參數(shù)資料
型號(hào): MAX4180ESA+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 9/24頁(yè)
文件大?。?/td> 0K
描述: IC AMP CURRENT SENSE 8-SOIC
標(biāo)準(zhǔn)包裝: 2,500
放大器類型: 電流反饋
電路數(shù): 1
轉(zhuǎn)換速率: 450 V/µs
-3db帶寬: 245MHz
電流 - 輸入偏壓: 1µA
電壓 - 輸入偏移: 1500µV
電流 - 電源: 1mA
電流 - 輸出 / 通道: 60mA
電壓 - 電源,單路/雙路(±): 4.5 V ~ 11 V,±2.25 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
MAX4180–MAX4187
Single/Dual/Quad, 270MHz, 1mA, SOT23,
Current-Feedback Amplifiers with Shutdown
______________________________________________________________________________________
17
Table 1. Recommended Component Values
245
1.2k
RL = 1k
190
680
RL =
100
-3dB BW (MHz)
190
820
RL = 150
RG (
)
RF (
)
COMPONENT/BW
76
56
560
RL =
1k
/150
AV = +10V/V
205
1k
RL =
150
120
270
2.4k
RL = 1k
130
520
RL =
1k
/150
AV = +5V/V
200
560
RL =
100
AV = +2V/V
AV = +1V/V
MAX4180
MAX4181
AV = +2V/V
245
1k
RL =
1k
160
MAX4182/MAX4183
620
RL =
100
-3dB BW
(MHz)
190
680
RL =
150
RG (
)
RF (
)
COMPONENT/
BW
AV = +2V/V
245
1.1k
RL =
1k
175
MAX4186
680
RL =
100
190
750
RL =
150
AV = +1V/V
270
1.6k
RL =
1k
200
MAX4187
680
RL =
100
205
910
RL =
150
AV = +1V/V
270
1.5k
RL =
1k
180
MAX4184/MAX4185
620
RL =
100
205
750
RL =
150
Choosing Feedback and Gain Resistors
The optimum value of the external-feedback (RF) and
gain-setting (RG) resistors used with the MAX4180–
MAX4187 depends on the closed-loop gain and the
application circuit’s load. Table 1 lists the optimum
resistor values for some specific gain configurations.
One-percent resistor values are preferred to maintain
consistency over a wide range of production lots.
Figures 4a and 4b show the standard inverting and
noninverting configurations. Note: The noninverting cir-
cuit gain (Figure 4) is 1 plus the magnitude of the
inverting closed-loop gain. Otherwise, the two circuits
are identical.
DC and Noise Errors
Several major error sources must be considered in any
op amp. These apply equally to the MAX4180–
MAX4187. Offset-error terms are given by the equation
below. Voltage and current-noise errors are root-square
summed and are therefore computed separately. In
Figure 5, the total output offset voltage is determined by
the following factors:
The input offset voltage (VOS) times the closed-loop
gain (1 = RF / RG).
The positive input bias current (IB+) times the source
resistor (RS) (usually 50
or 75), plus the negative
input bias current (IB-) times the parallel combination
of RG and RF. In current-feedback amplifiers, the
input bias currents at the IN+ and IN- terminals do
not track each other and may have opposite polarity,
so there is no benefit to matching the resistance at
both inputs.
The equation for the total DC error at the output is:
The total output-referred noise voltage is:
e
R
iR
R
e
n OUT
F
G
nS
n
F
G
n
()
||
=+
()
+
()
+
()
+
1
22
2
VOUT
||
=
() + ()
() +
[] +
+
IR
I
R
V
R
BS
B
F
G
OS
F
G
1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4180EUT 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX4180EUT+T 功能描述:視頻放大器 Single 270MHz 1mA Current-Feedback RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel
MAX4180EUT-T 功能描述:視頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel
MAX4180EVKIT 功能描述:放大器 IC 開(kāi)發(fā)工具 Programmers, Development Systems RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
MAX4180-MAX4187 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single/Dual/Quad 270MHZ 1MA SOT23 Current-Feedback Amplifier