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SPEAR-09-H022 Datasheet(PDF) 59 Page - STMicroelectronics |
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SPEAR-09-H022 Datasheet(HTML) 59 Page - STMicroelectronics |
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59 / 71 page  SPEAR-09-H022 ADC 59/71 20 ADC 20.1 Overview The ADC integrated in SPEAr Head200 is the ST-ADC8MUX16 and it is connected to APB Bus. It is a successive approximation ADC and its main features are: ● 8 bit resolutions ● 230 Ksps ● 16 analog input channels (0 - 3.3 V) ● INL ± 1 LSB ● DNL ± 0.5 LSB ● Programmable conversion speed - minimum conversion time 4.3 µs For any ADC input channel the number of collected samples for the average can be 1 or 2's power, up to 128. Positive and negative reference voltages are supply by dedicated pins: – positive → VREFP_adc pin – negative → VREFN_adc pin 20.2 Functional description Conversion starts when enabling bit is set to 1; as it finishes, an interrupt signal is generated (a bit of conversion ready is set to 1). At this point the reading of the data could begin and when it finishes, conversion ready and the enabling bits becomes 0. The signals accessible off-chip are listed in Table 15 External pins of ADC macro. Table 15. External pins of ADC macro SIGNAL DIRECTION DESCRIPTION AID[15:0] Input Analog channels |
Similar Part No. - SPEAR-09-H022_06 |
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Similar Description - SPEAR-09-H022_06 |
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