Analog Output Temperature Sensor in TO-92

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 2.5 Operating temperature range (C) -55 to 130 Supply voltage (Min) (V) 2.4 Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 7 Interface type Analog output Sensor gain (mV/Deg C) -11.7 Rating Catalog Features UL recognized open-in-new Find other Analog temperature sensors

Package | Pins | Size

TO-92 (LP) 3 19 mm² 5.2 x 3.68 open-in-new Find other Analog temperature sensors

Features

  • Rated for Full −55°C to +130°C Range
  • Available in a TO-92 Package
  • Predictable Curvature Error
  • Suitable for Remote Applications
  • UL Recognized Component

Key Specifications

  • Accuracy at +30°C ±2.5 °C (max)
  • Accuracy at +130°C & −55°C ±3.5 to ±3.8 °C (max)
  • Power Supply Voltage Range +2.4V to +5.5V
  • Current Drain 10 μA (max)
  • Nonlinearity ±0.4 % (typ)
  • Output Impedance 160 Ω (max)
  • Load Regulation
    • 0µA < IL< +16 µA

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Description

The LM19 is a precision analog output CMOS integrated-circuit temperature sensor that operates over a −55°C to +130°C temperature range. The power supply operating range is +2.4 V to +5.5 V. The transfer function of LM19 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LM19 when specified to a parabolic transfer function is ±2.5°C at an ambient temperature of +30°C. The temperature error increases linearly and reaches a maximum of ±3.8°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V the temperature range extremes are +130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive remains at +130°C.

The LM19's quiescent current is less than 10 μA. Therefore, self-heating is less than 0.02°C in still air. Shutdown capability for the LM19 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates or does not necessitate shutdown at all.

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Technical documentation

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Type Title Date
* Datasheet LM19 2.4V, 10A, TO-92 Temperature Sensor datasheet (Rev. E) Mar. 20, 2013
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
More literature UL Certificate of Compliance Vol1-Sec10 E232195 Aug. 06, 2018
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018

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