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High-precision and Low-power Analog Output Temperature Sensor
NST235 is a series of precision CMOS integrated circuit linear analog output temperature sensor. Input voltages range is from 2.3V to 5.5V. The maximum temperature error in the whole temperature range is within ±2.5℃. 20μA typical operating mode current and 0.1μA typical turn-off current can greatly reduce the power loss of battery-powered equipment. Class-AB output drivers provide a powerful maximum output of 500µA, which can drive capacitive loads up to 1000pF, and can be directly connected to the ADC sample-hold input end. With excellent accuracy and a powerful linear output driver, the NST235 analog output temperature sensor is an extremely cost-effective alternative to passive thermistors.
Product Features
• Operating temperature range:
- NST235: -40℃~150°C
• High accuracy: ±1.5℃ (typical)
• Wide input voltage range: 2.4V~5.5V
• Output drive capacity：500μA
• Output short circuit protection
• Analog output parameter:
- NST235: 10 mV/℃ positive slope output
• Low static current:
- Operating mode current 20μA (typical)
- Turn-off current 0.1μA (typical)
Application
• Smart phones, computers, fax machines, printers, etc.
• Automotive infotainment system
• Portable medical device
• Industrial automation and control
• Wireless and telecommunications infrastructure
• Grid infrastructure
• Environmental monitoring and HVAC
• Electronic testing equipment
Functional Block Diagram
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