SMT-160-30-92 SMARTEC, SMT-160-30-92 Datasheet - Page 5

• Manufacturer Part Number: SMT-160-30-92
• Description: IC, TEMP SENSOR, 0.005°C, 1.2°C, TO-92-3
• Manufacturer: SMARTEC

Specifications of SMT-160-30-92

• Ic Output Type: Digital
• Sensing Accuracy Range: ± 1.2°C
• Supply Current: 200µA
• Supply Voltage Range: 4.75V To 7.2V
• Sensor Case Style: TO-92
• No. Of Pins: 3
• Termination Type: Through Hole
• Filter Terminals: Through Hole
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SMT16030
Version 7/2005
SMARTEC B.V, Delpratsingel 26
4811 AP Breda, The Netherlands
Total accuracy
The mentioned equation is the nominal one. The maximum deviation from the nominal
equation is defined as total accuracy. With temperatures above 100 °C the accuracy
decreases.
Non linearity
Non-linearity as it applies to the SMT160-30 is the deviation from the best-fit straight line
over the whole temperature range. For the temperature range of -30 °C to +100 °C the non-
linearity is less than 0.2 °C (TO18).
Long-term drift
This drift strongly depends on the operating condition. At room temperature the drift is very
low (< 0.05 °C). However at higher temperatures the drift will be worse, mainly because of
changes in mechanical stress. This drift is partly irreversible and causes non-ideal
repeatability and long-term effects. At temperatures above 100 °C (but in the operating range)
a long-term drift better than 0.1 °C is to be expected.
Noise
The resolution is better than 0.005 °C. The standard deviation of the noise level (measured
over a 20 ms. period) is below this 0.005 °C.
Time constants
The time constant of the sensor is measured under different circumstances.
To compare this with other types of sensors the same kind of measurements were done. The
time constant is defined as the time required to reach 63% of an instantaneous temperature
change.
The figures mentioned below are difficult to measure; an accuracy of around 5 % is a
reasonable estimation. These figures only apply to the sensor built in a TO-18 housing and not
the TO-92, the TO220 nor the naked chip. The values found only depend on the physical
parameters of the measurement setup.
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