Features • Calibrated linear scale factor of +10 mV/°C • Rated for full -30° to +100°C range • Suitable for remote applications • UL Recognized Component Description The LM61 is a precision integrated-circuit temperature sensor that can sense a -30°C to +100°C 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°C to +100°C temperature range. The LM61 is calibrated to provide accuracies of ±2.0°C at room temperature and ±3°C over the full -25°C to +85°C 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°C 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. Key Specification Accuracy at 25°C ±2.0 or ±3.0°C (max) Accuracy for -30°C to +100°C ±4.0°C (max) Accuracy for -25°C to +85°C ±3.0°C (max) Temperature Slope +10 mV/°C Power Supply Voltage Range +2.7V to +10V Current Drain @ 25°C 125 µA (max) Nonlinearity ±0.8°C (max) Output Impedance 800 (max) Applications • Cellular Phones • Computers • Power Supply Modules • Battery Management • FAX Machines • Printers • HVAC • Disk Drives • Appliances

Also Recommended LM94022▲ Lower Power, Lower Minimum Supply Voltage & Greater Source Current LM20▲ Smaller Package & Lower Power LM62▲ Downgrade MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application *click for larger image	Connection Diagram *click for larger image *click for larger image
Typical Performance click for larger image

Datasheet

Title		Size	Date	Other Language
	LM61 2.7V, SOT-23 or TO-92 Temperature Sensor	676 Kbytes	15-Aug-05	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-1984: Application Note 1984 LM57 Temperature Switch vs Thermistors	210 Kbytes	28-Jul-09

More Application Notes

Title		Size	Date	Other Language
	AN-662: COP800 Based Automated Security/Monitoring System	137 Kbytes	5-Aug-95

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Standard Pack Size
LM61BIM3/NOPB LM61BIM3 RoHS	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty DIGIKEY Worldwide 3595 FUTURE Worldwide 1100 KEIKONG Asia Pacific 1000 NEWARK Americas 3871 RS COMPONENTS Worldwide 319	$0.43 each at 1K+ pcs	reel of 1000
LM61CIM3/NOPB LM61CIM3 RoHS	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1000 AVNET-EM Worldwide 1000 DIGIKEY Worldwide 7847 FARNELL Europe and Asia 726 FUTURE Worldwide 1100 NEWARK Americas 565 RS COMPONENTS Worldwide 435 TECHMOSA Asia Pacific 3000	$0.30 each at 1K+ pcs	reel of 1000
LM61BIM3X/NOPB RoHS	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 3000 DIGIKEY Worldwide 0 FUTURE Worldwide 1100	$0.43 each at 1K+ pcs	reel of 3000
LM61CIM3X/NOPB RoHS	SOT-23	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 3000 DIGIKEY Worldwide 0	$0.30 each at 1K+ pcs	reel of 3000
LM61BIZ/NOPB RoHS		Full production Lead Time: 8 weeks	Distributor Region Qty DIGIKEY Worldwide 1587 FUTURE Worldwide 1100 NEWARK Americas 1898 RS COMPONENTS Worldwide 560	$0.39 each at 1K+ pcs	box of 1800
LM61CIZ/NOPB LM61CIZ RoHS		Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 12825 AVNET-EM Worldwide 130 DIGIKEY Worldwide 4721 FUTURE Worldwide 1100 KEIKONG Asia Pacific 16200	$0.25 each at 1K+ pcs	box of 1800

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM61DIM3X	LM61BIM3	NATIONAL SEMICONDUCTOR	03 Mar 2006

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM61BIM3	LFAST1	0	19510	0	0	2605000	2	739175862
LM61BIM3X	LFAST1	0	19510	0	0	2605000	2	739175862
LM61BIZ	LFAST1	0	19510	0	0	2605000	2	739175862
LM61CIM3	LFAST1	0	19510	0	0	2605000	2	739175862
LM61CIM3X	LFAST1	0	19510	0	0	2605000	2	739175862
LM61CIZ	LFAST1	0	19510	0	0	2605000	2	739175862

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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Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM61DIM3X	LM61BIM3	NATIONAL SEMICONDUCTOR	03 Mar 2006