如附件所示:MSP430F6736说明书中有这样一段文字:
SD24GAINx = 1 ±910 ±920
SD24GAINx = 2 ±455 ±460
SD24GAINx = 4 ±227 ±230
SD24GAINx = 8 ±113 ±115
SD24GAINx = 32 ±28 ±29
SD24GAINx = 64 ±14 ±14.5
SD24GAINx = ±7 ±7.2
那么我在设计模拟前端电路的时候采样电压应该采多少,SD0+与SD0-的差分电压是要在920mV吗?
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如附件所示:MSP430F6736说明书中有这样一段文字:
SD24GAINx = 1 ±910 ±920
SD24GAINx = 2 ±455 ±460
SD24GAINx = 4 ±227 ±230
SD24GAINx = 8 ±113 ±115
SD24GAINx = 32 ±28 ±29
SD24GAINx = 64 ±14 ±14.5
SD24GAINx = ±7 ±7.2
那么我在设计模拟前端电路的时候采样电压应该采多少,SD0+与SD0-的差分电压是要在920mV吗?
你好
SD24 模拟前端可接受差分电压值 为 ± 0.8 * VREF/ GAIN 。选择内部参考时,GAIN = 1, 则典型输入范围为 ±920mV。