LM62 Texas instruments

LM62

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LM62

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Описание

The LM62 is a precision integrated-circuit temperature sensor that can sense a 0°C to +90°C temperature range while operating from a single +3.0V supply. The LM62's output voltage is linearly proportional to Celsius (Centigrade) temperature (+15.6 mV/°C) and has a DC offset of +480 mV. The offset allows reading temperatures down to 0°C without the need for a negative supply. The nominal output voltage of the LM62 ranges from +480 mV to +1884 mV for a 0°C to +90°C temperature range. The LM62 is calibrated to provide accuracies of ±2.0°C at room temperature and +2.5°C/−2.0°C over the full 0°C to +90°C temperature range. The LM62's linear output, +480 mV offset, and factory calibration simplify external circuitry required in a single supply environment where reading temperatures down to 0°C is required. Because the LM62's quiescent current is less than 130 μA, self-heating is limited to a very low 0.2°C in still air. Shutdown capability for the LM62 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates.

Calibrated Linear Scale Factor of +15.6 mV/°C
Rated for Full 0°C to +90°C Range with 3.0V Supply
Suitable for Remote Applications

Key Specifications

Accuracy at 25°C ±2.0 or ±3.0°C (max)
Temperature Slope +15.6 mV/°C
Power Supply Voltage Range +2.7V to +10V
Current Drain @ 25°C 130 μA (max)
Nonlinearity ±0.8°C (max)
Output Impedance 4.7 kΩ (max)

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Local sensor accuracy (max)	2
Operating temperature range (°C)	0 to 90
Supply voltage (min) (V)	2.7
Supply voltage (max) (V)	10
Supply current (max) (µA)	130
Interface type	Analog output
Sensor gain (mV/°C)	15.6
Rating	Catalog