
NCS2200, NCS2200A, NCV2200
http://onsemi.com
9
OPERATING DESCRIPTION
The NCS2200 Series is an industry first subone volt, low
power comparator family. This series is designed for
railtorail input and output performance. These devices
consume only 10
mA of supply current while achieving a
typical propagation delay of 1.1
ms at a 20 mV input
overdrive. Figures
10 and
11 show propagation delay with
various input overdrives. This comparator family is
guaranteed to operate at a low voltage of 0.85 V up to 6.0 V.
This is accomplished by the use of a modified analog CMOS
process that implements depletion MOSFET devices. The
commonmode input voltage range extends 0.1 V beyond
the upper and lower rail without phase inversion or other
adverse effects. This series is available in the SOT235
package. Additionally, the NCS2200 device is available in
the tiny DFN 2x2.2 package and the SC705 package.
NCS2200A is available in UDFN package.
Output Stage
The NCS2200 has a complementary P and N Channel
output stage that has capability of driving a railtorail
output swing with a load ranging up to 5.0 mA. It is designed
such that shootthrough current is minimized while
switching. This feature eliminates the need for bypass
capacitors under most circumstances.
The NCS2202 has an open drain Nchannel output stage
that can be pulled up to 6.0 V (max) with an external resistor.
This facilitates mixed voltage system applications.
Figure 16. NCS2200SNxT1/NCS2200A
Complementary Output Configuration
Figure 17. NCS2202SNxT1 Open Drain
Output Configuration
VCC
VEE
Output
IN (+)
IN ()
VCC
VEE
Output
IN (+)
IN ()
Figure 18. Schmitt Trigger Oscillator
VCC
OUT
IN (+)
IN ()
Rx
Cx
NCS
2200
VO
R2
R1
f + 1T +
1
2.2 RxCx
The oscillation frequency can be programmed as follows: