NJM2068
LOW-NOISE DUAL OPERATIONAL AMPLIFIER
■
GENERAL DESCRIPTION
The NJM2068 is a high performance, low noise dual operational
amplifier. This amplifier features popular pin-out, superior noise
performance, and superior total harmonic distortion. This amplifier
also features guaranteed noise performance with substantially higher
gain-bandwidth product and slew rate, which far exceeds that of the
4558 type amplifier.
The specially designed low noise input transistors allow the
NJM2068 to be used in very low noise signal processing applications
such as audio preamplifiers and servo error amplifier.
The D-Rank type products(NJM2068DD/LD/MD) have specified
maximum limits for equivalent input noise voltage.
■
FEATURES
●
Operating Voltage
●
Low Total Harmonic Distortion
●
Low Noise Voltage
●
High Slew Rate
●
Unity Gain Bandwidth
●
Bipolar Technology
●
Package Outline
■
PIN CONFIGURATION
Top View
■
PACKAGE OUTLINE
NJM2068D
(DIP8)
NJM2068M
(DMP8)
NJM2068V
(SSOP8)
NJM2068L
(SIP8)
±4V~±18V
0.001%
0.56µV (FLAT+JISA)
6V/µs
27MHz (f=10kHz)
DIP8, DMP8, SIP8, SSOP8
1
2
3
4
DIP8, DMP8,
SSOP8 Package
A
B
8
7
6
1
2
3
4
5
6
7
8
A
B
5
SIP8 Package
PIN FUNCTION
1.A OUTPUT
2.A –INPUT
3.A +INPUT
-
4.V
5.B +INPUT
6.B –INPUT
7.B OUTPUT
8.V
+
■
EQUIVALENT CIRCUIT
( 1/2 Shown )
Ver.2011-03-18
-1-
NJM2068
■
ABSOLUTE MAXIMUM RATINGS(Ta=25°C)
PARAMETER
Supply Voltage
Differential Input Voltage Range
Common Mode Input Voltage Range
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
+
/V
-
V
ID
V
IC
P
D
Topr
Tstg
RATING
±18
±30
±15 (Note1)
DIP8: 500
DMP8: 300
SSOP8: 250
SIP8: 800
-20~+75
-40~+125
UNIT
V
V
V
mW
ºC
ºC
(Note1) For supply voltage less than ±15V, the absolute maximum input voltage is equal to supply voltage.
■
RECOMMENDED OPERATING VOLTAGE(Ta=25°C)
PARAMETER
Supply Voltage
SYMBOL
V
+
/V
-
TEST CONDITION
MIN.
±4
TYP.
-
MAX.
±18
UNIT
V
■
ELECTRICAL CHARACTERISTICS(V
+
/V
-
=±15V, Ta=25°C, unless otherwise noted.)
PARAMETER
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Resistance
Voltage Gain
Maximum Output Voltage
Common Mode Input Voltage
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
Slew Rate
Gain Bandwidth Product1
Gain Bandwidth Product2
Unity Gain Frequency
Total Harmonic Distortion
Equivalent Input Noise Voltage
Supply Current
SYMBOL
V
IO
I
IO
I
B
R
IN
A
V
V
OM
V
ICM
CMR
SVR
SR
G
B1
G
B2
f
T
THD
V
NI
I
CC
R
S
≤10kΩ
R
S
≤10kΩ
R
L
≥2kΩ
f=10kHz
f=100kHz
A
V
=1
A
V
=20dB, V
O
=5V, R
L
=2kΩ, f=1kHz
FLAT+JIS A, R
S
=300Ω
R
L
≥2kΩ,
V
O
=±10V
R
L
≥2kΩ
R
S
≤10kΩ
TEST CONDITION
MIN.
-
-
-
50
90
±12
±12
80
80
-
-
-
-
-
-
-
TYP.
0.3
5
150
300
120
±13.5
±13.5
110
120
6
27
19
5.5
0.001
0.44
5
MAX.
3
200
1000
-
-
-
-
-
-
-
-
-
-
-
0.56
8
UNIT
mV
nA
nA
kΩ
dB
V
V
dB
dB
V/µs
MHz
MHz
MHz
%
µV
mA
■
ELECTRICAL CHARACTERISTICS
(D-Rank type(Note2), V
+
/V
-
=±15V, Ta=25°C, unless otherwise noted.)
PARAMETER
Equivalent Input Noise Voltage
SYMBOL
V
NI
TEST CONDITION
RIAA,R
S
=2.2kΩ
MIN.
-
TYP.
-
MAX.
1.4
UNIT
µV
(Note2)D-rank type is a Equivalent Input Noise Voltage selected product. It s only DIP, DMP and SIP package.
■
NOTICE
Oscillation might be caused when capacitor type load were connected. It is recommendable to insert series resistor
(about 50Ω) at the output for preventing oscillation.
-2-
Ver.2011-03-18
NJM2068
■
TYPICAL CHARACTERISTICS
40dB Gain/Phase vs. Frequency
50
40
30
Gain [dB]
V
+
/V
-
=±15V, R
L
=2kΩ, C
L
=100pF, Ta=25ºC
gain
Maximum Output Voltage vs. Frequency
30
Maximum Output Voltage Vopp [V]
V
+
/V
-
=±15V, R
L
=2kΩ, Ta=25ºC
25
20
15
10
5
0
10k
20
10
0
-10
-20
10k
Phase
0
Phase [deg]
-45
-90
-135
-180
10M
100k
1M
Frequency [Hz]
100k
Frequency [Hz]
1M
Maximum Output Voltage vs. Output Current
16
Maximum Output Voltage [V]
V
+
/V
-
=±15V, Ta=25ºC
Maximum Output Voltage vs. Load Resistance
30
Maximum Output Voltage Vopp [V]
V
+
/V
-
=±15V, Ta=25ºC
12
8
4
0
-4
-8
-12
-16
0
+V
OM
25
20
15
10
5
0
-V
OM
10
20 30 40 50 60
Output Current [mA]
70
80
10
100
1k
10k
Load Resistance [Ω]
100k
Voltage Noisevs. Source Resistance
1.6
Equivalent Input Noise Voltage
[µVrms]
V
+
/V
-
=±15V, JIS A, Ta=25ºC
Supply Current vs. Supply Voltage
6
5
Supply Current [mA]
No Signal, R
L
=∞, Ta=25ºC
1.4
1.2
1
0.8
0.6
0.4
0.2
0
10
Rs
100 10k
Weighting
4
3
2
1
0
100
1k
10k
Source Resistance [Ω]
100k
0
±2
±4 ±6 ±8 ±10 ±12 ±14 ±16 ±18
+ -
Supply Voltage V /V [V]
Ver.2011-03-18
-3-
NJM2068
■
TYPICAL CHARACTERISTICS
Supply Current vs. Temperature
6.0
5.5
Supply Current [mA]
V
+
/V
-
=±15V
Input Offset Voltage vs. Temperature
1.5
1
Input Offset Voltage [mV]
V
+
/V
-
=±15V
5.0
4.5
4.0
3.5
3.0
2.5
2.0
-50
-25
0
25
50
75
100
Ambient Temperature [ºC]
125
0.5
0
-0.5
-1
-1.5
-2
-50
-25
0
25
50
75
100
Ambient Temperature [ºC]
125
Input Bias Current vs. Temperature
220
200
Input Bias Current [nA]
V
+
/V
-
=±15V
Maximum Output Voltage vs. Temperature
15
Maximum Output Voltage [V]
V
+
/V
-
=±15V, R
L
=2kΩ
10
5
0
-5
-10
-15
+V
OM
180
160
140
120
100
-50
-25
0
25
50
75
100
Ambient Temperature [ºC]
125
-V
OM
-50
-25
0
25
50
75
100
Ambient Temperature [ºC]
125
Maximum Output Voltage vs. Supply Voltage
20
16
Maximum Output Voltage [V]
Ta=25ºC
R
L
=10kΩ
12
8
4
0
-4
-8
-12
-16
-20
0
±4
±8
±12
±16
+ -
Supply Voltage V /V [V]
±20
R
L
=10kΩ
-V
OM
R
L
=2kΩ
+V
OM
R
L
=2kΩ
-4-
Ver.2011-03-18
NJM2068
■
TEST CIRCUIT
Noise Voltage (RIAA) measurement circuit
+15V
-15V
3.3µ
Rs
2.2k
100µ
100µ
0.47µ
2.2µ
40dB Amp
30kHz LPF
Vout
56k
30k
330k
220k
0.0024µ
47µ
610
0.0082µ
[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.
Ver.2011-03-18
-5-
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