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 的内部基准电压产生器是为低功耗应用而设计的。基准发生器包含一个带隙电压源和一个单独的缓冲器。每个基准的电流消耗分别在具体器件的数据表中给出。当 REFON = 1 时,这两者都被启用,当 REFON=0 时,这两者都被禁用。设置 REFON 时的总稳定时间约为 30µs。
当 REFON = 1,但没有转换处于活动状态时,缓冲器会自动禁用,并在需要时自动重新启用。当缓冲器被禁用时,无电流消耗。这种情况下,带隙电源保持被启用。
当 REFOUT = 1 时,REFBURST 位控制内部基准缓冲器的运行。当 REFBURST = 0 时,缓冲器持续开启,从而允许器件外部持续存在基准电压。当 REFBURST = 1 时,缓冲器在 ADC10 没有进行主动转换时自动禁用,并在需要时自动重新启用。
内部基准缓冲器也可以相对于功率设置来选择速度。当最大转换速率低于 50ksps 时,设置 ADC10SR = 1 可将缓冲器的电流消耗降低约 50%。