SI7013-A10-IMR Ver la hoja de datos (PDF) - Silicon Laboratories

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SI7013-A10-IMR

I2C HUMIDITY AND TWO-ZONE TEMPERATURE SENSOR

Silicon Laboratories 

Si7013-A10

The AD0/VOUT pin is a dual function pin. At powerup, it functions as an address select pin and selects the least

significant I2C Figure 5, the AD0/VOUT pin is pulled high, selecting AD0 = 1. In Figure 6, the AD0/VOUT pin is

pulled low selecting AD0 = 0.

1.9 to 3.6V

C2

0.1µF

TH1

10k

NTC

C1

0.1µF

R3

24k

2 AD0/VOUT

6 VINP

8

9

VDDA

VDDD

SCL

10

SDA 1

Si7013

VSNS 5

7 VINN

R4

24k

GNDD GNDA

3

4

R1 R2

10k 10k

SCL

SDA

Figure 6. Typical Application Circuit for Thermistor Interface with AD0 = 0

WR9

5

N

9WR9

9ROWDJH,QSXW

5

N

 9,13

 9,11

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9''$ 9'''

6&/ 

6'$ 

6L

9616 

5 5

N N

6&/

6'$

 $'9287

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Figure 7. Typical Application Circuit for Single Ended 0 to 3 V Measurement

Figure 7 demonstrates a single ended 0 to 3 V input range configuration. The voltage reference is the internal

1.25 V reference. The 1 k and 2 k resistor divider keeps the voltage range to 1.0 V, which is within the

recommended 80% of VREF. Full scale of 32767 counts is 3.75 V.

Rev. 1.0

13

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