TI LM94021BIMGX/NOPB

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℃ to +150℃, 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/℃, -8.2 mV/℃, -10.9 mV/℃, and -13.6 mV/℃. 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℃ to +150℃ operating range. Tying both inputs high causes the transfer function to have the largest gain of -13.6 mV/℃ 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.

• LM94021Q is AEC-Q100 Grade 0 Qualified and is Manufactured on an Automotive Grade Flow
• Low 1.5V Operation
• Four Selectable Gains
• Very Accurate Over Wide Temperature Range of -50℃ to ±150℃
• Low Quiescent Current
• Output is Short-Circuit Protected
• Extremely Small SC70 Package
• Footprint Compatible with the Industry Standard LM20 Temperature Sensor
• UL Recognized Component

• Cell Phones
• Wireless Transceivers
• Battery Management
• Automotive
• Disk Drives
• Games Appliances