LM339, LM339A, LM239, LM239A, LM2901, M2901V, MC3302
Figure 2. Inverting Comparator
with Hystersis
+ VCC
R3
10 k
Vin
+ VCC
Rref
–
+
R2
R1
1.0 M
Vref
Figure 3. Noninverting Comparator
with Hysteresis
+ VCC
10 k
VO
Rref
Vref
R1
–
R2
10 k
R3
1.0 M
R2
[VO(max) – VO(min)]
Vref =
VCC R1
Rref + R1
+
VO
10 k
Vref
10k
Vin
[
R3
]
R1 / / Rref / / R2
VCC R1
Rref + R1
R1 / / Rref
R1/ / Rref + R2
Rref / / R1
R2
[
R1 / / Rref
VH =
Amount of Hysteresis VH
R2
[(V
–V
]
VH =
R2 + R3 O(max) O(min)
Typical Characteristics
(VCC = 15 Vdc, TA = +25°C (each comparator) unless otherwise noted.)
Figure 4. Normalized Input Offset Voltage
1.40
NORMALIZED OFFSET VOLTAGE
I IB, INPUT BIAS CURRENT (nA)
48
42
36
30
24
18
12
6.0
0
–50
–25
0
25
50
75
TA, AMBIENT TEMPERATURE (°C)
100
125
0
4.0
8.0
12
16
20
24
VCC, POWER SUPPLY VOLTAGE (Vdc)
28
32
TA = +125°C
TA = –55° C
TA = +25° C
Figure 5. Input Bias Current
1.20
1.00
0.80
0.60
Figure 6. Output Sink Current versus
Output Saturation Voltage
8.0
IO, OUTPUT CURRENT (mA)
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
0
100
200
300
400
500
Vsat, OUTPUT SATURATION VOLTAGE (mV)
TA = –55° C
TA = +125°C
TA = +25° C
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MOTOROLA ANALOG IC DEVICE DATA
3
ETC [ ETC ]
