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LM2903D 数据表(PDF) 3 Page - STMicroelectronics

部件名 LM2903D
功能描述  LOW POWER DUAL VOLTAGE COMPARATORS
PDF  9 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

LM2903D 数据表(HTML) 3 Page - STMicroelectronics

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LM2903
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ELECTRICAL CHARACTERISTICS
VCC
+ = 5V, V
cc
- = GND, T
amb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
VIO
Input Offset Voltage 1)
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax.
1.
At output switch point, VO ≈ 1.4V, RS = 0Ω with VCC
+ from 5V to 30V, and over the full input common-mode range (0V to V
CC
+ –1.5V).
17
15
mV
IIO
Input Offset Current
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax.
550
150
nA
IIB
Input Bias Current 2)
Tamb = +25°C
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 no loading charge exists on the reference of input lines
25
250
400
nA
AVD
Large Signal Voltage Gain (Vcc = 15V,RL=15kΩ, Vo=1 to 11V)
25
200
V/mV
ICC
Supply Current (all comparators)
VCC = 5V, no load
VCC = 30V, no load
0.4
1
1
2.5
mA
VICM
Input Common Mode Voltage Range (Vcc= 30V)
3)
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax.
3.
The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the
common-mode voltage range is VCC
+ –1.5V, but either or both inputs can go to +30V without damage.
0
0
VCC
+-1.5
VCC
+-2
V
VID
Differential Input Voltage 4)
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 –0.3V (or 0.3V below the negative power supply, if used)
VCC
+
V
VOL
Low Level Output Voltage (Vid = -1V, Isink = 4mA)
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
250
400
700
mV
IOH
High Level Output Current (VCC =Vo =30V, Vid = 1V)
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
0.1
1
nA
µA
ISINK
Output Sink Current (Vid = -1V,Vo = 1.5V)
616
m
Α
tRE
Small Signal Response Time 5) (RL = 5.1kΩ to VCC
+)
5.
The response time specified is for a 100mV input step with 5mV overdrive.
1.3
µs
tREL
Large Signal Response Time 6)
TTL Input (Vref = +1.4 V, RL=5.1kΩ to VCC
+)
Output Signal at 50% of final value
Output Signal at 95 % of final value
6.
Maximum values are guaranteed by design & evaluation.
500
1
ns
µs



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