SI7013-A20-YM1R 查看數據表（PDF） - Silicon Laboratories

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SI7013-A20-YM1R

I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

Silicon Laboratories 

Si7013-A20

Table 4. Humidity Sensor

1.9 ≤ VDD ≤ 3.6 V; TA = 30 °C; default conversion time unless otherwise noted.

Parameter

Operating Range1

Accuracy2, 3

Repeatability-Noise

Symbol

Test Condition

Non-condensing

0 – 80% RH

80 – 100% RH

12-bit resolution

11-bit resolution

10-bit resolution

8-bit resolution

Min Typ Max

0

— 100

s —

±2

±3

n See Figure 2.

ig — 0.025 —

— 0.05 —

s —

0.1

—

De —

0.2

—

Unit

%RH

%RH

%RH

%RH RMS

%RH RMS

%RH RMS

%RH RMS

Response Time4

1 m/s airflow, with cover

—

18

—

τ63%

1 m/s airflow, without cover

—

17

—

S

w Drift vs. Temperature

— 0.05 —

%RH/°C

e Hysteresis

Long Term Stability3

—

±1

—

— < 0.25 —

%RH

%RH/yr

N Notes:

r 1. Recommended humidity operating range is 20% to 80% RH (non-condensing) over –10 °C to 60 °C. Prolonged

operation beyond these ranges may result in a shift of sensor reading with slow recovery time.

fo 2. Excludes hysteresis, long term drift, and certain other factors and is applicable to non-condensing environments only.

See Section “4.1. Relative Humidity Sensor Accuracy” for more details.

3. Drift due to aging effects at typical room conditions of 30°C and 30% to 50% RH. May be impacted by dust, vaporized

d solvents or other contaminants, e.g., out-gassing tapes, adhesives, packaging materials, etc. See Section “4.7. Long

Term Drift/Aging”

Not Recommende 4. Response time to a step change in RH. Time for the RH output to change by 63% of the total RH change.

Rev. 1.4

7

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