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第 22 頁︰
, ~) R" x" _, L) h: W8 iFigure 67 shows a high-side current monitor configuration. Here, the input common-mode voltage of the amplifier is at or near the positive supply voltage. The rail-to-rail input of the amplifier provides a precise measurement, even with the input common-mode voltage at the supply voltage. The CMOS input structure does not draw any input bias current, ensuring a minimum of measurement error.( W1 J# M5 c4 D2 V$ f# |9 k9 T
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