LM62

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SNIS105E – JUNE 1999 – REVISED MARCH 2013

LM62 2.7V, 15.6 mV/°C SOT-23 Temperature Sensor

Check for Samples: LM62

1

FEATURES

DESCRIPTION

The

LM62

is

a

precision

integrated-circuit

2

•

Calibrated Linear Scale Factor of +15.6 mV/°C

temperature sensor that can sense a 0°C to +90°C

•

Rated for Full 0°C to +90°C Range with 3.0V

temperature range while operating from a single

Supply

+3.0V supply. The LM62's output voltage is linearly

•

Suitable for Remote Applications

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

APPLICATIONS

without the need for a negative supply. The nominal

•

Cellular Phones

output voltage of the LM62 ranges from +480 mV to

•

Computers

+1884 mV for a 0°C to +90°C temperature range.

The LM62 is calibrated to provide accuracies of

•

Power Supply Modules

±2.0°C at room temperature and +2.5°C/

−2.0°C over

•

Battery Management

the full 0°C to +90°C temperature range.

•

FAX Machines

The LM62's linear output, +480 mV offset, and factory

•

Printers

calibration simplify external circuitry required in a

•

HVAC

single

supply

environment

where

reading

temperatures down to 0°C is required. Because the

•

Disk Drives

LM62's quiescent current is less than 130

μA, self-

•

Appliances

heating is limited to a very low 0.2°C in still air.

Shutdown capability for the LM62 is intrinsic because

KEY SPECIFICATIONS

its inherent low power consumption allows it to be

powered directly from the output of many logic gates.

•

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 k

Ω (max)

Typical Application

Connection Diagram

See Package Number DBZ

Figure 1. Full-Range Centigrade Temp. Sensor

(0°C to +90°C) Stabilizing a Crystal Oscillator

Temperature (T)

+90°C

+1884 mV

+70°C

+1572 mV

+25°C

870 mV

0°C

+480 mV

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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

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PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.