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LM2901Q4T Datasheet(PDF) 4 Page - STMicroelectronics

Part # LM2901Q4T
Description  Low-power quad voltage comparator
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LM2901Q4T Datasheet(HTML) 4 Page - STMicroelectronics

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Electrical characteristics
LM2901
4/17
Doc ID 2468 Rev 7
3
Electrical characteristics
Table 3.
Electrical characteristics at VCC
+ = 5 V, V
CC
- = GND, T
amb = 25° C
(unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Vio
Input offset voltage (1)
Tmin ≤ Tamb ≤ Tmax
1.
At output switch point, VO ≈ 1.4 V, RS = 0 with VCC
+ from 5 V to 30 V, and over the full input common-
mode range (0 V to VCC
+ –1.5 V).
17
15
mV
Iio
Input offset current
Tmin ≤ Tamb ≤ Tmax
550
150
nA
Iib
Input bias current (II
+ or I
I
-) (2)
Tmin ≤ Tamb ≤ Tmax
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 there is no loading charge on the reference of input
lines.
25
250
400
nA
Avd
Large signal voltage gain
(VCC = 15 V, RL =15kΩ, Vo = 1 to 11 V)
25
200
V/mV
ICC
Supply current (all comparators)
VCC = +5 V, no load
VCC = +30 V, no load
1.1
1.3
2
2.5
mA
Vid
Differential input voltage(3)
3.
The response time specified is for a 100 mV input step with 5 mV overdrive.
VCC
+
V
VOL
Low level output voltage
Vid = -1V, Isink = 4 mA
Tmin ≤ Tamb ≤ Tmax
250
400
700
mV
IOH
High level output current
(VCC =Vo = 30 V, Vid = 1 V)
Tmin ≤ Tamb ≤ Tmax
0.1
1
nA
µA
Isink
Output sink current (Vid = -1 V,Vo = 1.5 V)
6
16
mA
tres
Small signal response time(4)
(RL = 5.1 kΩ connected to VCC
+)
4.
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).
1.3
µs
trel
Large signal response time(5)
TTL input (Vref = +1.4 V, RL =5.1 kΩ to
VCC
+)
Output signal at 50% of final value
Output signal at 95% of final value
5.
Maximum values are guaranteed by design.
500
1
ns
µs


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