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UC3704 PDF预览

UC3704

更新时间: 2024-11-27 12:22:31
品牌 Logo 应用领域
德州仪器 - TI 开关传感器
页数 文件大小 规格书
6页 283K
描述
Bridge Transducer Switch

UC3704 数据手册

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UC3704  
Bridge Transducer Switch  
DESCRIPTION  
FEATURES  
Dual Matched Current Sources  
This integrated circuit contains a complete signal conditioning sys-  
tem to interface low-level variable impedance transducers to a  
digital system. A pair of matched, temperature-compensated cur-  
rent sources are provided for balanced transducer excitation fol-  
lowed by a precision, high-gain comparator. The output of this  
comparator can be delayed by a user-selectable duration, after  
which a second comparator will switch complementary outputs  
separately activated for diagnostic operation and has an optional  
latch with external reset capability. An added feature is a high cur-  
rent power source useful as a heater driver in differential tempera-  
ture sensing applications. The UC3704 is designed for 0°C to  
+70°C environments.  
High-gain Differential Sensing Circuit  
Wide Common-mode Input Capability  
Complementary Digital Open-collector  
Outputs  
Externally Programmable Time Delay  
Optional Output Latch with Reset  
Built-in Diagnostic Activation  
Wide Supply Voltage Range  
High Current Heater Power Source Driver  
UC3704 COMPATIBLE SENSORS  
SENSOR TYPE  
ACTIVATION SOURCE  
Temperature  
Pressure  
Force  
X
Position  
Displacement  
Velocity  
Shock  
Thermistor  
X
X
X
X
X
X
Sensistor  
Thermocouple  
Semiconductor  
Photo Voltaic  
Photo Resistive  
Strain Gage  
Piezoelectric  
Magneto Resistive  
Inductive  
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Hall Effect  
Capacitive  
BLOCK DIAGRAM  
6/93  

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