[Andigilog, Inc.]

General Description

The aTS20 is a precision CMOS temperature sensor that provides a cost-effective solution for space-constrained applications. The output voltage ramp of the aTS20 has a negative slope of -11.77mV/°C. With a supply voltage of 2.4V to 6V, the aTS20 is accurate to ± 2°C at 25°C, and to ± 3°C over the range of −40°C to 125°C. Reducing the supply voltage to 2.4V does not change the negative and positive temperature extremes. As well, the aTS20 does not require external calibration. Calibration of each device is performed at the factory.

Features

• Extremely Low Power

• Precision Calibrated to ±2°C at 25°C

• Ultra Low Operating Current : ≤ 12μA

• Temperature Range: -40°C to 125°C

• Linear Output Ramp: -11.77mV/°C

• Output Ramp is Calibrated to Degrees Celsius

• Low Self Heating: 0.01°C typical in still air

• Uses a Single Positive Supply

• Operating Voltage Range: +2.4V to +6V

• Non-linearity: ≤ 0.8°C

Applications

• Cellular Telephones

• Computers

• Battery Management

• FAX Machines/Printers/Copiers

• Portable Medical Instruments

• HVAC

• Power Supply Modules

• Disk Drives

• Appliances