LM2903DR Rohm Semiconductor, LM2903DR Datasheet - Page 4
LM2903DR
Manufacturer Part Number
LM2903DR
Description
IC COMPARATOR DUAL 0.8MA 8-SOIC
Manufacturer
Rohm Semiconductor
Series
Trophyr
Type
General Purposer
Specifications of LM2903DR
Number Of Elements
2
Output Type
CMOS, MOS, Open-Collector, TTL
Voltage - Supply
2 V ~ 36 V, ±1 V ~ 18 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (0.154", 3.90mm Width)
Mounting Style
SMD/SMT
Comparator Type
General Purpose
No. Of Comparators
2
Response Time
1.3µs
Ic Output Type
CMOS, MOS, TTL
Output Compatibility
CMOS, MOS, TTL
Supply Current
1mA
Supply Voltage Range
5V To 30V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM2903DRTR
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●Circuit Diagram
●Measurement circuit 1 NULL Method measurement condition
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Input Offset Voltage
Input Offset Current
Input Bias Current
Large Signal
Voltage Gain
-
1.Input offset voltage (VIO)
2.Input offset current (IIO)
3.Input bias current (IIb)
4.Large signal differential voltage gain (AVD)
Calculation
Parameter
IN+
IN-
-
Vio
AV
Iio
Ib
1+
2×
Ri
VF1
VF2
VF3
VF4
VF5
VF6
20×
VF
VF2 -
VF1
(1+
Rf
R i
VF4 -
Log
/Rs
(1+
R f
VF1
OFF OFF
OFF
ON
ON
ON
/ Rs)
Rf
VF3
S1
10×
[V]
VF6 - VF5
/
/ Rs)
[A]
(1+
OFF
ON
ON
ON
[A]
S2
Rf
Fig.1 Circuit Diagram (each Comparator)
/Rs)
ON 5 to 30
ON
ON
ON
[dB]
S3
Vcc
V ICR
15
15
5
5
5
LM393/LM339 family
RS = 50[Ω]
RS = 50[Ω]
4/9
GND
50[kΩ]
0
0
0
0
0
0
-11.4
Ri = 10[kΩ]
Ri = 10[kΩ]
Fig.2 Measurement Circuit1 (each Comparator)
-1.4
-1.4
-1.4
-1.4
-1.4
EK
S1
S2
VICR
0
0
0
0
0
0
Vcc
GND
DUT
5 to 30
Vcc
15
15
LM2903/LM2901 family
5
5
5
V RL
RL
S3
GND
0.1[μF]
50[kΩ]
0
0
0
0
0
0
Rf
Vcc,GND,EK,VICR Unit:[V]
RK
EK
1000[pF]
500[kΩ]
-11.4
-1.4
-1.4
-1.4
-1.4
-1.4
EK
500[kΩ]
RK
Vcc
OUT
GND
VICR
Technical Note
2010.04 - Rev.A
0
0
0
0
0
0
NULL
0.1[μF]
Calculation
+15[V ]
-15[V ]
1
2
3
4
V
V F