The ALD521D is a digital controller designed to Interface to the ALD500 or ALD500R integrating dual slope Analog processors as a chip set for building a precision Analog-to-digital converter. With the ALD521D and ALD500R together with a few external capacitors and resistors, a precision Analog to Digital converter with auto zero and auto-polarity CAN be implemented. The ALD521D CAN operate in either a stand-alone mode or in an external Microprocessor control mode. In the stand-alone mode, the ALD521D CAN either making continuous measurements or a single measurement. Under external Microprocessor control, the ALD521D CAN directly interact with a PC under PC software control via a standard parallel printer port with no other components, or it CAN also communicate with other Microcontrollers serially. By Advanced Linear Devices Inc (ALD)
ALD521D 's PackagesALD521D 's pdf datasheet

ALD521D Pinout, Pinouts
ALD521D pinout,Pin out
This is one package pinout of ALD521D,If you need more pinouts please download ALD521D's pdf datasheet.

ALD521D Application circuits
ALD521D circuits
This is one application circuit of ALD521D,If you need more circuits,please download ALD521D's pdf datasheet.

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