SNU501 Resistive sensor interface IC
SNU501 is a interface chip for temperature and pressure sensor. The product is used for sensor specific correction of differential bridge sensor element signals and has the advantages of high accuracy and fast response speed. It has passed the AEC-Q100 standard certification. t can use in industrial or consumer environments .And also it is optimized for automotive environments by overvoltage and reverse polarity protection circuitry, excellent electromagnetic compatibility, and multiple diagnostic features.
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Block Diagram
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Features
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Applications
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Parameters
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Selection Table
Block Diagram
Features
Sensor specific correction of differential bridge sensor element signals
Supply voltage: 4.5V~5.5V
ESD HBM: ±2000V
Latch up: ±200mA
OTP: 256Bytes
Built-in two high resolution 24-bit ADC
Built-in temperature sensor and support external temperature sensor
Interface: SENT/Analog/I2C
Support high and low clamp setting, support sensor diagnosis
Supports analog diagnostic voltage output
Operating temperature range: -40°C ~ +150°C
Applications
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Automotive pressure sensor
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Automotive pressure switch
Parameters
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TypeResistive
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ChannelSingle channel
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Supply voltage4.5~5.5V
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Supply current3mA
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Operating temperature range-40°C~150°C
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Memory256Bytes?(OTP)
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Temperature sampling rate (Max)4.8kHz
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Pressure sampling rate (Max)4.8kHz
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ADC resolution24-bit
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Analog output resolution (DAC)16-bit
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InterfaceSENT/Analog/I2C
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Over-voltage and reverse polarity protection±20V
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ESD HBM±2000V
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QualificationsAEC-Q100 Grade 0