PowerWise® Design University

Analog Temperature Sensors

The temperature measured by the LM135 is 375 K. What will be the output voltage seen on this device?
Vout = 1.34 V
Vout = 2.13 V
Vout = 2.82 V
Vout = 3.75 V

If the forward voltage is 25mV, what is the temperature measured when a forward current of 65mA and a saturation current of 5mA are applied?
T = 25 K
T = 52 K
T = 113 K
T = 217 K

What is used to set the sensitivity of a current-output analog temperature sensor?
Single external resistor
Single external capacitor
Adjustable voltage input
Programmable logic

Determine the forward voltage across the diode if the forward current is 20mA, the saturation current is 2mA, and the temperature is 270 K.
VF = 0.05 V
VF = 0.13 V
VF = 0.98 V
VF = 1.23 V