Precision Integrating Analog Processor With Precision Voltage Reference - Advanced Linear Devices

The ALD500RAU ALD500RA ALD500R are integrating dual slope Analog processors, designed to operate on 5V power supplies for building precision Analog-to-digital converters. The ALD500RAU ALD500RA ALD500R feature specifications suitable for 18 bit/17 bit/16 bit resolution conversion, respectively. Together with three capacitors, two resistors, and a digital controller, a precision Analog to Digital converter with auto zero CAN be implemented. The digital controller CAN be implemented by an external Microcontroller under either hardware (fixed logic) or software control. For ultra high resolution applications, up to 23 bit conversion CAN be implemented with an appropriate digital controller and software. The ALD500R series of Analog processors accept differential inputs and the external digital controller first counts the number of pulses at a fixed Clock rate that a capacitor requires to integrate against an unknown Analog input voltage, then counts the number of pulses required to deintegrate the capacitor against a known internal reference voltage. This unknown Analog voltage CAN then be converted by the Microcontroller to a digital word, which is translated into a high resolution number, representing an accurate reading. This reading, when ratioed against the reference voltage, yields an accurate, absolute voltage measurement reading. By Advanced Linear Devices Inc (ALD)
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ALD500RA Pinout, Pinouts
ALD500RA pinout,Pin out
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