Description
Within the FM75 are: a high-precision CMOS temperature sensor, a Delta-Sigma analog-to-digital converter and a SMBus compatible serial digital interface. Typical accuracy is ±2°C over the full temperature range of –40°C to 125°C and to ±1°C over the range of 0°C to 100°C, with 9- to 12-bit resolution. Default resolution is 9 bits.
Thermal Alarm output, OS (Over-limit Signal) supports Interrupt and Comparator modes. OS is active, if the user-programmable trip-temperature is exceeded. When the temperature falls below the trip-temperature plus the user-programmable hysteresis limit, OS is disabled.
Available packages are surface mount SOIC-8 (SOP-8) and MSOP-8.

Features
• User Configurable to 9, 10, 11 or 12-bit Resolution
• Precision Calibrated to ±1°C from 0°C to 100°C Typical
• Temperature Range: –40°C to 125°C
• Low Operating Current (less than 250µA)
• Low Self Heating (0.2°C max in still air)
• Operating Voltage Range: 2.7V to 5.5V

Applications
• Battery Management
• FAX Management
• Printers
• Portable Medical Instruments
• HVAC
• Power Supply Modules
• Disk Drives
• Computers
• Automotive