SI7022-A20 datasheet(7/25 Pages) SILABS

Part #	SI7022-A20

Description	HUMIDITY/TEMPERATURE SENSOR WITH PWM OUTPUT

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Manufacturer	SILABS [Silicon Laboratories]

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Si7022-A20

Rev. 1.1

7

Figure 3. Temperature Accuracy

Table 5. Temperature Sensor

1.9 ≤ VDD ≤ 3.6 V; TA = –40 to +125 °C unless otherwise noted.

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Operating Range

–40

—

+125

°C

Accuracy

–10 °C< tA < 85 °C

—

±0.3

±0.4

°C

–40 < tA < 125 °C

Figure 3.

Repeatability/Noise

—

0.04

—

°C RMS

Resolution

—

11

—

Bits

Response Time*

τ63%

Unmounted device

—

0.7

—

s

Si7022-EB board

—

5.1

—

Long Term Stability

—

 0.01

—

°C/Yr

*Note: Time to reach 63% of final value in response to a step change in temperature. Actual response time will vary

dependent on system thermal mass and air-flow.

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