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
■ 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
■ PIN CONFIGURATION Top View
1 2 3
8 A
7
A B
6 1
4
B
2
5 DIP8, DMP8, SSOP8 Package
3
4
5
6
SIP8 Package
7
8
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
SYMBOL
RATING
UNIT
V /V
±18
V
Differential Input Voltage Range
VID
±30
V
Common Mode Input Voltage Range
VIC
±15 (Note1)
V
PD
DIP8: 500 DMP8: 300 SSOP8: 250 SIP8: 800
mW
Operating Temperature Range
Topr
-20~+75
ºC
Storage Temperature Range
Tstg
-40~+125
ºC
+
Supply Voltage
Power Dissipation
-
(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 +
TEST CONDITION
-
V /V
MIN.
TYP.
MAX.
UNIT
±4
-
±18
V
MIN.
TYP.
MAX.
UNIT
-
0.3
3
mV
-
5
200
nA
■ ELECTRICAL CHARACTERISTICS(V+/V-=±15V, Ta=25°C, unless otherwise noted.) PARAMETER
SYMBOL
Input Offset Voltage
VIO
Input Offset Current
IIO
TEST CONDITION RS≤10kΩ
Input Bias Current
IB
-
150
1000
nA
Input Resistance
RIN
50
300
-
kΩ
Voltage Gain
AV
RL≥2kΩ, VO=±10V
90
120
-
dB
Maximum Output Voltage
VOM
RL≥2kΩ
±12
±13.5
-
V
Common Mode Input Voltage
VICM
±12
±13.5
-
V
Common Mode Rejection Ratio
CMR
RS≤10kΩ
80
110
-
dB
Supply Voltage Rejection Ratio
SVR
RS≤10kΩ
80
120
-
dB
Slew Rate
SR
RL≥2kΩ
-
6
-
V/µs
Gain Bandwidth Product1
GB1
f=10kHz
-
27
-
MHz
Gain Bandwidth Product2
GB2
Unity Gain Frequency Total Harmonic Distortion
fT THD
Equivalent Input Noise Voltage
VNI
Supply Current
ICC
f=100kHz
-
19
-
MHz
AV=1
-
5.5
-
MHz
AV=20dB, VO=5V, RL=2kΩ, f=1kHz
-
0.001
-
%
FLAT+JIS A, RS=300Ω
-
0.44
0.56
µV
-
5
8
mA
■ ELECTRICAL CHARACTERISTICS (D-Rank type(Note2), V+/V-=±15V, Ta=25°C, unless otherwise noted.) PARAMETER
SYMBOL
Equivalent Input Noise Voltage
VNI
TEST CONDITION RIAA,RS=2.2kΩ
MIN.
TYP.
MAX.
UNIT
-
-
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.
-2-
Ver.2011-03-18
NJM2068 ■ TYPICAL CHARACTERISTICS Maximum Output Voltage vs. Frequency
40dB Gain/Phase vs. Frequency V+/V-=±15V, RL=2kΩ, CL=100pF, Ta=25ºC gain
40
Phase
0
10
-45
0
-90
-10
-135
-20 10k
Phase [deg]
Gain [dB]
30 20
25 20 15 10 5
-180 10M
100k 1M Frequency [Hz]
0 10k
Maximum Output Voltage vs. Output Current
+VOM
8 4 0 -4 -8
-VOM
-12
25 20 15 10
-16
5 0
0
10
20 30 40 50 60 Output Current [mA]
70
80
10
Voltage Noisevs. Source Resistance
100 1k 10k Load Resistance [Ω]
100k
Supply Current vs. Supply Voltage
V+/V-=±15V, JIS A, Ta=25ºC
1.6
No Signal, RL=∞, Ta=25ºC
6
Weighting
1.4
5
1.2
Rs
100 10k
Supply Current [mA]
Equivalent Input Noise Voltage [µVrms]
1M
V+/V-=±15V, Ta=25ºC
30 Maximum Output Voltage Vopp [V]
Maximum Output Voltage [V]
12
100k Frequency [Hz]
Maximum Output Voltage vs. Load Resistance
V+/V-=±15V, Ta=25ºC
16
V+/V-=±15V, RL=2kΩ, Ta=25ºC
30 Maximum Output Voltage Vopp [V]
50
1 0.8 0.6 0.4
4 3 2 1
0.2 0
0 10
Ver.2011-03-18
100 1k 10k Source Resistance [Ω]
100k
0
±2
±4 ±6 ±8 ±10 ±12 ±14 ±16 ±18 + Supply Voltage V /V [V]
-3-
NJM2068 ■ TYPICAL CHARACTERISTICS Supply Current vs. Temperature
Input Offset Voltage vs. Temperature
V+/V-=±15V
6.0 5.5
Input Offset Voltage [mV]
1
Supply Current [mA]
5.0 4.5 4.0 3.5 3.0
0.5 0 -0.5 -1 -1.5
2.5 2.0
-2 -50
-25
0 25 50 75 100 Ambient Temperature [ºC]
125
-50
V+/V-=±15V
220
-25
0 25 50 75 100 Ambient Temperature [ºC]
125
Maximum Output Voltage vs. Temperature
Input Bias Current vs. Temperature
V+/V-=±15V, RL=2kΩ
15 Maximum Output Voltage [V]
200 Input Bias Current [nA]
V+/V-=±15V
1.5
180 160 140 120 100
+VOM
10 5 0 -5 -10
-VOM
-15 -50
-25
0 25 50 75 100 Ambient Temperature [ºC]
125
-50
-25
0 25 50 75 100 Ambient Temperature [ºC]
125
Maximum Output Voltage vs. Supply Voltage Ta=25ºC
20
RL=10kΩ
Maximum Output Voltage [V]
16 12 +VOM
8
RL=2kΩ
4 0 -4 -8
RL=2kΩ
-VOM
-12 RL=10kΩ
-16 -20 0
-4-
±4 ±8 ±12 ±16 + Supply Voltage V /V [V]
±20
Ver.2011-03-18
NJM2068 ■ TEST CIRCUIT Noise Voltage (RIAA) measurement circuit
3.3µ
+15V
-15V
100µ
Rs 2.2k
100µ
40dB Amp 30kHz LPF 0.47µ
2.2µ Vout
56k 30k
330k
0.0024µ
0.0082µ
220k
47µ 610
[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
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