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參數(shù)資料
| 型號(hào)： | AD8211 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | High Voltage Current Shunt Monitor |
| 中文描述： | 高壓電流分流監(jiān)控 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大?。?/td> | 273K |
| 代理商： | AD8211 |
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AD8211
THEORY OF OPERATION
In typical applications, the AD8211 amplifies a small differential
input voltage generated by the load current flowing through
a shunt resistor. The AD8211 rejects high common-mode
voltages (up to 65 V) and provides a ground-referenced,
buffered output that interfaces with an analog-to-digital converter
(ADC). Figure 23 shows a simplified schematic of the AD8211.
Rev. 0 | Page 10 of 16
0
V+
V
OUT
= (I
SHUNT
× R
SHUNT
) × 20
G = +20
AD8211
A1
PROPRIETARY
OFFSET
CIRCUITRY
GND
R1
R
OUT
Q1
R
I
SHUNT
I
IN
R
SHUNT
Figure 23. Simplified Schematic
A load current flowing through the external shunt resistor
produces a voltage at the input terminals of the AD8211. The
input terminals are connected to Amplifier A1 by Resistor R
and Resistor R1. The inverting terminal, which has very high
input impedance is held to
(
V
CM
) (
I
SHUNT
×
R
SHUNT
)
because negligible current flows through Resistor R. Amplifier
A1 forces the noninverting input to the same potential. Therefore,
the current that flows through Resistor R1, is equal to
I
IN
= (
I
SHUNT
×
R
SHUNT
)/
R1
This current (I
IN
) is converted back to a voltage via R
OUT
. The
output buffer amplifier has a gain of 20 V/V and offers excellent
accuracy as the internal gain setting resistors are precision trimmed
to within 0.01% matching. The resulting output voltage is equal to
V
OUT
= (
I
SHUNT
×
R
SHUNT
) × 20
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| AD8211YRJZ-R21 | High Voltage Current Shunt Monitor |
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| AD8212 | High Voltage Current Shunt Monitor |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AD8211WYRJZ-R7 | 制造商:Analog Devices 功能描述:CURRENT SHUNT MONITOR 5PIN SOT-23 - Tape and Reel |
| AD8211WYRJZ-RL | 制造商:Analog Devices 功能描述: |
| AD8211YRJ | 制造商:Analog Devices 功能描述:CURRENT SHUNT MONITOR 4.5V/US 5SOT23 制造商:Analog Devices 功能描述:CURRENT SHUNT MONITOR, 4.5V/US, 5SOT23 制造商:Analog Devices 功能描述:CURRENT SHUNT MONITOR, 4.5V/US, 5SOT23, No. of Amplifiers:1, Input Offset Voltag 制造商:Analog Devices 功能描述:CURRENT SHUNT MONITOR, 4.5V/US, 5SOT23, No. of Amplifiers:1, Input Offset Voltage:1mV, Amplifier Case Style:SOT-23, No. of Pins:5, Bandwidth:500kHz, CMRR:220dB, Supply Voltage Min:4.5V, Supply Voltage Max:5.5V, Supply Current:1.2mA, , RoHS Compliant: Yes |
| AD8211YRJZ-R2 | 功能描述:IC CURRENT MONITOR 0.25% SOT23-5 RoHS:是 類別: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 |
| AD8211YRJZ-R2 | 制造商:Analog Devices 功能描述:IC CURRENT SHUNT MONITOR 500KHZ SOT23-5 |
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