Datasheet

© 2006 Microchip Technology Inc. DS21945E-page 59
MCP4021/2/3/4
APPENDIX A: REVISION HISTORY
Revision E (December 2006)
• Added device designators in conditions column to
associate units (MHz) in Bandwidth -3 dB
parameter in AC/DC Characteristics table
• Added device designations in conditions column
for R-INL and R-DNL specifications.
• Added disclaimers to package outline drawings.
Revision D (October 2006)
• Changed the EEPROM write cycle time (T
WC
)
from a maximum of 5 ms to a maximum of 10 ms
(overvoltage and temperature) with a typical of
5ms
• For the 10 kΩ device, the rheostat differential
non-linearity specification at 2.7V was changed
from ±0.5 LSb to ±1.0 LSb
• Figure 2-9 in Section 2.0 “Typical Performance
Curves” was updated with the correct data.
• Added Figure 2-48 for -3 db Bandwidth
information.
• Updated available Development Tools.
• Added disclaimer to package outline drawings.
Revision C (November 2005)
• Enhanced Descriptions
• Reordered Sections
• Added 8-lead MSOP and DFN packages
Revision B (April 2005)
• Updated part numbers in Product Identifcation
Section (PIS)
• Added Appendix A: Revision History
Revision A (April 2005)
• Original Release of this Document