Datasheet

Electrical characteristics LM193, LM293, LM393
6/20 Doc ID 2164 Rev 14
4 Electrical characteristics
Table 3. V
CC
+
= +5V, V
CC
-
= 0V, T
amb
= +25 °C (unless otherwise specified)
Symbol Parameter
LM193A - LM293A
LM393A
LM193- LM293
LM393
Unit
Min. Typ. Max. Min Typ. Max.
V
io
Input offset voltage
(1)
T
min
≤ T
amb
≤ T
max
12
4
15
9
mV
I
io
Input offset current
T
min
≤ T
amb
≤ T
max
325
100
350
150
nA
I
ib
Input bias current (I
+
or I
-
)
(2)
T
min
≤ T
amb
≤ T
max
20 100
300
20 250
400
nA
A
vd
Large signal voltage gain
V
CC
= 15 V, R
L
= 15 kΩ, V
o
= 1 V to 11 V
50 200 50 200 V/mV
I
CC
Supply current (all comparators)
V
CC
= +5 V, no load
V
CC
= +30 V, no load
0.45
0.6
1
2.5
0.45
0.6
1
2.5
mA
V
id
Differential input voltage
(3)
V
CC
+
V
CC
+
V
OL
Low level output voltage
V
id
= -1 V, I
sink
= 4 mA
T
min
≤ T
amb
≤ T
max
80 400
700
80 400
700
mV
I
OH
High level output current
V
CC
= V
o
= 30 V, V
id
= 1 V
T
min
≤ T
amb
≤ T
max
0.1
1
0.1
1
nA
μA
I
sink
Output sink current V
id
= 1 V, V
o
= 1.5 V 6 18 6 18 mA
t
re
Response time
(4)
R
L
= 5.1 kΩ connected to V
CC
+
1.3 1.3 μs
t
rel
Large signal response time
R
L
= 5.1 kΩ connected to V
CC
+
e
l
= TTL,V
(ref)
= +1.4 V
300 300 ns
1. At output switch point, V
o
≈ 1.4 V, R
s
= 0 with V
CC
+
from 5 V to 30 V, and over the full common-mode range (0 V to
V
CC
+
-1.5 V).
2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant,
independent of the state of the output, so no loading charge exists on the reference of input lines.
3. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the
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).
4. The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be
obtained.