AHT25 datasheet(3/14 Pages) ETC

3 / 14 page

ATH25 Data Sheet

www.aosong.com

Version:V1.0 —— May 2021

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Parameter

Condition

Min

Typical

Value

Max

Unit

Resolution

Typical

0.01

°C

Accuracy

Typical

±0.3

°C

Tolerance1

Max

See Figure 3

°C

Repeatable

±0.1

°C

Hysteresis

±0.1

°C

Response Time2



63%

°C

Scope of Work

Extended3

-40

°C

Prolonged Drift4

Normal

<0.1

°C /yr

Table 3. Temperature characteristics table

Figure 3. Typical and maximum temperature errors

Package information

Sensor model

Package

Quantity

ATH25

Tape packaging

2000Pcs/Roll(MAX)

Table 4. Package information

1.This accuracy is based on the sensor's test accuracy at a

supply voltage of 3.3V at 25°C during the factory inspection.

This value does not include hysteresis and non- linearity and

applies only to non-condensing conditions.

2.The time required to reach the ﬁrst-order response of 63% at

25°C and 1 m/s airﬂow.

3.Normal operating humidity range: 0-80%RH. There will be

deviation in the sensor reading (after 60 hours in 90%RH

humidity, drift >3%RH) beyond this range. The working

condition is limited to -40°C -80°C.

4.If there are volatile solvents, tapes with pungent odors,

adhesives, and packaging materials around the sensor, the

readings may shift. For details, please refer to the relevant

documents.

5.The minimum and maximum values for supply current and

power consumption are based on VCC = 3.3V and T < 60°C.

6.The response time depends on the thermal conductivity of

the substrate of the sensor.

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