1 Features
1• Calibrated Linear Scale Factor of 10 mV/°C
• Rated for Full Temperature Range (–30° to
100°C)
• Suitable for Remote Applications
• UL Recognized Component
• ±2°C or ±3°C Accuracy at 25°C (Maximum)
• ±3°C Accuracy for –25°C to 85°C (Maximum)
• ±4°C Accuracy for –30°C to 100°C (Maximum)
• 10 mV/°C Temperature Slope (Maximum)
• 2.7-V to 10-V Power Supply Voltage Range
• 125-μA Current Drain at 25°C (Maximum)
• ±0.8°C Nonlinearity (Maximum)
• 800-Ω Output Impedance (Maximum)

2 Applications
• Cellular Phones
• Computers
• Power Supply Modules
• Battery Management
• FAX Machines
• Printers
• HVAC
• Disk Drives
• Appliances

3 Description
The LM61 device is a precision, integrated-circuit
temperature sensor that can sense a –30°C to 100°C
temperature range while operating from a single
2.7‑V supply. The output voltage of the LM61 is
linearly proportional to temperature (10 mV/°C) and
has a DC offset of 600 mV. The offset allows reading
negative temperatures without the need for a
negative supply. The nominal output voltage of the
LM61 ranges from 300 mV to 1600 mV for a –30°C to
100°C temperature range. The LM61 is calibrated to
provide accuracies of ±2°C at room temperature and
±3°C over the full –25°C to 85°C temperature range.
The linear output of the LM61, 600-mV offset, and
factory calibration simplify external circuitry required
in a single supply environment where reading
negative temperatures is required. Because the
quiescent current is less than 125 μA, self-heating is
limited to a very low 0.2°C in still air. Shutdown
capability for the LM61 is intrinsic because its
inherent low power consumption allows it to be
powered directly from the output of many logic gates.