Texas Instruments LM20
The LM20 is a precision analog output CMOS integrated-circuit temperature sensor that operates over −55°C to 130°C. The power supply operating range is 2.4 V to 5.5 V. The transfer function of LM20 is predominately linear, yet has a slight predictable parabolic curvature.| Part No. | LM20 |
|---|---|
| Datasheet | LM20 Download |
| Manufacturer |  Texas Instruments |
| Description | DSBGA Temperature Sensor |
| Buy | Stock & Price |
FEATURES
●1 Rated for −55°C to 130°C Range● Available in SC70 and DSBGA Package
● Predictable Curvature Error
● Suitable for Remote
APPLICATIONS
● Accuracy at 30°C ±1.5 to ±4°C (Maximum)● Accuracy at 130°C and −55°C ±2.5 to ±5°C (Maximum)
● Power Supply Voltage Range 2.4 V to 5.5 V
● Current Drain 10 μA (Maximum)
● Nonlinearity ±0.4% (Typical)
● Output Impedance 160 Ω (Maximum)
● Load Regulation 0 μA < IL< 16 μA −2.5 mV (Maximum) 2
APPLICATIONS
● Cellular Phones● Computers
● Power Supply Modules
● Battery Management
● FAX Machines
● Printers
● HVAC
● Disk Drives
● Appliances 3
DESCRIPTION
The accuracy of the LM20 when specified to a parabolic transfer function is ±1.5°C at an ambient temperature of 30°C. The temperature error increases linearly and reaches a maximum of ±2.5°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 extreme remains at 130°C.
