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NUC140-LB1E Fiches technique(PDF) 87 Page - Nuvoton Technology Corporation |
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NUC140-LB1E Fiches technique(HTML) 87 Page - Nuvoton Technology Corporation |
87 / 107 page NUC100/120xxxDN Aug 31, 2015 Page 87 of 107 Rev 1.01 Analog-to-Digital Converter (ADC) 6.21 6.21.1 Overview The NuMicro ® NUC100 series contains one 12-bit successive approximation analog-to-digital converters (SAR A/D converter) with 8 input channels. The A/D converter supports three operation modes: single, single-cycle scan and continuous scan mode. The A/D converter can be started by software, PWM Center-aligned trigger and external STADC pin. 6.21.2 Features Analog input voltage range: 0~VREF 12-bit resolution and 10-bit accuracy is guaranteed Up to 8 single-end analog input channels or 4 differential analog input channels Up to 760 kSPS conversion rate as ADC clock frequency is 16 MHz (chip working at 5V) Three operating modes –Single mode: A/D conversion is performed one time on a specified channel –Single-cycle scan mode: A/D conversion is performed one cycle on all specified channels with the sequence from the smallest numbered channel to the largest numbered channel –Continuous scan mode: A/D converter continuously performs Single-cycle scan mode until software stops A/D conversion An A/D conversion can be started by: –Writing 1 to ADST bit through software –PWM Center-aligned trigger –External pin STADC Conversion results are held in data registers for each channel with valid and overrun indicators Conversion result can be compared with specify value and user can select whether to generate an interrupt when conversion result matches the compare register setting Channel 7 supports 3 input sources: external analog voltage, internal Band-gap voltage, and internal temperature sensor output |
Numéro de pièce similaire - NUC140-LB1E |
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Description similaire - NUC140-LB1E |
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