NJM2068
-
1
-
Ver.2011-03-18
LOW-NOISE DUAL OPERATIONAL AMPLIFIER
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
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 ±4V~±18V
● Low Total Harmonic Distortion 0.001%
● Low Noise Voltage 0.56µV (FLAT+JISA)
● High Slew Rate 6V/µs
● Unity Gain Bandwidth 27MHz (f=10kHz)
● Bipolar Technology
● Package Outline DIP8, DMP8, SIP8, SSOP8
■ PIN CONFIGURATION
■ EQUIVALENT CIRCUIT ( 1/2 Shown )
1
2
3
4
8
7
6
5
B
A
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 234567 8
BA
Top View
DIP8, DMP8,
SSOP8 Package
SIP8 Package
NJM2068D
(DIP8)
NJM2068M
(DMP8)
NJM2068
V
(SSOP8)
NJM2068
L
(SIP8)
NJM2068
-
2
-
Ver.2011-03-18
■ ABSOLUTE MAXIMUM RATINGS(Ta=25°C)
PARAMETER SYMBOL RATING UNIT
Supply Voltage V
+
/V
-
±18 V
Differential Input Voltage Range V
ID
±30 V
Common Mode Input Voltage Range V
IC
±15 (Note1) V
Power Dissipation P
D
DIP8: 500
DMP8: 300
SSOP8: 250
SIP8: 800
mW
Operating Temperature Range Topr -20~+75 ºC
Storage Temperature Range Tstg -40~+125 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 SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Supply Voltage V
+
/V
-
±4 - ±18 V
■ ELECTRICAL CHARACTERISTICS(V+/V-=±15V, Ta=25°C, unless otherwise noted.)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Input Offset Voltage V
IO
R
S
≤10kΩ - 0.3 3 mV
Input Offset Current I
IO
- 5 200 nA
Input Bias Current I
B
- 150 1000 nA
Input Resistance R
IN
50 300 - kΩ
Voltage Gain A
V
R
L
≥2kΩ, V
O
=±10V 90 120 - dB
Maximum Output Voltage V
OM
R
L
≥2kΩ ±12 ±13.5 - V
Common Mode Input Voltage V
ICM
±12 ±13.5 - V
Common Mode Rejection Ratio CMR R
S
≤10kΩ 80 110 - dB
Supply Voltage Rejection Ratio SVR R
S
≤10kΩ 80 120 - dB
Slew Rate SR R
L
≥2kΩ - 6 - V/µs
Gain Bandwidth Product1 G
B1
f=10kHz - 27 - MHz
Gain Bandwidth Product2 G
B2
f=100kHz - 19 - MHz
Unity Gain Frequency f
T
A
V
=1 - 5.5 - MHz
Total Harmonic Distortion THD
A
V
=20dB, V
O
=5V, R
L
=2kΩ, f=1kHz - 0.001 - %
Equivalent Input Noise Voltage V
NI
FLAT+JIS A, R
S
=300Ω - 0.44 0.56 µV
Supply Current I
CC
- 5 8 mA
■ ELECTRICAL CHARACTERISTICS (D-Rank type(Note2), V+/V-=±15V, Ta=25°C, unless otherwise noted.)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Equivalent Input Noise Voltage V
NI
RIAA,R
S
=2.2kΩ - - 1.4 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.
NJM2068
-
3
-
Ver.2011-03-18
■ TYPICAL CHARACTERISTICS
Maximum Output Voltage vs. Frequency
V
+
/V
-
=±15V, R
L
=2kΩ, Ta=25ºC
0
5
10
15
20
25
30
10k 100k 1M
Frequency [Hz]
Maximum Output Voltage Vopp [V]
Maximum Output Voltage vs. Output Current
V
+
/V
-
=±15V, Ta=25ºC
-16
-12
-8
-4
0
4
8
12
16
0 1020304050607080
Output Current [mA]
Maximum Output Voltage [V]
+V
OM
-V
OM
Maximum Output Voltage vs. Load Resistance
V
+
/V
-
=±15V, Ta=25ºC
0
5
10
15
20
25
30
10 100 1k 10k 100k
Load Resistance [Ω]
Maximum Output Voltage Vopp [V]
Voltage Noisevs. Source Resistance
V
+
/V
-
=±15V, JIS A, Ta=25ºC
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
10 100 1k 10k 100k
Source Resistance [Ω]
Equivalent Input Noise Voltage
[µVrms]
Supply Current vs. Supply Voltage
No Signal, R
L
=∞, Ta=25ºC
0
1
2
3
4
5
6
0 ±2±4±6±8±10±12±14±16±18
Supply Voltage V+/V- [V]
Supply Current [mA]
40dB Gain/Phase vs. Frequency
V
+
/V
-
=±15V, R
L
=2kΩ, C
L
=100pF, Ta=25ºC
-20
-10
0
10
20
30
40
50
10k 100k 1M 10M
Frequency [Hz]
Gain [dB]
-180
-135
-90
-45
0
Phase [deg]
gain
Phase
Weighting
Rs 100 10k
NJM2068
-
4
-
Ver.2011-03-18
■ TYPICAL CHARACTERISTICS
Supply Current vs. Temperature
V
+
/V
-
=±15V
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
Supply Current [mA]
Input Offset Voltage vs. Temperature
V
+
/V
-
=±15V
-2
-1.5
-1
-0.5
0
0.5
1
1.5
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
Input Offset Voltage [mV]
Maximum Output Voltage vs. Temperature
V
+
/V
-
=±15V, R
L
=2kΩ
-15
-10
-5
0
5
10
15
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
Maximum Output Voltage [V]
+V
OM
-V
OM
Maximum Output Voltage vs. Supply Voltage
Ta=25ºC
-20
-16
-12
-8
-4
0
4
8
12
16
20
0 ±4 ±8 ±12 ±16 ±20
Supply Voltage V+/V- [V]
Maximum Output Voltage [V]
R
L
=10kΩ
R
L
=2kΩ
R
L
=10kΩ
R
L
=2kΩ
+V
OM
-V
OM
Input Bias Current vs. Temperature
V
+
/V
-
=±15V
100
120
140
160
180
200
220
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
Input Bias Current [nA]
NJM2068
-
5
-
Ver.2011-03-18
■ TEST CIRCUIT
[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.
30k 330k
0.0024µ 0.0082µ
47µ
610
56k
Rs
2.2k
3.3µ
100µ 100µ
-15V+15V
0.47µ 2.2µ
220k
40dB Amp
30kHz LPF
Vout
Noise Voltage (RIAA) measurement circui
t
