LM339, LM339A, LM239, LM239A, LM2901, M2901V, MC3302

http://onsemi.com

3

Figure 2. Inverting Comparator

with Hystersis

Figure 3. Noninverting Comparator

with Hysteresis

Figure 4. Normalized Input Offset Voltage

Figure 5. Input Bias Current

Figure 6. Output Sink Current versus

Output Saturation Voltage

Typical Characteristics

(VCC = 15 Vdc, TA = +25°C (each comparator) unless otherwise noted.)

Vref =

VCC R1

Rref + R1

R2

[ R1 / / Rref

Amount of Hysteresis VH

VH =

R2

R2 + R3

[(VO(max) – VO(min)]

Vref [

VCC R1

Rref + R1

R3

] R1 / / Rref / / R2

VH =

R1 / / Rref

R1/ / Rref + R2

[VO(max) – VO(min)]

R2

Rref / / R1

TA, AMBIENT TEMPERATURE (°C)

VCC, POWER SUPPLY VOLTAGE (Vdc)

Vsat, OUTPUT SATURATION VOLTAGE (mV)

+ VCC

Vin

Vref

+ VCC

+ VCC

Vin

Vref

Rref

Rref

–

+

–

+

VO

VO

10k

R1

R2

R3

10 k

1.0 M

R3

R2

1.0 M

10 k

R1

1.40

1.20

1.00

0.80

0.60

–50

–25

0

25

50

75

100

125

48

42

36

30

24

18

12

6.0

0

0

4.0

8.0

12

16

20

24

28

32

TA = –55° C

TA = +25° C

TA = +125°C

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0

100

200

300

400

500

10 k

TA = +25° C

TA = –55° C

TA = +125°C

10 k

0