LMT88

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMT88 SNIS175A – MARCH 2013 – REVISED JANUARY 2015 LMT88 2.4-V, 10-µA, SC-70 Temperature Sensor 1 Features 1 Cost-Effective Alternative to Thermistors Rated for Full −55°C to 130°C Range Available in an SC70 Package Predictable Curvature Error Suitable for Remote Applications 2 Applications Industrial HVAC Disk Drives Automotive Portable Medical Instruments Computers Battery Management Printers Power Supply Modules FAX Machines Mobile Phones Automotive 3 Description The LMT88 device is a precision analog output CMOS integrated-circuit temperature sensor that operates over a temperature range of −55°C to 130°C . The power supply operating range is 2.4 V to 5.5 V. The transfer function of LMT88 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LMT88 when specified to a parabolic transfer function is typically ±1.5°C at an ambient temperature of 30°C. The temperature error increases linearly and reaches a maximum of ±2.5°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V, the temperature range extremes are 130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive remains at 130°C. The LMT88 quiescent current is less than 10 μA. Therefore, self-heating is less ...