LM95231

LM95231 www.ti.com SNIS139E – FEBRUARY 2005 – REVISED MARCH 2013 LM95231 Precision Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm™ Technology Check for Samples: LM95231 FEATURES 1 2 Accurately Senses Die Temperature of Remote ICs or Diode Junctions Uses TruTherm Technology for Precision “Thermal Diode” Temperature Measurement Thermal Diode Input Stage with Analog Filtering Thermal Diode Digital Filtering Intel Pentium 4 Processor on 90nm Process or 2N3904 Non-ideality Selection Remote Diode Fault Detection On-board Local Temperature Sensing Remote Temperature Readings Without Digital Filtering: – 0.125°C LSb – 10-bits Plus Sign or 11-bits Programmable Resolution – 11-bits Resolves Temperatures Above 127 °C Remote Temperature Readings with Digital Filtering: – 0.03125°C LSb with Filtering – 12-bits Plus Sign or 13-bits Programmable Resolution – 13-bits Resolves Temperatures Above 127°C Local Temperature Readings: – 0.25°C – 9-bits Plus Sign Status Register Support Programmable Conversion Rate Allows User Optimization of Power Consumption Shutdown Mode One-shot Conversion Control SMBus 2.0 Compatible Interface, Supports TIMEOUT 8-pin VSSOP Package KEY SPECIFICATIONS Remote Temperature Accuracy ±0.75°C (max) Local Temperature Accuracy ±3.0°C (max) Supply Voltage 3.0V to 3.6V Supply Current 402μA (typ) APPLICATIONS Processor/Computer System Thermal Management – e.g. Laptop, Desktop, Workstations, Server) Electr...