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PDF LM239A Data sheet ( Hoja de datos )
| Número de pieza | LM239A | |
| Descripción | LOWPOWER QUAD VOLTAGE COMPARATORS | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LM239A (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
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LM139, LM239, LM339
Low-power quad voltage comparators
D
SO14
(plastic micropackage)
P
TSSOP14
(thin shrink small outline package)
Q
QFN16 3x3
(plastic micropackage)
Datasheet - production data
Features
• Wide single supply voltage range or dual
supplies for all devices: +2 to +36 V or ±1 V to
±18 V
• Very low supply current (1.1 mA) independent
of supply voltage
• Low input bias current: 25 nA typ
• Low input offset current: ±5 nA typ
• Low input offset voltage: ±1 mV typ
• Input common-mode voltage range includes
ground
• Low output saturation voltage: 250 mV typ;
(ISINK = 4 mA)
• Differential input voltage range equal to the
supply voltage
• TTL, DTL, ECL, MOS, CMOS compatible
outputs
Description
This family of devices consists of four
independent precision-voltage comparators with
an offset voltage specification as low as 2 mV
maximum for LM339A, LM239A, and LM139A.
Each comparator has been designed specifically
to operate from a single power supply over a wide
range of voltages. Operation from split power
supplies is also possible.
These comparators also have a unique
characteristic in that the input common mode
voltage range includes ground even though
operated from a single power supply voltage.
August 2014
This is information on a product in full production.
DocID2159 Rev 4
1/19
www.st.com
1 page  
LM139, LM239, LM339
Absolute maximum ratings and operating conditions
Symbol
Table 2. Operating conditions (Tamb = 25 °C)
Parameter
Value
VCC
VICM
Toper
Supply voltage
Common mode input voltage range
Operating free-air temperature range
– LM139, LM139A
– LM239, LM239A
– LM339, LM339A
2 to 32
±1 to ±16
0 to (VCC+ - 1.5)
-55, +125
-40, +105
0, +70
Unit
V
V
°C
DocID2159 Rev 4
5/19
19
5 Page 
LM139, LM239, LM339
Figure 18. Limit comparator
V
CC
(12 V)
V(ref)
high
2RS
RS
10 kΩ
1/ 4
LM139
Lamp
eI ~
V(ref)
low
2RS
1/ 4
LM139
2N 2222
Figure 20. Zero crossing detector
15 V
eI ~
1/4
LM139
15 V
5.1 kΩ
eo
Typical applications
Figure 19. Crystal-controlled oscillator
VCC = 15 V
200 kΩ
0.1 μF
100 kΩ
1/ 4
LM139
2 kΩ
VCC
0
eo
200 kΩ
f = 100 kHz
Figure 21. Comparator with a negative
reference
15 V
eI ~
1/ 4
LM139
5V
15 V
5.1 kΩ
eo
DocID2159 Rev 4
11/19
19
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet LM239A.PDF ] | |
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