LM94021-Q1 Series

Automotive Grade, ±1.5°C Temperature Sensor with Multiple Gain Analog Output Options

Catalog

Automotive Grade, ±1.5°C Temperature Sensor with Multiple Gain Analog Output Options

Part	Output Type	Mounting Type	Supplier Device Package	Sensing Temperature - Local [Max]	Sensing Temperature - Local [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Resolution [Max]	Resolution [Min]	Sensor Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Features	Test Condition [Max]	Test Condition [Min]	Test Condition	Accuracy - Highest (Lowest)	Package / Case	Grade	Qualification
Texas Instruments LM94021BIMG/NOPB	Analog Voltage	Surface Mount	SC-70-5	150 °C	-50 °C	150 °C	-50 °C	13.6 mV/°C	5.5 mV/°C	Analog Local	5.5 V	1.5 V	Programmable Resolution	40 °C	20 °C	-50°C ~ 150°C	1.5 °C 2.7 °C	5-TSSOP SC-70-5 SOT-353
Texas Instruments LM94021BIMGX/NOPB	Analog Voltage	Surface Mount	SC-70-5	150 °C	-50 °C	150 °C	-50 °C	13.6 mV/°C	5.5 mV/°C	Analog Local	5.5 V	1.5 V	Programmable Resolution	40 °C	20 °C	-50°C ~ 150°C	1.5 °C 2.7 °C	5-TSSOP SC-70-5 SOT-353
Texas Instruments LM94021BIMG	Analog Voltage	Surface Mount	SC-70-5	150 °C	-50 °C	150 °C	-50 °C	13.6 mV/°C	5.5 mV/°C	Analog Local	5.5 V	1.5 V	Programmable Resolution	40 °C	20 °C	-50°C ~ 150°C	1.5 °C 2.7 °C	5-TSSOP SC-70-5 SOT-353
Texas Instruments LM94021QBIMGX/NOPB	Analog Voltage	Surface Mount	SC-70-5	150 °C	-50 °C	150 °C	-50 °C	13.6 mV/°C	5.5 mV/°C	Analog Local	5.5 V	1.5 V	Programmable Resolution	40 °C	20 °C	-50°C ~ 150°C	1.5 °C 2.7 °C	5-TSSOP SC-70-5 SOT-353	Automotive	AEC-Q100
Texas Instruments LM94021BIMGX	Analog Voltage	Surface Mount	SC-70-5	150 °C	-50 °C	150 °C	-50 °C	13.6 mV/°C	5.5 mV/°C	Analog Local	5.5 V	1.5 V	Programmable Resolution	40 °C	20 °C	-50°C ~ 150°C	1.5 °C 2.7 °C	5-TSSOP SC-70-5 SOT-353

Catalog

Automotive Grade, ±1.5°C Temperature Sensor with Multiple Gain Analog Output Options

Key Features

• LM94021Q is AEC-Q100 Grade 0 Qualifiedand is Manufactured on an Automotive Grade FlowLow 1.5V OperationFour Selectable GainsVery Accurate Over Wide Temperature Range of−50°C to +150°CLow Quiescent CurrentOutput is Short-Circuit ProtectedExtremely Small SC70 PackageFootprint Compatible with the Industry-StandardLM20 Temperature SensorUL Recognized ComponentLM94021Q is AEC-Q100 Grade 0 Qualifiedand is Manufactured on an Automotive Grade FlowLow 1.5V OperationFour Selectable GainsVery Accurate Over Wide Temperature Range of−50°C to +150°CLow Quiescent CurrentOutput is Short-Circuit ProtectedExtremely Small SC70 PackageFootprint Compatible with the Industry-StandardLM20 Temperature SensorUL Recognized Component

Description

The LM94021 is a precision analog output CMOS integrated-circuit temperature sensor that operates at a supply voltage as low as 1.5V. While operating over the wide temperature range of −50°C to +150°C, the LM94021 delivers an output voltage that is inversely proportional to measured temperature. The LM94021'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 LM94021 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 VDDor 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. The LM94021 is a precision analog output CMOS integrated-circuit temperature sensor that operates at a supply voltage as low as 1.5V. While operating over the wide temperature range of −50°C to +150°C, the LM94021 delivers an output voltage that is inversely proportional to measured temperature. The LM94021'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 LM94021 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 VDDor 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.