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参数资料
| 型号： | MAX9934FART+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA6 |
| 封装： | 1 X 1.50 MM, 0.60 MM HEIGHT, ROHS COMPLIANT, UCSP-6 |
| 文件页数： | 6/21页 |
| 文件大小： | 939K |
| 代理商： | MAX9934FART+T |
MAX9934
A MAX9934 can be deselected by either forcing VCS
low as shown in Figures 4 and 5, or by making VCC =
0V as shown in Figure 6. In all these conditions, the
MAX9934 maintains a high-impedance output with
0.1nA (typ) leakage current. In this state, OUT can rise
above VCC if necessary. Thus, different supply voltages
can be used to power different MAX9934 devices that
are multiplexed on the same OUT bus. Multiplexing by
forcing the MAX9934 to be powered down (VCC = 0V)
reduces its supply current to zero to help extend bat-
tery life in portable applications.
Choosing RSENSE and ROUT
In the current-sense application, the monitored load
current (ILOAD) develops a sense voltage (VSENSE)
across a current-sense resistor (RSENSE). The
MAX9934 sources or sinks an output current that is pro-
portional to VSENSE. Finally, the MAX9934 output cur-
rent is provided to an output resistor (ROUT) to develop
an output voltage across ROUT that is proportional to
the sensed load current.
High-Precision, Low-Voltage, Current-Sense Amplifier
with Current Output and Chip Select for Multiplexing
14
______________________________________________________________________________________
VCC = 3.3V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
MAX9934
ROUT
10k
(OPTIONAL)
ADC
CS2
CS1
MICROCONTROLLER
CS
CS3
VCC = 3.3V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
MAX9934
CS
VCC = 3.3V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
MAX9934
CS
1/4 MAX4737
VIN1
VIN2
VIN3
ILOAD1
OUT3
OUT2
OUT1
0.1
F
0.1
F
0.1
F
ILOAD3
ILOAD2
Figure 6. Multiplexed Amplifiers with Power Saving
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9934FAUA+ | 功能描述:电流灵敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9934FAUA+T | 功能描述:电流灵敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9934TALT+T | 功能描述:电流灵敏放大器 RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9934TART+T | 功能描述:电流灵敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9934TAUA+ | 功能描述:电流灵敏放大器 Precision Current Sense Amp RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
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