ZHCU032K December 2004 – August 2022 MSP430AFE221 , MSP430AFE222 , MSP430AFE223 , MSP430AFE231 , MSP430AFE232 , MSP430AFE233 , MSP430AFE251 , MSP430AFE252 , MSP430AFE253 , MSP430F2001 , MSP430F2002 , MSP430F2003 , MSP430F2011 , MSP430F2012 , MSP430F2013 , MSP430F2101 , MSP430F2111 , MSP430F2112 , MSP430F2121 , MSP430F2122 , MSP430F2131 , MSP430F2132 , MSP430F2132-EP , MSP430F2232 , MSP430F2234 , MSP430F2252 , MSP430F2252-Q1 , MSP430F2254 , MSP430F2272 , MSP430F2272-Q1 , MSP430F2274 , MSP430F2274-EP , MSP430F233 , MSP430F2330 , MSP430F235 , MSP430F2350 , MSP430F2370 , MSP430F2410 , MSP430F2416 , MSP430F2417 , MSP430F2418 , MSP430F2419 , MSP430F247 , MSP430F2471 , MSP430F248 , MSP430F2481 , MSP430F249 , MSP430F2491 , MSP430F2616 , MSP430F2617 , MSP430F2618 , MSP430F2619 , MSP430G2001 , MSP430G2101 , MSP430G2102 , MSP430G2111 , MSP430G2112 , MSP430G2121 , MSP430G2131 , MSP430G2132 , MSP430G2152 , MSP430G2153 , MSP430G2201 , MSP430G2201-Q1 , MSP430G2202 , MSP430G2203 , MSP430G2210 , MSP430G2211 , MSP430G2212 , MSP430G2213 , MSP430G2221 , MSP430G2230 , MSP430G2231 , MSP430G2231-Q1 , MSP430G2232 , MSP430G2233 , MSP430G2252 , MSP430G2253 , MSP430G2302 , MSP430G2303 , MSP430G2312 , MSP430G2313 , MSP430G2332 , MSP430G2333 , MSP430G2352 , MSP430G2353 , MSP430G2402 , MSP430G2403 , MSP430G2412 , MSP430G2413 , MSP430G2432 , MSP430G2433 , MSP430G2444 , MSP430G2452 , MSP430G2453 , MSP430G2513 , MSP430G2533 , MSP430G2544 , MSP430G2553 , MSP430G2744 , MSP430G2755 , MSP430G2855 , MSP430G2955 , MSP430TCH5E
ADC10 模块包含一个具有两个可选电压电平的内置电压基准。设置 REFON=1 使能内部基准。当 REF2_5V = 1 时,内部基准电压为 2.5V。当 REF2_5V = 0 时,基准电压为 1.5V。内部基准电压可在内部使用 (REFOUT = 0),当 REFOUT = 1 时,可通过引脚 VREF+ 在外部使用。只有当引脚 VREF+ 和 VREF- 可用作器件引脚时,才应使用 REFOUT = 1。
可分别通过引脚 A4 和 A3 为 VR+ 和 VR- 提供外部基准。当使用外部基准时,或当 VCC 用作基准时,可以关闭内部基准以节省电力。
通过设置 SREF0 = 1 和 SREF1 = 1,可以缓冲外部正基准 VeREF+(仅限具有 VeREF+ 引脚的器件)。这允许以缓冲电流为代价使用具有大内部电阻的外部基准。当 REFBURST = 1 时,增加的电流消耗仅限于采样转换周期。
ADC10 基准源不像 ADC12 那样需要外部存储电容。