SI7013-A20-YM0 View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
MFG CO.
SI7013-A20-YM0 Datasheet PDF : 45 Pages
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Si7013-A20
2. Typical Application Circuits
The primary function of the Si7013 is to measure relative humidity and temperature. Figure 4 demonstrates the
typical application circuit to achieve these functions; pins 6 and 7 are not required and should be left unconnected.
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N Figure 4. Typical Application Circuit for Relative Humidity and Temperature Measurement
r The application circuit shown in Figure 5 uses the auxiliary analog pins for measuring a remote temperature using
a thermistor.
t Recommended fo Figure 5. Typical Application Circuit for Thermistor Interface with AD0 = 1
oThe voltage connected at VDDA serves as the reference voltage for both the Analog-to-Digital converter and the
Nresistor string. Therefore, the ADC must be configured to take its reference from VDDA. The top of the resistor
string is connected to the VOUT pin, allowing the resistor string to be powered down, saving power between
temperature conversions. In this mode of operation, the analog inputs are buffered and present an input
impedance of > 100 k
12
Rev. 1.4
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