LM94022BIMG Part Information

Details for LM94022BIMG by Texas Instruments

Electronic & Electrical Components > Sensors & Transducers > Sensors

Part Description

The LM94022/-Q1 device is a precision analog output CMOS integrated-circuit temperature sensor with selectable linear negative temperature coefficient (NTC). A class-AB output structure gives the LM94022/-Q1 strong output source and sink current capability for driving heavy transient loads such as that presented by the input of a sample-and-hold analog-to-digital converter. The low 5.4-µA supply current and 1.5-V operating voltage of the LM94022/Q1 make it ideal for battery-powered systems as well as general temperature-sensing applications. The Gain Select 1 (GS1) and Gain Select 0 (GS0) logic inputs select one of four gains for the temperature-to-voltage output transfer function: −5.5 mV/°C, −8.2 mV/°C, −10.9 mV/°C, and −13.6 mV/°C. Selecting –5.5 mV/°C (GS1 and GS0 both tied low), allows the LM94022/-Q1 to operate down to 1.5-V supply while measuring temperature over the full range of −50°C to +150°C. Maximum temperature sensitivity, –13.6 mV/°C, is selected when GS1 and GS0 are both tied high. The gain-select inputs can be tied directly to VDD or Ground without any pullup or pulldown 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.

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Part Features

  • Extremely Small SC70 Package
  • Footprint Compatible With the Industry-Standard
  • For the Similar Functionality in a TO-92 Package, See LMT84, LMT85, LMT86, or LMT87
  • Four Selectable Gains
  • LM94022/-Q1 is AEC-Q100 Grade 0 qualified and is Manufactured on an Automotive Grade Flow
  • Low 1.5-V to 5.5-V Operation With Low 5.4-u00b5A Supply Current
  • Output is Short-Circuit Protected
  • Push-Pull Output With u00b150-u00b5A Source Current Capability
  • Very Accurate Over Wide Temperature Range of u221250u00b0C to +150u00b0C: u2013 u00b11.5u00baC Temperature Accuracy for 20u00baC to 40u00baC Range u2013 u00b11.8u00baC Temperature Accuracy for u201350u00baC to 70u00baC Range u2013 u00b12.1u00baC Temperature Accuracy for u201350u00baC to 90u00baC Range u2013 u00b12.7u00baC Temperature Accuracy for u201350u00baC to 150u00baC Range

Part Specifications

IC Output Type Voltage
Sensing Accuracy Range ± 2.7°C
Sensing Temperature Min -50°C
Sensing Temperature Max +150°C
Sensor Case Style SC-70
No. of Pins 5Pins
Supply Voltage Min 1.5V
Supply Voltage Max 5.5V
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
SVHC No SVHC (27-Jun-2018)
Base Number 94022
Operating Temperature Max 150°C
Operating Temperature Range -50°C to +150°C
Output Current 50µA
Output Voltage 6.5V
Output Voltage per °C -13.6mV/°C
Sensor / Transducer Type Temperature
Supply Current 5.4µA
Supply Voltage Range 1.5V to 5.5V
Temperature Sensing Range -50°C to +150°C
Termination Type Surface Mount Device
RoHS Compliant

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