LM239 STMicroelectronics, LM239 Datasheet - Page 8

• Manufacturer Part Number: LM239
• Description: Low power quad voltage comparator
• Manufacturer: STMicroelectronics

Specifications of LM239

• Wide Single Supply Voltage Range Or Dual Supplies For All Devices: +2 to +36 V or ±1 V to ±18 V
• Low Input Bias Current: 25 nA typ
• Low Input Offset Current: ±5 nA typ
• Low Input Offset Voltage: ±1 mV typ
• Low Output Saturation Voltage: 250 mV typ;(ISINK = 4 mA)

Typical applications
5
8/19
Figure 8.
Figure 10. Driving TTL
Figure 12. Low frequency op amp
+V
-V
+V
-V
(ref)
(ref)
(ref)
(ref)
(e
~
o
Typical applications
= 0 V for e
Basic comparator
1 kΩ
e
l
LM139
1/ 4
LM139
l
LM139
1/ 4
= 0 V)
100 k
1/4
A
V
Ω
= 100
15 kΩ
5 V
15 kΩ
0.5 μF
V
5 V
CC
10 kΩ
= 5 V
2N 2222
&
&
e
V
o
O
Doc ID 2159 Rev 3
Figure 9.
Figure 11. Low frequency op amp
Figure 13. Transducer amplifier
+V
-V
(ref)
(ref)
Magnetic pick-up
Driving CMOS
~
1 kΩ
e
l
LM139
1/ 4
10 kΩ
LM139
1/4
A
100 kΩ
V
10 kΩ
= 100
LM139
LM139, LM239, LM339
5 V
1/ 4
20 MΩ
5 V
100 kΩ
5 V
3 kΩ
15 kΩ
0.5 μF
e
o
&
e
o