The output voltage, VOUT is simply I
參數(shù)資料
型號: LT6105HDCB#TRMPBF
廠商: Linear Technology
文件頁數(shù): 8/20頁
文件大小: 0K
描述: IC AMP CURRENT SENSE R-R 6-DFN
標準包裝: 500
放大器類型: 電流檢測
電路數(shù): 1
轉換速率: 2 V/µs
-3db帶寬: 100kHz
電壓 - 輸入偏移: 100µV
電流 - 電源: 300µA
電流 - 輸出 / 通道: 1mA
電壓 - 電源,單路/雙路(±): 2.85 V ~ 36 V,±1.425 V ~ 18 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 6-WFDFN 裸露焊盤
供應商設備封裝: 6-DFN-EP(2x3)
包裝: 帶卷 (TR)
LT6105
16
6105fa
Output Filtering
The output voltage, VOUT is simply IOUT ZOUT. This
makes ltering straightforward. Any circuit may be used
which generates the required ZOUT to get the desired lter
response. For example, a capacitor in parallel with ROUT
will give a low pass response. This will reduce unwanted
noise from the output, and may also be useful as a charge
reservoir to keep the output steady while driving a switch-
ing circuit such as a mux or an ADC. This output capacitor
in parallel with an output resistor will create a pole in the
output response at:
f
RC
db
OUT
3
1
2
=
π
APPLICATIONS INFORMATION
Response Time
The LT6105 is designed to exhibit fast response to inputs
for the purpose of circuit protection or signal transmission.
This response time will be affected by the external circuit
in two ways—delay and speed. If the output current is
very low and an input transient occurs, there may be an
increased delay before the output voltage begins changing.
This can be improved by increasing the minimum output
current, either by increasing RSENSE or decreasing RIN. The
effect of increased output current is illustrated in the step
response curves in the Typical Performance Characteristics
section of this data sheet. Note that the curves are labeled
with respect to the initial output currents. The speed is
also affected by the external circuit. In this case, if the
input changes very quickly, the internal amplier will slew
the base of the internal output PNP (Figure 1) in order to
maintain the internal loop. This results in current owing
through RIN and the internal PNP. This current slew rate
will be determined by the amplier and PNP characteris-
tics as well as the input resistor, RIN. See the Slew Rate
vs RIN curve in the Typical Performance Characteristics
section. Using a smaller RIN will allow the output current
to increase more quickly, decreasing the response time
at the output. This will also have the effect of increasing
the maximum output current.
+
0.039Ω
249Ω
4.99k
LT6105
TO LOAD
SOURCE
0V TO 44V
VOUT = 780mV/A
VOUT
0.22μF
6105 TA02
2.85V TO 36V
VS
+
VS
–IN
+IN
V
V +
Gain of 20 Current Sense Amplier with Output Filtering
TYPICAL APPLICATIONS
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相關代理商/技術參數(shù)
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LT6105HDCB-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, Extended Input Range Current Sense Amplifi er
LT6105HMS8#PBF 功能描述:IC AMP R-R CURRENT SENSE 8-MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源,單路/雙路(±):4.5 V ~ 16.5 V,±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC(0.154",3.90mm 寬) 供應商設備封裝:14-SOIC 包裝:帶卷 (TR)
LT6105HMS8#TRPBF 功能描述:IC AMP R-R CURRENT SENSE 8-MSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源,單路/雙路(±):4.5 V ~ 16.5 V,±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC(0.154",3.90mm 寬) 供應商設備封裝:14-SOIC 包裝:帶卷 (TR)
LT6105HMS8-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, Extended Input Range Current Sense Amplifi er
LT6105HMS8-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision, Extended Input Range Current Sense Amplifi er