LM61

Features:

`Calibrated linear scale factor of +10 mV/
`Rated for full -30°to +100 range
`Suitable for remote applications





Application

·Cellular Phones
·Computers
·Power Supply Modules
·Battery Management
·FAX Machines
·Printers
·HVAC
·Disk Drives
·Appliances




Specifications

Supply Voltage +12V to -0.2V
Output Voltage (+VS + 0.6V) to
-0.6V
Output Current 10 mA
Input Current at any pin (Note 2) 5 mA
Storage Temperature - 65 to +150
Maximum Junction Temperature
(T_JMAX)+125
ESD Susceptibility (Note 3) :
Human Body Model 2500V
Machine Model 250V
Lead Temperature:
TO-92 Package:
Soldering (10 seconds) +260
SOT-23 Package (Note 4):
Vapor Phase (60 seconds) +215
Infrared (15 seconds) +220

Temperature Accuracy (+/-)	3, 2 deg C
Supply Min	2.7 Volt
Quiescent Current_	82 uA
Temperature Min	-25, -30 deg C
Temperature Max	85, 100 deg C
Sensor Gain	10 mV/Deg C
Supply Max	10 Volt
Single Supply	Yes
Output Impedance	800 Ohm
Quiescent Current	0.082 mA
Automotive Selection Guide	Yes
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Description

The LM61 is a precision integrated-circuit temperature sensor that can sense a -30 to +100 temperature range while operating from a single +2.7V supply. The LM61's output voltage is linearly proportional to Celsius (Centigrade) 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 to +100 temperature range. The LM61 is calibrated to provide accuracies of ±2.0 at room temperature and ±3 over the full -25 to +85 temperature range.

The LM61's linear output, +600 mV offset, and factory calibration simplify external circuitry required in a single supply environment where reading negative temperatures is required. Because the LM61's quiescent current is less than 125 µA, self-heating is limited to a very low 0.2 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.