參數(shù)資料
型號(hào)： AD8218BRMZ-R7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 11/16頁(yè)
文件大小： 354K
描述： IC CURRENT MONITOR BI-DIR 8MSOP
標(biāo)準(zhǔn)包裝： 1,000
功能： 電流監(jiān)控器
檢測(cè)方法： 高端
精確度： ±0.35%
輸入電壓： 4 V ~ 80 V
工作溫度： -40°C ~ 125°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 8-MSOP
包裝： 帶卷 (TR)
Data Sheet
AD8218
 
Rev. B | Page 11 of 16
APPLICATION NOTES
SUPPLY (V
S
) CONNECTIONS
The AD8218 includes an internal LDO, which allows the user
to leave the VS pin floating, powering the AD8218 directly from
the voltage present at Pin 1 (+IN), provided this voltage is in the
4 V to 80 V range. A typical connection for the part in this
configuration is shown in Figure 29.
+IN
I
LOAD
V
S
SHUNT
GND
IN
REF
LOAD
4V
TO
80V
2.5V
ATTERY
AD8218
OUT
I
CHARGE
ENB
 
Figure 29. Operation with No VS Connection
The AD8218 can also be powered from a separate low impedance
supply at Pin 2 (V
S
); however, this voltage can only be in the 4 V
to 5.5 V range. In cases where the high voltage bus is susceptible
to noise, transients, or high voltage fluctuations and a 5 V supply is
available, the AD8218 can be used in the mode depicted in
Figure 30.
+IN
I
LOAD
V
S
SHUNT
GND
IN
REF
LOAD
4V
TO
80V
ATTERY
AD8218
OUT
I
CHARGE
ENB
5V
2.5V
C
F
 
Figure 30. 5 V Supply Operation
ENABLE PIN (ENB) OPERATION
The AD8218 includes an internal reference that can be enabled
by connecting Pin 3 (ENB) to ground. This mode of operation
is shown in Figure 31.
+IN
I
LOAD
V
S
SHUNT
GND
IN
REF
LOAD
4V
TO
80V
ATTERY
AD8218
OUT
ENB
 
Figure 31. Enabling the Internal 80 mV Reference
In this configuration, the internal 80 mV reference is activated,
and the output of the AD8218 is 80 mV when the differential
input voltage is 0 V and the voltage at Pin 7 (REF) is also 0 V . This
internal reference is useful in unidirectional current measurements
where the current being monitored has a very wide range. Setting
the output starting point to 80 mV means that when the load
current through the shunt resistor is 0 A, the output is 80 mV.
This ensures that the output errors due to initial offset and the
output saturation range of the amplifier are overcome. In this
mode, the transfer function of the AD8218 becomes
OUT (V) = OUT (V) = (20 ?VIN) + 0.08 V
If Pin 3 is connected to ground, and therefore the internal
reference is enabled, 80 mV must always be added to the
transfer function of the AD8218.
 
 
相關(guān)PDF資料
PDF描述
AD8219BRMZ-RL IC CURRENT MONITOR UNI-DIR 8MSOP
ADL5317ACPZ-REEL7 IC CURRENT MONITOR 16LFCSP
ADM1027ARQZ-RL7 IC REMOTE THERMAL CTLR 24QSOP
ADM1029ARQZ-R7 IC SENSOR 2TEMP/FAN CTRL 24QSOP
ADM1030ARQZ-RL7 IC SNSR TEMP/FAN PWM CTRL 16QSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD8218BRMZ-RL 制造商:AD 制造商全稱:Analog Devices 功能描述:Zero Drift, Bidirectional Current Shunt Monitor
AD8219 制造商:AD 制造商全稱:Analog Devices 功能描述:Zero Drift, Unidirectional Current Shunt Monitor
AD8219BRMZ 功能描述:IC CURRENT MONITOR UNI-DIR 8MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 功能:電流開(kāi)關(guān) 檢測(cè)方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-UFQFN 供應(yīng)商設(shè)備封裝:10-UTQFN（1.4x1.8） 包裝:管件
AD8219BRMZ_PROMO 制造商:Analog Devices 功能描述:IC CURRENT MONITOR UNI-DIR
AD8219BRMZ-RL 功能描述:IC CURRENT MONITOR UNI-DIR 8MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 功能:電流開(kāi)關(guān) 檢測(cè)方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-UFQFN 供應(yīng)商設(shè)備封裝:10-UTQFN（1.4x1.8） 包裝:管件
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*