Features • Rated for full −55°C to +130°C range • Available in a TO-92 package • Predictable curvature error • Suitable for remote applications • UL Recognized Component Description The LM19 is a precision analog output CMOS integrated-circuit temperature sensor that operates over a −55°C to +130°C temperature range. The power supply operating range is +2.4 V to +5.5 V. The transfer function of LM19 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LM19 when specified to a parabolic transfer function is ±2.5°C at an ambient temperature of +30°C. The temperature error increases linearly and reaches a maximum of ±3.8°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V the temperature range extremes are +130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive remains at +130°C. The LM19's quiescent current is less than 10 μA. Therefore, self-heating is less than 0.02°C in still air. Shutdown capability for the LM19 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates or does not necessitate shutdown at all. Key Specification ■  Accuracy at +30°C ±2.5 °C (max) ■  Accuracy at +130°C & −55°C ±3.5 to ±3.8 °C (max) ■  Power Supply Voltage Range +2.4V to +5.5V ■  Current Drain 10 μA (max) ■  Nonlinearity ±0.4 % (typ) ■  Output Impedance 160 Ω (max) ■  Load Regulation     0 μA < IL< +16 μA −2.5 mV (max) Applications • Cellular Phones • Computers • Power Supply Modules • Battery Management • FAX Machines • Printers • HVAC • Disk Drives • Appliances

Also Recommended LM94021▲ Improved Temperature Accuracy Of 1.5 Deg.C MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image
Typical Performance click for larger image

Datasheet

Title		Size	Date	Other Language
	LM19 2.4V, 10μA, TO-92 Temperature Sensor	241 Kbytes	3-Oct-07	日本語

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Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM19CIZ	CMOS7	0	18406	0	0	1089000	4	309006723

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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