Texas Instruments LM19
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.| Part No. | LM19 |
|---|---|
| Datasheet | LM19 Download |
| Manufacturer |  Texas Instruments |
| Description | TO-92 Temperature Sensor |
| Buy | Stock & Price |
FEATURES
1●2 Rated for Full −55°C to +130°C Range
● Available in a TO-92 Package
● Predictable Curvature Error
● Suitable for Remote
APPLICATIONS
● UL Recognized ComponentAPPLICATIONS
● Cellular Phones● Computers
● Power Supply Modules
● Battery Management
● FAX Machines
● Printers
● HVAC
● Disk Drives
● Appliances 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
DESCRIPTION
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.
