NJM2745
QUAD OPERATIONAL AMPLIFIER
■
GENERAL DESCRIPTION
NJM2745
is quad operational amplifier with low voltage
noise 5nV/√Hz(@f=1kHz) with high bandwidth and low
distortion.
These features may be used in audio signal processing
by high-level audio usages such as hi-end car audio,
high-quality TV set and others.
In addition, these also suitable for audio mixer,
studio-recording equipments, broadcasting equipments, and
the usages in various professional sound equipments.
■
FEATURES
●
Low Input Noise Voltage
●
Wide Gain Bandwidth Product
●
Low Distortion
●
Slew Rate
●
Operating Voltage
●
Package Outline
●
Bipolar Technology
■
PIN CONFIGURATION
1
2
3
4
5
6
7
14
■
PACKAGE OUTLINE
NJM2745V
NJM2745M
5nV/
√Hz
typ
15MHz typ
0.0005% typ
5V/µs typ
±2V to ±9.5V
NJM2745M : DMP14
NJM2745V : SSOP14
PIN ASIGNMENT
1. A OUTPUT
2. A -INPUT
3. A +INPUT
4. V+
5. B +INPUT
6. B -INPUT
7. B OUTPUT
8. C OUTPUT
9. C -INPUT
10. C +INPUT
11. V-
12. D +INPUT
13. D -INPUT
14. D OUTPUT
- +
A
+ -
D
13
12
11
10
- +
B
+ -
C
9
8
■
EQUIVALENT CIRCUIT
( 1/4 Shown )
Ver.2012-07-24
-1-
NJM2745
■
ABSOLUTE MAXIMUM RATINGS
(Ta=25
o
C)
PARAMETER
Supply Voltage
Common Mode Input Voltage Range
Differential Input Voltage Range
Power Dissipation
Load Current
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
+
/V
-
V
ICM
V
ID
P
D
I
O
Topr
Tstg
RATINGS
±16
±13 (Note 1)
±26 (Note 1)
700 [DMP14] (Note 2)
570 [SSOP14] (Note 2)
±50 (Note3, Note 4)
-40~+85
-40~+150
UNIT
V
V
V
mW
mA
°C
°C
(Note 1) For supply voltages less than “Absolute Maximum Ratings”, the absolute maximum input voltage is equal to the supply voltage.
(Note 2) Mounted on the EIA/JEDEC standard board (76.2 ×114.3 ×1.6mm, two layer FR-4).
(Note 3) It individually takes the absolute value of the sink current and the source current of each output terminal, and it is assumed the sum
total. Calculation type: I
O
=|I
AOUTPUT
| + |I
BOUTPUT
| + |I
COUTPUT
| + |I
DOUTPUT
|
(Note 4) Please note the supply current when the load is short-circuited.
■
RECOMMENDATION OPERATING CONDITION
(Ta=25
o
C)
PARAMETER
SYMBOL
RATINGS
MIN.
TYP.
MAX.
UNIT
Supply Voltage
V
+
/ V
-
(Note 2, Note 5, Note 6)
R
L
≥
10kΩ
±2
-
±9.5
V
(Note 5) Do not exceed “Power dissipation: P
D
” in which power dissipation in IC ”Symbol: W” is shown by the absolute maximum rating.
Please use it under the system requirements of NJM2745 to always satisfy “Condition: P
D
≥W”.
+
+
The calculation type when using it in dual supplies is “W=Icc×2×V +1.62×(V ×V+÷(2×R
L
))”.
(Calculation type condition: Loads connected with an individual output terminal are this all characteristics, and it is assumed same
resistance R
L
)
(Note 6) Refer to following Figure 1 for a permissible loss when ambient temperature (Ta) is Ta≥25
o
C.
FIGURE1:Power Dissipation vs. Ambient Temperature
1000
900
800
700
(1)
Package Ty pe
(1)DMP14[2Lay ers]
:
⊿
PD= -7.0(mW/°C)
(2)SSOP14[2Lay ers] :
⊿
PD= -5.7(mW/°C)
Power Dissipation P
D
（mW）
600 (2)
500
400
300
200
100
0
25
50
75
Ambient Temperature Ta（℃）
100
-2-
Ver.2012-07-24
NJM2745
■
ELECTRIC CHARACTERISTICS
●
DC CHARACTERISTICS
PARAMETER
Supply Current
Input Offset Voltage
Input Bias Current
Input Offset Current
Large Signal Voltage Gain
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
Maximum Output Voltage
Input Common Mode Voltage Range
SYMBOL
Icc
V
IO
I
B
I
IO
Av
CMR
SVR
V
OM
V
ICM
TEST CONDITION
No Signal
R
S
≤10kΩ
R
L
≥2kΩ,
Vo=±1.5V
R
S
≤10kΩ,
-2.5V≤V
IC
≤+2.5V
R
S
≤10kΩ,
V
+
/V
-
=±2~±7V
R
L
≥2kΩ
CMR≥70dB
MIN.
-
-
-
-
90
70
80
±2.5
-2.5
(V+/V-=±4.5V,Ta=25
o
C)
TYP.
12
0.3
100
5
110
110
110
±3
-
MAX.
16
3
500
200
-
-
-
-
+2.5
UNIT
mA
mV
nA
nA
dB
dB
dB
V
V
●
AC CHARACTERISTICS
PARAMETER
Unity Gain Bandwidth
Equivalent input Noise Voltage
Total Harmonic Distortion
SYMBOL
GB
V
NI
THD
TEST CONDITION
f=10kHz
R
S
=0Ω
+ -
V /V =±9V, A
V
=20dB, Vo=4Vrms
R
L
=2KΩ, f=1kHz
+ -
V /V =±4.5V, A
V
=20dB, Vo=1Vrms
R
L
=2kΩ, f=1kHz
MIN.
-
-
-
-
(V+/V-=±4.5V,Ta=25
o
C)
TYP.
15
5
0.001
0.005
MAX.
-
-
-
-
UNIT
MHz
nV/√Hz
%
●
TRANSIENT CHARACTERISTICS
PARAMETER
Slew Rate
SYMBOL
SR
TEST CONDITION
R
L
≥2kΩ
MIN.
-
(V+/V-=±4.5V,Ta=25
o
C)
TYP.
5
MAX.
-
UNIT
V/µs
Ver.2012-07-24
-3-
NJM2745
■
TYPICAL CHARACTERISTICS
Supply Current vs. Ambient Temperature
Supply Current vs. Supply Voltage
V
IN
=0V, Ta=25 C
o
(Supply Voltage)
V
IN
=0V
16
14
Supply Current [mA]
Supply Current [mA]
12
10
8
6
4
2
0
0
2
4
6
8 10 12 14
Supply Voltage [±V]
16
18
16
14
12
10
8
6
4
2
0
-50
-25
0
25 50 75 100 125 150
Ambient Temperature [
o
C]
V
+
/V
-
=±4.5V
V
+
/V
-
=±15V
Input Offset Voltage vs. Supply Voltage
(Ambient Temperature)
V
ICM=
0V, RS
=
10kΩ
Input Offset Voltage vs. Ambient Temperature
V
+
/V
-
=±15V, V
ICM
=0V
10
8
Input Offset Voltage [mV]
Ta=-40 C
Ta=25
o
C
o
6
4
2
0
V
+
/V
-
=±15V
V /V =±4.5V
+
-
4
2
0
-2
-4
-6
-8
-10
0
2
4
Ta=85 C
o
Input Offset Voltage [mV]
6
-2
-4
-6
6
8 10 12 14
Supply Voltage [±V]
16
18
-50
-25
0
25 50 75 100 125 150
Ambient Temperature [
o
C]
Input Offset Voltage
vs. Common Mode Input Voltage
(Ambient Temperature)
Input Offset Voltage
vs. Common Mode Input Voltage
V /V =±4.5V, R
S
=10kΩ, Ta=25 C
+
-
o
10
8
Input Offset Voltage [mV]
V
+
/V
-
=±15V, R
S
=10kΩ
10
8
4
2
0
-2
-4
-6
-8
-10
Ta=-40 C
Ta=25 C
o
o
Input Offset Voltage [mV]
6
6
4
2
0
-2
-4
-6
-8
-10
Ta=85
o
C
-15 -12 -9 -6 -3 0
3
6
9 12 15
Common Mode Input Voltage [V]
-4
-3
-2
-1
0
1
2
3
Common Mode Input Voltage [V]
4
-4-
Ver.2012-07-24
NJM2745
■
TYPICAL CHARACTERISTICS
Input Offset Current vs. Ambient Temperature
V
ICM
=0V, R
S
=50kΩ
Input Bias Current vs. Ambient Temperature
V
ICM
=0V, R
S
=10kΩ
50
500
Input Offset Current [nA]
10
V /V =±4.5V
+
-
Input Bias Current [nA]
30
400
300
V
+
/V
-
=±4.5V
V
+
/V
-
=±15V
-10
V /V =±15V
+
-
200
-30
100
-50
-50
-25
0
25 50 75 100 125 150
Ambient Temperature [
o
C]
0
-50
-25
0
25 50 75 100 125 150
Ambient Temperature [
o
C]
Common Mode Rejection Ratio
vs. Ambient Temperature
R
S
=10kΩ
Supply Voltage Rejection Ratio
vs. Ambient Temperature
R
S
=10kΩ
120
Common Mode Rejection Ratio
[dB]
100
80
60
40
20
0
-50
-25
0
25 50 75 100 125 150
Ambient Temperature [
o
C]
V /V =±4.5V
(V
ICM
=±2.5V)
+
-
120
Supply Voltage Rejection Ratio
[dB]
100
80
60
40
20
0
-50
-25
0
25 50 75 100 125 150
Ambient Temperature [
o
C]
V /V =±4.5V
(V
+
/V
-
=±2V~±7V)
+
-
V /V =±15V
(V
ICM
=±12V)
+
-
V
+
/V
-
=±15V
(V /V
-
=±2V~±15V)
+
Voltage Gain vs. Ambient Temperature
R
L
=2kΩ
Maximum Output Voltage vs. Supply Voltage
V
IN
+=±1V, V
IN
-=0V, R
L
=10kΩ, Ta=25
o
C
160
Maximum Output Voltage [V]
140
Voltage Gain [dB]
120
100
80
60
40
20
0
-50
-25
0
25 50 75 100 125 150
Ambient Temperature [
o
C]
V
+
/V
-
=±4.5V
(V
OUT
=±1.5V)
V
+
/V
-
=±15V
(V
OUT
=±5V)
20
15
10
5
0
-5
-10
-15
-20
0
2
4
6
8 10 12 14
Supply Voltage [±V]
16
18
-V
OM
+V
OM
Ver.2012-07-24
-5-
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