LM19

LM19 2.4V, 10µA, TO-92 Temperature Sensor January 2003 LM19 2.4V, 10µA, TO-92 Temperature Sensor General Description The LM19 is a precision analog output CMOS integratedcircuit 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. Ther...