Serial Bus Traces

Pull-Up Resistors

Supply Bypass

Capacitor

Via to Power or Ground Plane

Via to Internal Layer

Supply Voltage

SCL

GND

ALERT

ADD0

V+

SDA

Ground Plane for

Thermal Coupling

to Heat Source

Heat Source

24

TMP112

SBOS473F – MARCH 2009 – REVISED FEBRUARY 2018

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10 Layout

10.1 Layout Guidelines

Place the power-supply bypass capacitor as close as possible to the supply and ground pins. The recommended

value of this bypass capacitor is 0.01 μF. Additional decoupling capacitance can be added to compensate for

noisy or high-impedance power supplies. Pull up the open-drain output pins (SDA , SCL and ALERT) through 5-

kΩ pullup resistors.

10.2 Layout Example

Figure 20. Layout Example