DATASHEET

SMT172

last update

maart 20, 2017

reference

V14

page

5

Package induced error

When applying high stress package materials, extra errors will occur and therefore system designers

should be aware of this effect. The TO

-18 package has the minimum package induced errors. All other

packages can have a slightly bigger error on top of the error in the specifications but based on the recent

measurements on the plastic versions TO92, SOIC, SOT223 and TO220 the error will be less than

±0.35°C (

-10°C to 100°C) and ±1°C over the temperature range of -45°C to 130°C.

Long

-term drift

This drift strongly depends on the operating condition. The measured hysteresis in a thermal cycle (TO

-18

packaged samples) is less than ±0.02°C over the whole temperature range. Even at extreme condition

(TO

-18 samples heated up to 200°C for 48 hours), the drift is still less than ±0.05°C over the whole

temperature range (

-45°C to 130°C). At room temperature (22ºC), the output drift is less than 5.8mK over

365 days.

Typical Performance Characteristics

Normalized Error vs. Supply Voltage

Supply Current vs. Temperature

Maximum Error Limit

Maximum Error Limit

SMT172

SMT172