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) MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

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

Datasheet

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

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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.

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