NJM2903C / NJM2903CA
SINGLE-SUPPLY DUAL COMPARATOR
■ GENERAL DESCRIPTION
The NJM2903C / NJM2903CA consist of two independent voltage
comparators that are designed specifically to operate from a single power
supply over a wide range of voltages. Operation from split power supplies is
also possible and the low power supply current drain is independent of the
magnitude of the power supply voltage.
The NJM2903C / NJM2903CA has a unique characteristic: the input
common-mode voltage range includes ground, even though operated from
a single power supply voltage.
Application areas include limit comparators, simple analog-to-digital
converters; pulse, square-wave and time delay generators; wide range
V
CO
; MOS clock timers; multivibrators and high voltage digital logic gates.
The NJM2903C / NJM2903CA were designed to directly interface with TTL
and MOS. When operated from both plus and minus power supplies, the
NJM2903C / NJM2903CA will directly interface with MOS logic where their
low power drain is a distinct advantage over standard comparators
■ FEATURES
● Operating Voltage
● Single Supply Operation
● Open Collector Output
● Package Outline
● Bipolar Technology
● Internal ESD protection
Human body model (HBM)
±2000V
typ.
●Wide temperature range -40℃
to
+125℃
●Input Offset Voltage Grade
NJM2903C(Normal-Grade)
NJM2903CA (A-Grade)
5mV max.
2mV max.
■ PIN CONFIGURATION
(Top View)
(Top View)
14 13 12
■ PACKAGE OUTLINE
NJM2903CG
NJM2903CAG
(SOP8)
NJM2903CM
NJM2903CAM
(DMP8)
NJM2903CRB1
NJM2903CARB1
(MSOP8(TVSP8)
NJM2903CV
NJM2903CAV
(SSOP8)
NJM2903CMD7
(EQFN14-D7)
+2V to +36V
SOP8,DMP8,SSOP8 ,EQFN14-D7
MSOP8 (TVSP8)
*MEET JEDEC MO-187-DA / THIN TYPE
*
NJM2903CMD7 don’t have a A version.
(Bottom View)
12 13 14
11
10
9
8
1
2
3
4
A
B
8
7
6
5
PIN FUNCTION
1.A OUTPUT
2.A - INPUT
3.A + INPUT
4.V
-
5.B + INPUT
6.B - INPUT
7.B OUTPUT
8.V
+
1
2
3
4
5
6
7
11
10
PAD
1
2
3
4
7
6
5
9
8
NJM2903CG / NJM2903CAG
NJM2903CM / NJM2903CAM
NJM2903CRB1 / NJM2903CARB1
NJM2903CV / NJM2903CAV
NJM2903CMD7 (Note1, 2, 3 )
(Note1) The NF pin, NC pin and The PAD have to be wired as short as possible to
connect with a V
−
pin.
(Note2) The NF pin and The PAD are electronically connected to the backside of the
die. But, there cannot be used as V
-
pin.
(Note3) The NC pin is not internally connected.
PIN FUNCTION
1. NF(No Function)
2. A –INPUT
3. A +INPUT
4. NF(No Function)
5. NC
6. V
-
7. NC
8. NF(No Function)
9. B +INPUT
10. B –INPUT
11. NF(No Function)
12. B OUTPUT
13. V
+
14. A OUTPUT
■ EQUIVALENT CIRCUIT
( 1/2 Shown)
Ver.11
-1-
NJM2903C / NJM2903CA
■ ABSOLUTE MAXIMUM RATINGS
( Ta=25˚C )
PARAMETER
Supply Voltage
Differential Input Voltage (Note4)
Input Voltage (Note5)
Output Terminal Input Voltage (Note6)
SYMBOL
V -V
V
ID
V
IN
V
O
SOP
DMP
MSOP
SSOP
EQFN
:
:
:
:
:
-
-
+
-
RATINGS
+36
±36
V -0.3 to V +36
V -0.3 to V +36
690 (Note7) 1000 (Note8)
470 (Note7) 600 (Note8)
510 (Note7) 680 (Note8)
430 (Note7) 540 (Note8)
440 (Note7) 770 (Note8)
-40 to +125
-65 to +150
-
-
UNIT
V
V
V
V
Power Dissipation
P
D
mW
Operating Temperature Range
Storage Temperature Range
T
opr
T
stg
˚C
˚C
(Note4) Differential voltage is the voltage difference between +INPUT and -INPUT.
+
(Note5) Input voltage is the voltage should be allowed to apply to the input terminal independent of the magnitude of V
+
(Note6) Output voltage is the voltage should be allowed to apply to the output terminal independent of the magnitude of V .
(Note7) EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 2layers, FR-4) mounting
(Note8) EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 4layers, FR-4) mounting
■ ELECTRICAL CHARACTERISTICS
PARAMETER
Input Offset Voltage
Input Offset Current
Input Bias Current
Large Signal Voltage Gain
Common Mode Input Voltage Range
Supply Current (all comparators)
Low-level Output Voltage
Output Leakage Current
Output Sink Current
Response Time
Large Signal Response Time
SYMBOL
V
IO
I
IO
I
B
A
V
V
ICM
I
SUPPLY
V
OL
I
LEAK
I
SINK
tre
trel
no load
V = +30V, no load
V
IN+
= 0V, V
IN-
= 1V, I
SINK
= 4mA
V = V
O
= 30V, V
IN+
= 1V, V
IN-
= 0V
V
IN+
= 0V, V
IN-
= 1V, V
O
= 1.5V
R
L
= 5.1kΩ to V
+
+
+
+
( V =5V,V =0V,Ta=25˚C unless otherwise noted.)
TEST CONDITION
R
S
=0Ω, V
O
=1.4V
R
S
=0Ω, V
O
=1.4V,NJM2903CA
-
-
V = 15V, R
L
=15kΩ, V
O
= 1V to 11V
+
+
-
MIN.
-
TYP.
0.5
0.5
0.5
20
106
-
0.45
0.6
80
-
16
1.3
250
MAX.
5
2
50
250
-
3.5
1
2.5
400
1
-
-
-
UNIT
mV
nA
nA
dB
V
mA
mV
uA
mA
μs
ns
94
0
-
-
-
-
6
-
-
R
L
= 5.1kΩ to V ,
Vref = +1.4V, TTL input
-2-
Ver.11
NJM2903C / NJM2903CA
■ TYPICAL CHARACTERISTICS
Supply Current vs. Supply Voltage
1.0
V
-
=0V, V
COM
=0V, V
O
=open
Supply Current vs. Temperature
1.4
1.2
V
-
=0V, V
IN
+=0V, V
IN
- =0V, R
L
=OPEN
0.8
Ta=-40ºC
Supply Current [mA]
Supply Current [mA]
1.0
0.8
0.6
0.4
0.2
V
+
=2V
V
+
=30V
0.6
0.4
Ta=25ºC
Ta=125ºC
V
+
=5V
0.2
0.0
0
5
10 15 20 25 30
Supply Voltage V
+
[V]
35
40
0.0
-50
-25
0
25 50 75 100 125 150
Ambient Temperature [ºC]
Input Offset Voltage vs. Supply Voltage
5
4
V
-
=0V, V
COM
=1.4V, V
OUT
=1.4V, R
L
=15kΩ
Input Offset Voltage vs. Temperature
5
4
V
-
=0V, V
COM
=1.4V, V
OUT
=1.4V, R
L
=15kΩ
Input Offset Voltage [mV]
2
1
0
-1
-2
-3
-4
-5
0
Ta=125ºC
Ta=25ºC
Ta=-40ºC
Input Offset Voltage [mV]
3
3
2
1
0
-1
-2
-3
-4
-5
V
+
=2V
V
+
=5V
V
+
=30V
10
20
30
+
[V]
Supply Voltage V
40
-75 -50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
Input Offset Voltage
vs. Common-Mode Input Voltage
5
4
Input Offset Voltage [mV]
Input Bias Current [nA]
3
2
1
0
-1
-2
-3
-4
-5
-5
0
5
10
15
20
25
Common-Mode Input Voltage [V]
30
-150
Ta=25°C
Ta=125°C
Ta=-40°C
V
+
=30V, V
-
=0V,
Input Bias Current vs. Temperature
150
100
50
0
-50
-100
V
+
=2V
V
-
=0V, V
COM
=0V
V
+
=30V
V
+
=5V
-75 -50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
Ver.11
-3-
NJM2903C / NJM2903CA
■ TYPICAL CHARACTERISTICS
Low-level Output Voltage vs. Supply Voltage
300
Low-level Output Voltage [mV]
V
-
=0V, Ta=25ºC
Low-level Output Voltage vs. Output Sink Current
10
V
+
=5V, V
-
=0V, V
IN
+=0V, V
IN
-=1V
250
I
SINK
=10mA
Low-level Output Voltage [V]
Ta=-40ºC
1
Ta=25ºC
Ta=125ºC
200
150
I
SINK
=5mA
0.1
100
50
I
SINK
=3mA
0.01
I
SINK
=2mA
0
0
5
10 15 20 25 30
Supply Voltage V
+
[V]
35
40
0.001
0.1
1
10
Output Sink Current [mA]
100
Low-level Output Voltage vs. Temperature
400
Low-level Output Voltage [mV]
V
+
=5V, V
-
=0V, V
IN
+=0V, V
IN
-=1V, I
OUT
=4mA
Open-Loop Voltage Gain vs. Temperature
140
Open-Loop Voltage Gain [dB]
120
100
80
60
40
20
0
V
+
=15V, V
-
=0V, V
OUT
=1V to 11V
300
200
100
0
-75 -50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
-75 -50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
Response Time vs. Temperature
Output Signal Rising/Falling Time [ns]
Output Signal Rising/Falling Time
vs. Temperature
600
500
400
300
200
Fall
V
+
=5V, V
-
=0V, V
IN+
=0V, V
IN-
=200mV
PP
, ov=100mV, R
L
=5.1kΩ
1000
V
+
=5V, V
-
=0V, V
IN
+=0V, V
IN
-=200mV
PP
, ov=100mV, R
L
=5.1kΩ
800
Response Time [ns]
600
Rise
Rise
400
200
Fall
100
0
-75 -50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
0
-75 -50 -25 0 25 50 75 100 125 150
Ambient Temperature [ºC]
-4-
Ver.11
NJM2903C / NJM2903CA
■ TYPICAL CHARACTERISTICS
Response Time
1
0.9
0.8
0.7
Input Voltage [V]
V
+
=5V, V
-
=0V, R
L
=5.1kΩ, V
REF
=0V, C
L
=0pF, Ta=25ºC
Response Time
6
5
4
Output Voltage [V]
1
0.9
0.8
0.7
Input Voltage [V]
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
V
+
=5V, V
-
=0V, R
L
=5.1kΩ, V
REF
=0V, C
L
=0pF, Ta=25ºC
6
5
4
Output
ov=5mV
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
0.25μs/div
Input
ov=20mV
ov=100mV
2
1
0
-1
-2
-3
-4
-5
-6
ov=20mV
2
1
0
ov=100mV
-1
-2
-3
-4
-5
-6
Input
0.25μs/div
Response Time
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
V
+
=5V, V
-
=0V, R
L
=5.1kΩ, V
REF
=1.4V, Ta=25ºC
Response Time
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
12
11
10
9
8
7
6
5
4
3
2
1
0
-1
V
+
=5V, V
-
=0V, R
L
=5.1kΩ, V
REF
=1.4V, Ta=25ºC
C
L
=0
P
F
C
L
=47
P
F
Output
C
L
=100
P
F
Output
C
L
=47
P
F
C
L
=100
P
F
Input
Input
0.25μs/div
0.25μs/div
■ TYPICAL APPLICATIONS
Comparator With Hysteresis
V
＋
V
＋
Pulse Generator
100k
V
＋
15k
Output Strobing Circuit
V
＋
6.2k
OUTPUT
V
ref
3k
OUTPUT
51k
INPUT
10k
10M
51k
100k
OUTPUT
strobe input
Ver.11
Output Voltage [V]
Output Voltage [V]
C
L
=0
P
F
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
-7
Input Voltage [V]
Input Voltage [V]
Output Voltage [V]
3
Output
ov=5mV
3
-5-
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