ADS5421Y/R

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Number of Bits:	14
Sampling Rate (Per Second):	40M
Number of Inputs:	1
Input Type:	Differential
Data Interface:	Parallel
Configuration:	S/H-ADC
Ratio - S/H:ADC:	1:1
Number of A/D Converters:	1
Architecture:	Pipelined
Reference Type:	External, Internal
Voltage - Supply, Analog:	5V
Voltage - Supply, Digital:	5V
Features:	--
Operating Temperature:	-40°C ~ 85°C
Package / Case:	64-LQFP
Supplier Device Package:	64-LQFP (10x10)
Base Part Number:	ADS5421

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<p>Data Acquisition - Analog to Digital converters (ADC) play an important role in many everyday tasks, from reading the temperature of a refrigerator to measuring a voltage level for a circuit. The ADS5421Y/R is an example of a widely-used low-power, 14-bit SAR ADC that features both low noise and high accuracy, making it ideal for a range of applications. This article will discuss the potential applications of the ADS5421Y/R, as well as its underlying working principles.</p><h3>ADS5421Y/R Applications</h3><p>The Ads5421Y/R is a versatile ADC that can be employed in a number of different applications. For example, it can be used for a variety of industrial applications, such as temperature and pressure sensing. It is also suitable for high-precision and low-noise medical applications, such as monitoring the heart and respiratory rates in a patient. In addition, the device is ideal for accuracy-critical applications, such as in wireless communication systems and telecommunications. Finally, the device is suitable for use in automobiles for engine control and diagnostics.</p><p>The versatility of the ADS5421Y/R ADC is due to its unique design. The device features a wide input voltage range of 0V – 2.7V, which makes it suitable for use with both single-ended and differential signals. Furthermore, it has a high sampling rate of up to 1.5MSPS, making it capable of providing highly-accurate and rapid data acquisition. In addition, its low power consumption ensures that the device can be employed both in portable and embedded applications. The device also features exceptional linearity and low noise, ensuring its high accuracy in a myriad of applications.</p><h3>ADS5421Y/R Working Principle</h3><p>The ADS5421Y/R is a Sar ADC, meaning it operates using a Successive Approximation Register (SAR). The SAR architecture works by comparing an input signal, which is typically an analog value, to a predefined threshold. If the analog signal is larger than the threshold, the resulting digital output is a 1, and a 0 otherwise. This comparison process is repeated over a series of cycles, working from MSB to LSB, until the threshold aligns with the input signal and the digital output is generated. This SAR architecture allows for rapid and accurate conversions to take place, making it ideal for a number of applications.</p><p>The ADS5421Y/R also features an improved sampling technique, known as the SCFD technique, which ensures superior noise immunity and high accuracy. This improvement is achieved by controlling the DAC output voltage according to the input voltage, while keeping the clock period fixed. This leads to a more stable output, and hence higher accuracy.</p><p>In addition to its high accuracy, the ADS5421Y/R also features a wide range of power saving features. For example, it has a flexible power-down mode, which allows the device to enter into a low power state when not in use. Furthermore, the device also features a low-jitter clock and Dual-Output Data-Clock option, allowing for fast conversions and power reduction.</p><h3>Conclusion</h3><p>The ADS5421Y/R is an ideal ADC for a range of applications, from industrial process control to medical applications. Thanks to its high sampling rate, low power consumption and exceptional linearity and noise immunity, the ADS5421Y/R is also capable of providing high-accuracy and rapid data acquisition. Furthermore, its integrated features, such as its SCFD technique, low-jitter clock and Dual-Output Data-Clock option, ensure superior noise immunity and power saving features.</p>

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