ZXCT1051E5TA【PDF 8/10 页】IC CURRENT MONITOR 1% SOT23-5

ZXCT1051

Issue 2 - November 2006

www.zetex.com

?Zetex Semiconductors plc 2006

The ZXCT1051 has been designed to allow it to operate from supplies (V

) ranging from 2.7V to

20V while sensing common mode signals from 0V up to V

-2V.

When choosing appropriate values for R

SENSE

a compromise must be reached between in-line

signal loss (including potential power dissipation effects) and small signal accuracy.

Higher values for R

SENSE

gives better accuracy at low load currents by reducing the inaccuracies

due to internal offsets. For best operation the ZXCT1051 has been designed to operate with

SENSE

of the order of 50mV to 150mV.

Due to the very nature of current monitors they tend to saturate at very low sense voltages. This

is due to them being operated from single supply and that the basic configuration is that of a

unipolar voltage to current to voltage converter. The internal amplifiers at the heart of the current

monitor may well have a bipolar offset voltage but the output cannot go negative.

For this reason the ZXCT1051 has been designed to operate in a linear manner over a V

SENSE

range of 10mV to 150mV range, however it will still be monotonic down to V

SENSE

of 0V.

The device has a fixed DC voltage gain of 10; no external scaling resistors are required for the

output. Output voltage is simply defined as:

OUT

= gain x V

SENSE

(V)

发布紧急采购，3分钟左右您将得到回复。

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购