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参数资料
| 型号： | MAX4473ESA |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications in 8-Pin レMAX |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO8 |
| 封装： | 0.150 INCH, SOIC-8 |
| 文件页数： | 5/6页 |
| 文件大小： | 140K |
| 代理商： | MAX4473ESA |
S ense Resistor S elec tion (R
S ENS E
)
Choose R
SENSE
based on the following criteria:
Voltage Loss:
A high R
SENSE
value causes the
power-source voltage to degrade through IR loss.
For minimal voltage loss, use low R
SENSE
values.
Accuracy:
A high R
SENSE
value allows lower cur-
rents to be measured more accurately because input
offset voltages become less significant when the
sense voltage is larger. For best performance, select
R
SENSE
to provide approximately 100mV of sense
voltage for the full-scale current in each application.
Efficiency and Power Dissipation:
At high current
levels, the I
2
R losses in R
SENSE
are significant. Take
this into consideration when choosing the resistor
value and its power dissipation (wattage) rating.
Also, the sense resistor’s value may drift if it is
allowed to heat up excessively.
M
Low-Cost, Low-Voltage, PA Power Control
Amplifier for GS M Applic ations in 8-Pin μMAX
_______________________________________________________________________________________
5
_________________________Test Circ uit
2N3904
SR1
GND
R
SENSE
SR2
OUT
SR3
PC
SHDN
V
CC
V
CC
C
L
300pF
R
L
10k
RG1
1k
1%
RG2
1k
1%
RG3
2.5k
1%
100
0.1%
0.1μF
MAX4473
R
E
750
Pin Configuration
SR3
GND
PC
1
2
8
7
V
CC
OUT
SR2
SR1
μMAX/SO
TOP VIEW
3
4
6
5
MAX4473
SHDN
Chip Information
TRANSISTOR COUNT: 348
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4473ESA-T | 功能描述:射频放大器 PA Power Control Amp for GSM Aps RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX4473ETA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4473ETA-T | 制造商:Maxim Integrated Products 功能描述:LOW-COST, LOW-VOLTAGE, PA POWER CONTROL AMPLI - Tape and Reel |
| MAX4473EUA | 功能描述:功率放大器 PA Power Control Amp for GSM Aps RoHS:否 制造商:TriQuint Semiconductor 封装 / 箱体: 工作电源电压:28 V 电源电流:2.5 A 工作温度范围: 封装: |
| MAX4473EUA+ | 功能描述:功率放大器 PA Power Control Amp for GSM Aps RoHS:否 制造商:TriQuint Semiconductor 封装 / 箱体: 工作电源电压:28 V 电源电流:2.5 A 工作温度范围: 封装: |
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