EVB90601 Melexis Inc, EVB90601 Datasheet - Page 36

• Manufacturer Part Number: EVB90601
• Description: EVALUATION BOARD MLX90601 IR MOD
• Manufacturer: Melexis Inc

Specifications of EVB90601

• Rohs Status: RoHS non-compliant

For lower volume OEMs, Melexis can provide assistance for customer installation and configuration of
optical assemblies.
Notes:
390129060101
Rev 005
1. Please note that the “Minimum Resolution” of the MLX90601 is affected as the FOV is made
2. For high temperature applications, the FOV can be made very narrow using only apertures. High
3. Aperture, and thus FOV, spot geometry does not have to be “round”. The target spot area can be
4. The engineering trick, in adding any optical assembly, is to make sure that the entire optical
narrow by apertures. This is due to the reduced amount of energy entering the detector with the
limits of the amplifiers inside the MLX90313 chip. The resolution can be improved for narrow
FOVs by adding “focusing” optical assemblies. Please contact Melexis for OEM design
assistance on this topic. Focusing optics should be used only when aperture optics are truly
inadequate for a desired application. Focusing optics add complexity, and additional engineering
and parts costs.
temperature targets emit substantial IR energy. The relative high amount of IR energy supplies
plenty of energy to drive the thermopile detector. For example, just using apertures to make a
FOV of 2.9 degrees full angle, on a 500 C target can deliver approx. 0.5 deg C resolution with the
MLX90601. An FOV of 2.9 degrees full angle is a 20:1 Distance to Spot size ratio (distance of 1
meter, spot size of 5 cm). That is a fairly sharp FOV. Please contact Melexis for further OEM
design assistance, if necessary.
made square, rectangular, wide, thin, etc. Much of this can be done with simple apertures to
achieve design goals. Please contact Melexis for assistance in this area.
assembly remains isothermal (one temperature, no gradients from front to back) in the application
that is intended. In applications where the ambient can change quickly, or an operator can touch
the assembly, it is best to insulate the metal heat sink sufficiently to overcome any normal
potential thermal upsets. Please contact Melexis IR Sales for assistance if needed.
Page 36
EVB90601 Configuration Board
User Manual
Jan-04