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

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

Datasheets

Title		Size	Date	Other Language
	LM19 2.4V, 10µA, TO-92 Temperature Sensor	262 Kbytes	17-Aug-11	日本語

Other Technical Documents

Title		Type	Date
	Temperature-Sensor Circuit Provides Dual-Slope Output	External Article	2002-01-21
	Temperature Sensor Circuit Provides Dual-Slope Output	Technology Edge	2002-05-01

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM19CIZ/NOPB RoHS Status	TO-92	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 7370 AVNET-EM Worldwide 10799 DIGI-KEY Worldwide 2550 FARNELL Europe and Asia 4114 MOUSER Worldwide 1539 NEWARK Americas 1415 RS COMPONENTS Worldwide 390 RSL MICRO Asia Pacific 3600 TAYLOR Americas 7370	$0.24 each at 1K+ pcs	box of 1800

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM19.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM19 is located at RoHS Status.

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM19CIZ/NOPB	201.662 202.003	TO-92	3	1	NA	Detail	Download	N/A	NSXYTT LM19 CIZ

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM19.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM19 is located at RoHS Status.

CAD Symbols and Models Download LM19 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM19CIZ	CMOS7	0	21301	0	0	1584000	3	449464325

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.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LM19.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LM19 is located at RoHS Status.