ADS8345NBG4

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The ADS8345NBG4 is a successive-approximation analog-to-digital converter (ADC). It has a 16-/12-bit conversion resolution within a single-power supply operating range of 2.7 V to 5.5 V. The device features a differential input structure with a reference input which allows a common input signal source to be used between multiple converters over a single supply. With its ultra-low power consumption and fast conversion speed, the ADS8345NBG4 is perfect for a wide range of data acquisition applications.

Application Field

The ADS8345NBG4 device is a great choice for precision data acquisition applications in low-power and space-constrained systems. It is especially suitable for applications that require 16-bit performance such as industrial automation, medical instrumentation, portable instrumentation, or any application needing high-accuracy signal conversion. It can also be used in low-frequency sampling, signal processing, and audio applications. In addition, the device is suitable for battery-powered portable applications like wearables, where its low current consumption is an advantage.

Working Principle

The ADS8345NBG4 works by converting a continuous analog input signal into a discrete digital signal in order to be processed by a computer. The device achieves this by successively approximating the analog signal with a digital representation. This process is known as the successive approximation technique. As the signal is sampled by a 16-/12-bit resolution A/D converter, the output of each conversion is a pair of 8-/12-bit words, representing the most- and least-significant bits. The device can convert up to eight analog inputs in parallel with a conversion rate up to 300 ksps.

The ADS8345NBG4 features an automatic power-down mode and flexible input range – both adjustable by the user. Upon power-down, the device maintains the last conversion result for easy restart, which is useful for battery-powered applications. The device also includes an internal band-gap reference allowing it to reference a single supply voltage.

Overall, the ADS8345NBG4 is a low-power, 12-/16-bit differential input successive-approximation analog-to-digital converter. It combines fast conversion with low-power operation, making it ideal for a variety of data acquisition applications.

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