USING THE EMBER®EM35X ADC
●This document describes how to use the ADC in the Ember® EM35x, gives an overview of the internal design, discusses design considerations, and provides code examples of fundamental usage. Because the example code uses direct register accesses, there is no fundamental requirement on the rest of the Hardware Abstraction Layer and these examples can be tailored to couple tightly with individual applications.
●The ADC can sample up to 6 signals in either single-ended or differential modes. While the ADC module supports both types of conversion, the input stage always operates in differential mode. Single-ended conversions are performed by connecting one of the differential inputs to VREF/2, while fully differential operation uses two external inputs. Both inputs can be connected to internal sources for calibration purposes.
●In addition to sampling external inputs through GPIOs, the ADC can internally sample the 1.8 V supply (VDD_PADSA/2), VREF, VREF/2, and GND.
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Technical Documentation |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2018/05/20 |
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Rev. 0.3 |
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AN715 |
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424 KB |
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