ncx2220 NXP Semiconductors, ncx2220 Datasheet - Page 9

• Manufacturer Part Number: ncx2220
• Description: Low Voltage Comparator
• Manufacturer: NXP Semiconductors

NXP Semiconductors
13. Application information
NCX2220
Product data sheet
13.1 Operating description
13.2 Output stage
The NCX2220 is a dual low voltage low power comparator. This device is designed for
rail-to-rail input and output performance. This device consumes only 5 μA per comparator
of supply current while achieving a typical propagation delay of 0.8 μs at a 20 mV input
overdrive. This comparator is guaranteed to operate at a low voltage of 1.3 V up to 5.5 V.
The common-mode input voltage range extends 0.1 V beyond the upper and lower rail
without phase inversion or other adverse effects. This device has a typical internal
hysteresis of 9.0 mV. This allows for greater noise immunity and clean output switching.
The NCX2220 has a complementary P and N Channel output stage that has capability of
driving a rail-to-rail output swing with a load ranging up to 5.0 mA. It is designed such that
shoot-through current is minimized while switching. This feature eliminates the need for
bypass capacitors under most circumstances. See
Fig 14. NCX2220 complementary output configuration (one comparator)
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 5 April 2011
IN+
IN-
V
V
CC
EE
Figure 14
001aan904
output
Low voltage comparator
NCX2220
© NXP B.V. 2011. All rights reserved.
9 of 19