LM2903
Electrical characteristics
4
Table 3.
Symbol
V
io
I
io
I
ib
A
vd
Electrical characteristics
V
CC+
= 5 V, V
CC-
= GND, T
amb
= 25°C (unless otherwise specified)
Parameter
Input offset voltage
(1)
T
min
≤
T
amb
≤
T
max
Input offset current
T
min
≤
T
amb
≤
T
max
Input bias current
(2)
T
min
≤
T
amb
≤
T
max
Large signal voltage gain
,
V
CC
= 15 V, R
L
= 15 kΩ V
o
= 1 to 11 V
Supply current (all comparators)
V
CC
= 5 V, no load
V
CC
= 30 V, no load
Differential input voltage
(3)
Low level output voltage (V
id
= -1 V, I
sink
= 4 mA)
T
min
≤
T
amb
≤
T
max
High level output current (V
CC
=V
o
= 30 V, V
id
= 1 V)
T
min
≤
T
amb
≤
T
max
Output sink current (V
id
= -1 V, V
o
= 1.5 V)
Small signal response time
(4)
(R
L
= 5.1 kΩ to V
CC+
)
Large signal response time
(5)
TTL input (V
ref
= +1.4 V, R
L
= 5.1 kΩ to V
CC+
)
Output signal at 50 % of final value
Output signal at 95 % of final value
6
250
0.1
1
16
1.3
25
Min.
Typ.
1
5
25
Max.
7
15
50
150
nA
250
400
V/mV
Unit
mV
200
I
CC
V
id
V
OL
I
OH
I
sink
t
res
0.4
1
1
2.5
V
CC+
400
700
mA
V
mV
nA
µA
mA
µs
t
rel
500
1
ns
µs
1.
At output switch point, V
O
≈
1.4 V, R
S
= 0
Ω
with V
CC+
from 5 V to 30 V, and over the full input 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 provides 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.
5. Maximum values are guaranteed by design and evaluation.
Doc ID 2470 Rev 10
5/18
STMICROELECTRONICS [ STMICROELECTRONICS ]
