EVB90620 Datasheet, PDF (34/39 Pages) Melexis Microelectronic Systems – High precision non-contact temperature measurements

MLX90620
16x4 IR array
Power supply decoupling capacitor is needed as with most integrated circuits. MLX90620 is a
mixed-signal device with sensors, small signal analog part, digital part and I/O circuitry. In order to keep the
noise low power supply switching noise needs to be decoupled. High noise from external circuitry can also
affect noise performance of the device. In many applications a 100nF SMD ceramic capacitor close to the
Vdd and Vss pins would be a good choice. It should be noted that not only the trace to the Vdd pin needs to
be short, but also the one to the Vss pin. Using MLX90620 with short pins improves the effect of the power
supply decoupling.
Check www.melexis.com for most recent application notes about MLX90620.
3001090620
Rev 4.0
Page 34 of 40
Datasheet IR16x4
19 September 2012