Dear team,
After few testes on LM2903DR rev. A and LM2903DR rev. B ( PCN# 20210318001.1), the device in Rev. A has given some different behavior during the tests.
Is there any electrical differences between Rev. A and Rev. B to justify a different behavior?
Thanks,
Giorgia
Hello Georgia,
Yes. There is a summary on the front page, the major differences being input bias current, supply current and speed.
When operated within datasheet specifications, the two devices should be similar.
The new die tends to be a little more sensitive to noises and glitches, due to the lower typical offset and faster response time.
The easiest way to determine which die is used is to look at the "Chip Country of Origin (21L)" field on the box
or bag packing label. Please ignore the "(2P) Rev:" revision field, as it is not relevant to which version of die is
present, but only to the die revision of the particular die version contained.
If the Chip Country of Origin "(21L) CCO:" field says "USA", then this is the "classic" die.
If the Chip Country of Origin "(21L) CCO:" field says "CHN", then this is the new die.
