversions in environments with changing temperatures or when subjected to dynamic conditions.

Conclusion

The ADS58B19IRGZT is a low-power, high-resolution ADC, suitable for applications that require low power consumption and high accuracy and resolution. Its applications include medical imaging, instrumentation, audio processing, test and measurement, and consumer products. Its two-stage architecture and advanced features such as auto-calibration, peak detection and anti-aliasing filtering make it an ideal choice for data acquisition applications.

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