LM239 STMicroelectronics, LM239 Datasheet - Page 6

• 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)

Electrical characteristics
Table 3.
1. At output switch point, V
2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant,
3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V.
4. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the
5. The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals, 300 ns can be
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Symbol
trel
independent of the state of the output, so no loading charge exists on the reference of input lines.
The upper end of the common-mode voltage range is V
damage.
common-mode range, the comparator will provide a proper output state. The low input voltage state must not be less than
-0.3 V (or 0.3 V below the negative power supply, if used).
obtained.
Large signal response time
R
V
(ref)
Electrical characteristics at V
(unless otherwise specified) (continued)
L
= 5.1 kΩ connected to V
= +1.4 V
o
Parameter
≈ 1.4 V, V
CC
+
CC
from 5 V to 30 V, and over the full common-mode range (0 V to V
+
, e
l
= TTL,
Doc ID 2159 Rev 3
CC
+
CC
= +5 V, V
+
Min.
-1.5 V, but either or both inputs can go to +30 V without
LM139A - LM239A
LM339A
Typ.
300
CC
-
= GND, T
Max.
amb
= +25° C
Min
LM139 - LM239
LM139, LM239, LM339
Typ.
300
LM339
CC
Max.
+
-1.5 V).
Unit
ns