- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄6061 > AD8209WBRMZ (Analog Devices Inc)IC AMP DIFF HV 8MSOP PDF資料下載
參數(shù)資料
| 型號(hào)： | AD8209WBRMZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 4/16頁(yè) |
| 文件大小： | 0K |
| 描述： | IC AMP DIFF HV 8MSOP |
| 產(chǎn)品培訓(xùn)模塊： | Top Five Instrumentation Amplifier Problems |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 放大器類(lèi)型： | 差分 |
| 電路數(shù)： | 2 |
| 轉(zhuǎn)換速率： | 1 V/µs |
| 增益帶寬積： | 80kHz |
| 電流 - 輸入偏壓： | 50nA |
| 電壓 - 輸入偏移： | 2000µV |
| 電流 - 電源： | 1.6mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 5.5 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： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 765 (CN2011-ZH PDF) |
第1頁(yè)第2頁(yè)第3頁(yè)當(dāng)前第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
AD8209
Data Sheet
Rev. B | Page 12 of 16
APPLICATIONS INFORMATION
HIGH-SIDE CURRENT SENSING
WITH A LOW-SIDE SWITCH
In load control configurations for high-side current sensing with a
low-side switch, the PWM-controlled switch is ground referenced.
An inductive load (solenoid) connects to a power supply/battery.
A resistive shunt is placed between the switch and the load (see
Figure 24). An advantage of placing the shunt on the high side
is that the entire current, including the recirculation current, is
monitored because the shunt remains in the loop when the switch
is off. In addition, shorts to ground can be detected with the shunt
on the high side, enhancing the diagnostics of the control loop. In
this circuit configuration, when the switch is closed, the common-
mode voltage moves down to near the negative rail. When the
switch is opened, the voltage reversal across the inductive load
causes the common-mode voltage to be held one diode drop
above the battery by the clamp diode.
GND
NC
–IN
+IN
A1
+VS
A2
OUT
AD8209
5V
INDUCTIVE
LOAD
SWITCH
SHUNT
CLAMP
DIODE
BATTERY
NC = NO CONNECT
08461-
026
CF
OUTPUT
+
–
Figure 24. Low-Side Switch
In cases where a high-side switch is used for PWM control of the
load current in an application, the AD8209 can be used as shown
in Figure 25. The recirculation current through the freewheeling
diode (clamp diode) is monitored through the shunt resistor. In
this configuration, the common-mode voltage in the application
drops below GND when the FET is switched off. The AD8209
operates down to 2 V, providing an accurate current measurement.
GND
NC
–IN
+IN
A1
+VS
A2
OUT
AD8209
5V
INDUCTIVE
LOAD
SWITCH
SHUNT
CLAMP
DIODE
BATTERY
NC = NO CONNECT
08461-
027
CF
OUTPUT
+
–
Figure 25. High-Side Switch
HIGH-RAIL CURRENT SENSING
In the high-rail current-sensing configuration, the shunt resistor is
referenced to the battery. High voltage is present at the inputs of
the current-sense amplifier. When the shunt is battery referenced,
the AD8209 produces a linear ground-referenced analog output.
Additionally, the AD8214 can be used to provide an overcurrent
detection signal in as little as 100 ns (see Figure 26). This feature is
useful in high current systems where fast shutdown in overcurrent
conditions is essential.
AD8214
INDUCTIVE
LOAD
SWITCH
CLAMP
DIODE
BATTERY
SHUNT
CF
5V
–IN
NC
GND
OVERCURRENT
DETECTION (<100ns)
OUT
VS
+IN
VREG
NC
–IN
GND
A1
A2
+IN
VS
NC
OUT
AD8209
1
2
3
4
8
7
6
5
8
7
6
5
1
2
3
4
+
–
08461-
028
Figure 26. Battery-Referenced Shunt Resistor
LOW-SIDE CURRENT SENSING
In systems where low-side current sensing is preferable, the
AD8209 provides a simple, high accuracy, integrated solution. In
this configuration, the AD8209 rejects ground noise and offers high
input to output linearity, regardless of the differential input voltage.
GND
NC
–IN
+IN
A1
+VS
A2
OUT
AD8209
5V
INDUCTIVE
LOAD
SWITCH
SHUNT
CLAMP
DIODE
BATTERY
NC = NO CONNECT
08461-
029
CF
OUTPUT
Figure 27. Ground-Referenced Shunt Resistor
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD8279ARZ | IC AMP DIFF LP 14SOIC |
| AD8273ARZ | IC AMP AUDIO 2CH DIFF 14SOIC |
| CM1230-02CP | TVS ARRAY ESD PROT 2CH WLCSP4 |
| LTC6102HVCMS8#PBF | IC AMP CURRENT SENSE 8-MSOP |
| AD8056ANZ | IC OPAMP VF DUAL LDIST LN 8DIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8209WBRMZ | 制造商:Analog Devices 功能描述:IC DIFFERENTIAL AMP 80kHZ 1V/ MSOP8 |
| AD8209WBRMZ-R7 | 功能描述:IC AMP DIFF PREC 8MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類(lèi)型:通用 電路數(shù):2 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| AD8209WBRMZ-RL | 功能描述:IC AMP DIFF PREC 8MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類(lèi)型:通用 電路數(shù):2 輸出類(lèi)型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| AD8209WHRMZ | 功能描述:Differential Amplifier 1 Circuit 8-MSOP 制造商:analog devices inc. 系列:汽車(chē)級(jí)，AEC-Q100 包裝:管件 零件狀態(tài):有效 放大器類(lèi)型:差分 電路數(shù):1 輸出類(lèi)型:- 壓擺率:1 V/μs 增益帶寬積:80kHz -3db 帶寬:- 電流 - 輸入偏置:50nA 電壓 - 輸入失調(diào):2mV 電流 - 電源:1.6mA 電流 - 輸出/通道:- 電壓 - 電源，單/雙（±）:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 150°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)商器件封裝:8-MSOP 標(biāo)準(zhǔn)包裝:50 |
| AD8209WHRMZ-RL | 功能描述:Differential Amplifier 1 Circuit 8-MSOP 制造商:analog devices inc. 系列:汽車(chē)級(jí)，AEC-Q100 包裝:帶卷（TR） 零件狀態(tài):在售 放大器類(lèi)型:差分 電路數(shù):1 輸出類(lèi)型:- 壓擺率:1 V/μs 增益帶寬積:80kHz -3db 帶寬:- 電流 - 輸入偏置:50nA 電壓 - 輸入失調(diào):2mV 電流 - 電源:1.6mA 電流 - 輸出/通道:- 電壓 - 電源，單/雙（±）:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 150°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)商器件封裝:8-MSOP 標(biāo)準(zhǔn)包裝:3,000 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。