Features LM94022Q is AEC-Q100 Grade 0 qualified and is manufactured on an Automotive Grade Flow. Low 1.5V operation Push-pull output with 50µA source current capability Four selectable gains Very accurate over wide temperature range of −50°C to +150°C Low quiescent current Output is short-circuit protected Extremely small SC70 package Footprint compatible with the industry-standard LM20 temperature sensor Description The LM94022 is a precision analog output CMOS integrated-circuit temperature sensor that operates at a supply voltage as low as 1.5 Volts. A class-AB output structure gives the LM94022 strong output source and sink current capability for driving heavy loads. For example, it is well suited to source the input of a sample-and-hold analog-to-digital converter with its transient load requirements. While operating over the wide temperature range of −50°C to +150°C, the LM94022 delivers an output voltage that is inversely porportional to measured temperature. The LM94022's low supply current makes it ideal for battery-powered systems as well as general temperature sensing applications. Two logic inputs, Gain Select 1 (GS1) and Gain Select 0 (GS0), select the gain of the temperature-to-voltage output transfer function. Four slopes are selectable: −5.5 mV/°C, −8.2 mV/°C, −10.9 mV/°C, and −13.6 mV/°C. In the lowest gain configuration (GS1 and GS0 both tied low), the LM94022 can operate with a 1.5V supply while measuring temperature over the full −50°C to +150°C operating range. Tying both inputs high causes the transfer function to have the largest gain of −13.6 mV/°C for maximum temperature sensitivity. The gain-select inputs can be tied directly to VDD or Ground without any pull-up or pull-down resistors, reducing component count and board area. These inputs can also be driven by logic signals allowing the system to optimize the gain during operation or system diagnostics. Key Specification ■  Supply Voltage 1.5V to 5.5V ■ Supply Current 5.4 μA (typ) ■ Output Drive   ±50 μA ■  Temperature Accuracy 20°C to 40°C -50°C to 70°C -50°C to 90°C -50°C to 150°C ±1.5°C ±1.8°C ±2.1°C ±2.7°C ■  Operating Temperature   −50°C to 150°C Applications Cell phones Wireless Transceivers Battery Management Automotive Disk Drives Games Appliances

Also Recommended LM94023▲ Smaller MicroSMD Package (0.8mm X 0.8mm)

LM94022

Also Recommended LM94023▲ Smaller MicroSMD Package (0.8mm X 0.8mm)

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

Paramaters / Values	LM94022	LM94023
Temperature Accuracy (+/-)	1.5 deg C	1.5 deg C
Supply Min	1.5 Volt	1.5 Volt
Quiescent Current_	5.4 uA	8.1 uA
Temperature Min	-50 deg C	-50 deg C
Temperature Max	150 deg C	150 deg C
Sensor Gain	-5.5 to -13.6 mV/degC	-5.5 or -8.2 mV/degC
Supply Max	5.5 Volt	5.5 Volt
Single Supply	Yes	Yes
Output Impedance	5.2 Ohm	4.4 Ohm
Quiescent Current	0.0081 mA	0.0081 mA
AEC Q-100 Automotive Grade	0
Automotive	Yes	Yes
PowerWise	Yes	Yes

Datasheets

Title		Size	Date	Other Language
	LM94022/LM94022Q 1.5V, SC70, Multi-Gain Analog Temperature Sensor with Class-AB Output	989 Kbytes	17-Mar-09	日本語

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM94022BIMG/NOPB LM94022BIMG RoHS Status	SC-70	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1986 AVNET-EM Worldwide 2000 CEAC Asia Pacific 10000 DIGIKEY Worldwide 0 FARNELL Europe and Asia 686 FUTURE Worldwide 1100 NEWARK Americas 181 RS COMPONENTS Worldwide 520 TECHMOSA Asia Pacific 101420	$0.35 each at 1K+ pcs	reel of 1000
LM94022BIMGX/NOPB LM94022BIMGX RoHS Status	SC-70	Full production Lead Time: 16 weeks	Distributor Region Qty DIGIKEY Worldwide 0	$0.35 each at 1K+ pcs	reel of 3000
LM94022QBIMG/NOPB RoHS Status	SC-70	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 1000 DIGIKEY Worldwide 2220 FUTURE Worldwide 1100 NEWARK Americas 1057	$0.50 each at 1K+ pcs	reel of 1000

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

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LM94022EVAL	LM94022EVAL Evaluation Board	Full production	Distributor Region Qty DIGIKEY Worldwide 0	$120.00 each	1

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Part Number(s) (NSID)	Top View	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM94022BIMG/NOPB LM94022BIMG		SC-70	5	1 1	260 260	Detail	Download	T_V_Transefer_Table.txt	22B XTT
LM94022BIMGX/NOPB LM94022BIMGX		SC-70	5	1 1	260 260	Detail	Download	T_V_Transefer_Table.txt	22B XTT
LM94022QBIMG/NOPB		SC-70	5	1	260	Detail	Download	T_V_Transefer_Table.txt	22Q XTT

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

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

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

CAD Symbols and Models Download LM94022 CAD Symbols

Models T_V_Transefer_Table.txt

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM94022BIMG	CMOS7	0	18406	0	0	1089000	4	309006723
LM94022BIMGX	CMOS7	0	18406	0	0	1089000	4	309006723
LM94022QBIMG	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.

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/packaging/leadfree.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/quality/green.

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

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