Description

The FM75 contains 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 is 9).

Thermal alarm output, over-limit signal (OS) 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, the OS is disabled.

Available in a surface mount SOIC-8 (SOP-8) package.

Features

■ User Configurable to 9, 10, 11 or 12-bit Resolution

■ Precision Calibrated to ±1°C, 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 Systems

■ Power Supply Modules

■ Disk Drives

■ Computers

■ Automotive Components