NJM2902
-
1
-
Ver.2014-04-21
QUAD SINGLE-SUPPLY OPERATIONAL AMPLIFIER
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
The NJM2902 consists of four independent high-gain
operational amplifiers that are designed for single-supply
operation.
Operation from split power supplies is also possible and the low
power supply drain is independent of the magnitude of the power
supply voltage.
Used with a dual supply the circuit will operate over a wide
range of supply voltages. However, a large amount of crossover
distortion may occur with loads to ground. An external
current-sinking resistor to-VS will reduce crossover distortion.
There is no crossover distortion problem in single-supply
operation if the load is direct-coupled to ground.
■ FEATURES
● Single Supply
● Operating Voltage ( +3V~+32V )
● High Output Voltage ( V+-2V )
● Slew Rate ( 0.5V/μs typ. )
● Low Operating Current ( 1mA typ. )
● Package Outline DIP14, DMP14, SSOP14
● Bipolar Technology
■ PIN CONFIGURATION
■ EQUIVALENT CIRCUIT ( 1/4 Shown )
V-
NJM2902N, NJM2902M
NJM2902V
PIN FUNCTION
1.A OUTPUT 8.C OUTPUT
2.A –INPUT 9.C -INPUT
3.A +INPUT 10.C +INPUT
4.V+ 11.V-
5.B +INPUT 12.D +INPUT
6.B –INPUT 13.D -INPUT
7.B OUTPUT 14.D OUTPUT
1
2
3
4
14
13
12
11
5
6
7
10
9
8
A
B C
D
NJM2902N NJM2902M
NJM2902V
NJM2902
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2
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Ver.2014-04-21
■ ABSOLUTE MAXIMUM RATINGS
( Ta=25˚C )
PARAMETER SYMBOL
RATINGS UNIT
Supply Voltage V
+
(V
+
/V
-
)
32 ( or ± 16 ) V
Differential Input Voltage V
ID
32 V
Input Voltage V
IC
-0.3~ 32(Note2) V
Power Dissipation PD
( DIP14 ) 570
mW ( DMP14 ) 300
( SSOP14 ) 300
Operating Temperature Range T
opr
-40~+85 ˚C
Storage Temperature Range T
stg
-50~+125 ˚C
(Note1) Continuous short-circuits from output to GND is guaranteed only when V+≤15V.
(Note2) For supply voltage less than 32V[±16], the absolute maximum input voltage is equal to supply voltage.
■ ELECTRICAL CHARACTERISTICS
( Ta=25˚C,V+=5V )
PARAMETER SYMBOL
TEST CONDITION MIN. TYP. MAX. UNIT
Input Offset Voltage V
IO
R
S
=0Ω - 2 10 mV
Input Offset Current I
IO
I
IN
+
-I
IN
-
- 5 50 nA
Input Bias Current I
B
I
IN
+
or I
IN
-
- 20 500 nA
Large Signal Voltage Gain A
V
R
L
>2kΩ - 100 - V/mV
Maximum Output Voltage Swing V
OPP
R
L
=2kΩ 3.5 - - V
Input Common Mode Voltage Range V
ICM
0~3.5 - - V
Common Mode Rejection Ratio CMR - 85 - dB
Supply Voltage Rejection Ratio SVR - 100 - dB
Output Source Current I
SOURCE
V
IN
+
=1V,V
IN
-
=0V 20 40 - mA
Output Sink Current I
SINK
V
IN
+
=0V,V
IN
-
=1V 8 20 - mA
Channel Separation CS f=1k~20kHz,Input Referred - 120 - dB
Operating Current I
CC
R
L
=∞ - 1 2 mA
Slew Rate SR V
+
/V
-
=±15V - 0.5 - V/μs
Gain Bandwidth Product GB V
+
/V
-
=±15V - 0.5 - MHz
NJM2902
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3
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Ver.2014-04-21
■ TYPICAL CHARACTERISTICS
Maximum Output Voltage Swing
vs. Load Resistance
(V+=5V, Ta=25ºC)
0
0.5
1
1.5
2
2.5
3
3.5
4
10 100 1k 10k
Load Resistance RL (Ω)
Maximum Output Voltage Swing Vopp
(V)
Voltage Gain,Phase vs. Frequency
(V+/V-=±15V, RL=, 40dBAmp, Ta=25ºC)
0
10
20
30
40
1k 10k 100k 1M
Frequency f (Hz)
Voltage Gain Av (dB)
-180
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
30
40
Phase φ (deg)
Phase
Gain
-150
-100
-50
0
-180
Operating Current vs. Operating Voltage
(Ta=25ºC)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
0 5 10 15 20 25 30 35 40
Operating Voltage V+ (V)
Operating Current Icc (mA)
Voltage Gain vs. Operating Voltage
(Ta=25ºC)
0
60
70
80
90
100
110
0 10 20 30
Operating Voltage V+ (V)
Voltage Gain Av (dB)
RL=2ｋΩ
RL=20ｋΩ
Maximum Output Voltage vs. Operating Voltage
(RL=2kΩ, Ta=25ºC)
0
5
10
15
20
25
30
0 5 10 15 20 25 30 35
Operating Voltage V+ (V)
Maximum Output Voltage Vopp (V)
NJM2902
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4
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Ver.2014-04-21
■ TYPICAL CHARACTERISTICS
Input Offset Voltage vs. Temperature
(V+=5V)
-4
-3
-2
-1
0
1
2
3
4
-50 -25 0 25 50 75 100 125
Ambient Temperature Ta (ºC)
Input Offset Voltage VIO (mV)
Input Bias Current vs. Temperature
(V+=5V)
0
5
10
15
20
25
30
35
40
-50 -25 0 25 50 75 100 125
Ambient Temperature Ta (ºC)
Input Bias Current IB (nA)
Operating Current vs. Temperature
(V+=5V)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
-50 -25 0 25 50 75 100 125
Ambient Temperature Ta(ºC)
Operating Current Icc (mA)
Maximum Output Voltage Swing
vs. Temperature
(V+/V-=±2.5V, RL=2kΩ)
-2.5
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
-50 -25 0 25 50 75 100 125
Ambient Temperature Ta (ºC)
+VOM
-VOM
Maximum Output Voltage Swing Vopp(V)
Output Sink Current vs. Temperature
(V+=5V)
0
5
10
15
20
25
30
35
40
-50 -25 0 25 50 75 100 125
Ambient Temperature Ta (ºC)
Output Sink Current Isink (mA)
NJM2902
-
5
-
Ver.2014-04-21
■ TYPICAL CHARACTERISTICS
Sink Current
(Ta=25ºC)
0.01
0.1
1
10
0.01 0.1 1 10 100
Sink Current Isink (mA)
Output Voltage Vo (V)
5V
15V
30V
Vo
V
+
1/2V
+
ISINK
Source Current
(V+=15V, Ta=25ºC)
0
1
2
3
4
5
6
7
8
0.0001 0.001 0.01 0.1 1 10 100
Source Current Isource (mA)
Output Voltage
From Supply Voltage V+-Vo (V)
V
+
1/2V
+
Isource
V
+
－
Vo
Pulse Response
(V+=15V, RL=2kΩ)
0
1
2
3
4
0 10 20 30 40
Time t (µs)
Voltage (V)
INPUT
OUTPUT
Maximum Output Voltage Swing
vs. Frequency
(V+=15V, Ta=25ºC)
0
5
10
15
100 1k 10k 100k 1M
Frequency f (Hz)
2k
Vo
7V
100k
1k
Vin
THD
3%
15V
Maximum Output Voltage Swing VOM (V)
NJM2902
-
6
-
Ver.2014-04-21
■ APPLICATION
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
NJM2902,in its static state ( No in and output condition ) when
design,QU being biassed by constant current ( break down
beam ) yet,QL stays OFF.
While using with both power source mode,the cross-over
distortion might occur instantly when QL ON.
There might be cases when application for amplifier of audio
signals,not only distortion but also the apparent frequency
bandwidth being narrowed remarkably.
It is adjustable especially when using both power source
mode,constantly to use with higher current on QU than the load
current ( including feedback current ),and then connect the
pull-down resister RP at the part between output and V- pins.
Improvement of Cross-over Distortion
Equivalent circuit at the output stage
