NCS2200, NCS2200A, NCV2200, NCS2202A

http://onsemi.com

9

OPERATING DESCRIPTION

The NCS2200 Series is an industry first sub−one volt, low

power comparator family. This series is designed for

rail−to−rail 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

common−mode 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 SOT−23−5

package. Additionally, the NCS2200 device is available in

the tiny DFN 2x2.2 package and the SC70−5 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 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.

The NCS2202 has an open drain N−channel 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

Output

IN (+)

IN (−)

Output

IN (+)

IN (−)

Figure 18. Schmitt Trigger Oscillator

OUT

IN (+)

IN (−)

NCS

2200

f + 1T +

1

2.2 RxCx

The oscillation frequency can be programmed as follows: