参数资料
型号: LT6105HDCB#TRMPBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PDSO6
封装: 2 X 3 MM, LEAD FREE, PLASTIC, DFN-6
文件页数: 8/20页
文件大小: 382K
代理商: LT6105HDCB#TRMPBF
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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相关代理商/技术参数
参数描述
LT6105HDCB-TRPBF 制造商:LINER 制造商全称: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 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1,000 系列:- 放大器类型:电压反馈 电路数:4 输出类型:满摆幅 转换速率:33 V/µs 增益带宽积:20MHz -3db带宽:30MHz 电流 - 输入偏压:2nA 电压 - 输入偏移:3000µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:30mA 电压 - 电源,单路/双路(±):4.5 V ~ 16.5 V,±2.25 V ~ 8.25 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SOIC 包装:带卷 (TR)
LT6105HMS8#TRPBF 功能描述:IC AMP R-R CURRENT SENSE 8-MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1,000 系列:- 放大器类型:电压反馈 电路数:4 输出类型:满摆幅 转换速率:33 V/µs 增益带宽积:20MHz -3db带宽:30MHz 电流 - 输入偏压:2nA 电压 - 输入偏移:3000µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:30mA 电压 - 电源,单路/双路(±):4.5 V ~ 16.5 V,±2.25 V ~ 8.25 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SOIC 包装:带卷 (TR)
LT6105HMS8-PBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Precision, Extended Input Range Current Sense Amplifi er
LT6105HMS8-TRPBF 制造商:LINER 制造商全称:Linear Technology 功能描述:Precision, Extended Input Range Current Sense Amplifi er