Low power current monitors offer accurate current measurement

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By eeNews Europe

Coupled with their low operating current performance of 3 µA, the ZXCT11xx series provide a wide common-mode voltage range, of 2.5 V to 36 V.  The devices’ extended -40 to 125ºC temperature range, are well suited to higher supply voltage automotive, industrial and white goods circuit design.

Requiring a single external gain setting resistor in addition to a low value sense resistor, the ZXCT11xx monitors are simple to use, keep component count to a minimum and save space with their SOT23 packaging.  Sensing current on the high-side also avoids any ground plane disruption.


Offering a range of pin-outs to help optimize board layouts, the ZXCT1107 and ZXCT1109 are 3-pin SOT23 package variants. The ZXCT1110 is a 5-pin device with a separate ground pin facilitating improved performance.  The parts are priced from $0.3 each in 10k quantities.

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