NJM2739

NJM2739
Dual Precision Operational Amplifier
■ FEATURES
●Precision
■ PACKAGE OUTLINE
VIO=60µV max.
VIO=100µV max. (Ta=-40ºC to +85ºC)
●Low Offset Drift
∆VIO/∆T=0.9µV/ºC max. (Ta=-40ºC to +85ºC)
●Specified for ±15V and ±5V operation
●CMR
128dB min.
●Low Noise
VNI=80nVrms typ. at f=1 to 100Hz
en=8nV/√Hz typ. at f=100Hz
Av=130dB min.
●Open Loop Gain
●Guaranteed Temperature Ta=-40ºC to +85ºC
●Unity Gain Stable
●Operating Voltage
Vopr=±3V to ±18V
●Unity Gain Frequency
fT=1.1MHz typ.
●Supply Current
Icc=3.2mA max.
●Package
SOP8
NJM2739E
■ GENERAL DESCRIPTION
The NJM2739 is a high performance operational amplifier featured very low offset voltage and drift.
Features are low offset voltage and drift, high common mode rejection, low noise and open loop gain. DC
characteristics are100% tested and specified from −40ºC to 85ºC.
The NJM2739 is suitable for high gain circuit amplified small signal and sets required stable behavior over
a wide temperature range.
■ APPRICATION
●Thermocouple sensor
●Bridge Amplifier
●Current Sensor
●Instrumentation Amplifier
●Reference Voltage Circuit
■ PIN CONFIGURATION
■ PACKAGE DESCRIPTION
5.0±0.3
1
−INPUT A
2
+INPUT A
3
V−
4
A
B
8
V+
7
OUTPUT B
6
−INPUT B
5
+INPUT B
3.9±0.2
OUTPUT
5
8
6.0±0.4
(Top View)
4
1
1.27
0.74MAX
Ver. 04
-1-
NJM2739
■ ABSOLUTE MAXIMUM RATING (Ta=25ºC Unless Otherwise Specified)
PARAMETER
SYMBOL
RATING
Supply Voltage
V+/V±20
Common Mode Input Voltage Range (Note1) VICM
±20
Differential Input Voltage Range
VID
±30
Power Dissipation (Note2)
PD
640
Operating Temperature Range
Topr
-40 to +85
Storage Temperature Range
Tstg
-50 to +125
(Note1) For supply voltage less than ±20V, the maximum input voltage is equal to the supply voltage.
(Note2) Mounted on the EIA/JEDEC standard board (114.3×76.2×1.6mm, two layer, FR-4).
UNIT
V
V
V
mW
ºC
ºC
■ RECOMMENDED OPERATING VOLTAGE
PARAMETER
Supply Voltage
SYMBOL
V+/V-
TEST CONDITION
MIN.
±3
TYP.
-
MAX.
±18
UNIT
V
■ ELECTRONIC CHARACTERISTICS (V+/V-=±15V Ta=+25ºC, VCM=0V unless otherwise specified)
● DC CHARACTERISTICS
PARAMETER
Input Characteristics
Input Offset Voltage
Input Offset Voltage Drift
Common Mode Input Voltage Range
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
Input Bias Current
Input Bias Current Drift
Input Offset Current
Input Offset Current Drift
Differential Input Impedance
Common-Mode Input Impedance
Voltage Gain
SYMBOL
MIN.
TYP.
MAX.
UNIT
±13
Ta=-40 to +85ºC
±13
VCM=0V→-13V / VCM=0V→+13V
128
Ta=-40 to +85ºC, VCM=0V→-13V / VCM=0V→+13V 120
V+/V-=±3V to ±18V
115
Ta=-40 to +85ºC, V+/V-=±3V to ±18V
110
-0.2
Ta=-40 to +85ºC
-1.5
Ta=-40→+85ºC
Ta=-40 to +85ºC
Ta=-40→+85ºC
*1
*1
RL=2kΩ, Vo= -10V→0V / 0V→+10V / -10V→+10V
130
Ta=-40 to +85ºC,
126
RL=2kΩ, Vo= -10V→0V / 0V→+10V / -10V→+10V
DC
-
20
20
0.3
±14
±13.5
135
130
125
120
1.2
1.7
8
0.3
0.3
1.5
90
800
142
60
100
0.9
2.8
6
60
2.8
4.5
72
-
µV
µV
µV/ºC
V
dB
dB
dB
dB
dB
nA
nA
pA/ºC
nA
nA
pA/ºC
MΩ
GΩ
dB
136
-
dB
0.01
-
µV/V
VOM1
VOM2
VOM3
VOM4
VOM5
RO
RL=10kΩ
Ta=-40 to +85ºC, RL=10kΩ
RL=2kΩ
Ta=-40 to +85ºC, RL=2kΩ
RL=1kΩ
Open-Loop
±13.5
±13.0
±12.5
±12.0
±12.0
-
±14.0
±14.0
±13.0
±13.0
±12.5
60
-
V
V
V
V
Ω
ICC1
ICC2
ICC3
PD1
PD1
AV=+1, RL=∞
Ta=-40 to +85ºC, AV=+1, RL=∞
V+/V-=±3V, AV=+1, RL=∞
AV=+1, RL=∞
V+/V-=±3V, AV=+1, RL=∞
-
2.6
2.7
1.3
78
81
3.2
3.4
1.6
96
102
mA
mA
mA
mW
mW
VIO1
VIO2
∆VIO/∆T
VICM1
VICM1
CMR1
CMR2
SVR1
SVR2
IB1
IB2
∆IB/∆T
IIO1
IIO2
∆IIO/∆T
RID
RIC
Av1
Av2
Channel Separation
Output Characteristics
Maximum Output Voltage
Output Resistance
Supply Characteristics
Supply Current
CS
TEST CONDITION
Ta=-40 to +85ºC
Ta=-40→+25ºC / Ta=+25ºC→+85ºC
*1 Theoretical value by design
-2-
Ver. 04
NJM2739
● AC CHARACTERISTICS
PARAMETER
Frequency Characteristics
Unity Gain Frequency
Slew Rate
Noise Characteristics
Equivalent Input Noise Voltage
Equivalent Input Noise Current
SYMBOL
fT
+SR
-SR
VNI
INI
TEST CONDITION
AV=+100, RL=2kΩ, CL=10pF
RISE, AV=+1, VIN=1Vpp, RL=2kΩ
FALL, AV=+1, VIN=1Vpp, RL=2kΩ
fo=1Hz to 100Hz
fo=1Hz to 100Hz
MIN.
TYP.
MAX.
UNIT
0.1
0.1
1.1
0.3
0.3
-
MHz
V/µS
V/µS
-
80
3
-
nVrms
pArms
■ ELECTRONIC CHARACTERISTICS (V+/V-=±5V Ta=+25ºC, VCM=0V unless otherwise specified)
PARAMETER
Input Characteristics
Input Offset Voltage
Common Mode Input Voltage Range
Common Mode Rejection Ratio
Input Bias Current
Input Offset Current
Voltage Gain
SYMBOL
VIO1
VIO2
VICM1
VICM1
CMR1
CMR2
IB1
IB2
IIO1
IIO2
Av1
Av2
Channel Separation
Output Characteristics
Maximum Output Voltage
Supply Characteristics
Supply Current
Ver. 04
CS
TEST CONDITION
Ta=-40ºC to +85ºC
Ta=-40ºC to +85ºC
VCM=0V→-3V / VCM=0V→+3V
Ta=-40ºC to +85ºC, VCM=0V→-3V / VCM=0V→+3V
Ta=-40ºC to +85ºC
Ta=-40ºC to +85ºC
RL=2kΩ, Vo= -3V→0V / 0V→+3V / -3V→+3V
Ta=-40ºC to +85ºC,
RL=2kΩ, Vo= -3V→0V / 0V→+3V / -3V→+3V
DC
VOM1
VOM2
VOM3
VOM4
RL=10kΩ
Ta=-40ºC to +85ºC, RL=10kΩ
RL=2kΩ
Ta=-40ºC to +85ºC, RL=2kΩ
ICC1
ICC2
AV=+1, RL=∞
Ta=-40ºC to +85ºC, AV=+1, RL=∞
MIN.
TYP.
MAX.
UNIT
±3
±3
115
105
-0.2
-0.2
115
30
35
±3.9
±3.5
125
118
0.7
1.0
0.3
0.3
130
70
110
2.0
6.0
2.8
4.5
-
µV
µV
V
dB
dB
dB
nA
nA
nA
nA
dB
110
125
-
dB
-
0.01
-
µV/V
±3.5
±3.5
±3.5
±3.5
±4.0
±4.0
±4.0
±4.0
-
V
V
V
V
-
1.6
1.7
2.0
2.1
mA
mA
-3-
NJM2739
● EXPLANATION OF MEASUREMENT CONDITION
PARAMETER
Input Offset Voltage Drift
Explanation
Input Offset Voltage Drift = ∆VIO / ∆T
∆T : Amount of Temperature change.
∆VIO : Amount of Input Offset Voltage.
Common Mode Input Voltage range A range of input voltage at which the operational amplifier can function.
Common Mode Rejection Ratio
CMR = 20log | ( ∆VCM / ∆VIO )|
∆VCM : Amount of Input Voltage.
∆VIO : Amount of Input Offset Voltage.
Supply Voltage Rejection Ratio
SVR = 20log |( ∆VS / ∆VIO )|
∆VS : Amount of supply Voltage.
∆VIO : Amount of Input Offset Voltage.
Common Mode Input Impedance
RIC = ∆VCM / ∆IB
∆VCM : Amount of Input Voltage.
∆IB : Amount of Input bias current.
Voltage Gain
AV = 20log |( ∆VO / ∆VIO )|
∆VO : Amount of output Voltage.
∆VIO : Amount of Input offset Voltage.
-4-
Ver. 04
NJM2739
■ TYPICAL CHARACTERISTICS
Input Offset Voltage Distribution
+
Input Offset Voltage Distribution
-
V /V =±15V,Ta=25℃
50
40
Number Of Amplifiers
Number Of Amplifiers
40
30
20
10
20
10
0
-70-60-50-40-30-20-10 0 10 20 30 40 50 60 70
Input Offset Voltage Drift Distribution
Input Offset Voltage Drift Distribution
+
Input Offset Voltage [μV]
-
V /V =±15V,Ta=-40 to 25℃
40
Number Of Amplifiers
20
15
10
5
30
25
20
15
10
5
0
-1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8
Input Offset Voltage Drift [μV/℃]
0
1
0.2 0.4 0.6 0.8
1
Input Offset Volotage Drift Distribution
+
-
V /V =±5V,Ta=-40 to 25℃
40
35
35
30
30
Number Of Amplifiers
Number Of Amplifiers
+
-1 -0.8 -0.6 -0.4 -0.2 0
Input Offset Voltage Drift [μV/℃]
Input Offset Voltage Drift Distribution
40
V+/V-=±15V,Ta=25 to 85℃
35
25
Number Of Amplifiers
30
0
-70-60-50-40-30-20-10 0 10 20 30 40 50 60 70
Input Offset Voltage [μV]
30
25
20
15
10
-
V /V =±5V,Ta=25 to 85℃
25
20
15
10
5
5
0
-1 -0.8 -0.6 -0.4 -0.2 0
0.2 0.4 0.6 0.8
Input Offset Voltage Drift [μV/℃]
Ver. 04
V+/V-=±5V,Ta=25℃
50
1
0
-1 -0.8 -0.6 -0.4 -0.2 0
0.2 0.4 0.6 0.8
1
Input Offset Voltage Drift [μV/℃]
-5-
NJM2739
■ TYPICAL CHARACTERISTICS
Input Offset Voltage vs. Temperature
100
V+/V-=±5V, VCM=0V
100
80
80
60
60
Input Offset Voltage [µV]
Input Offset Voltage [µV]
Input Offset Voltage vs. Temperature
V+/V-=±15V, VCM=0V
40
20
0
-20
-40
-60
40
20
0
-20
-40
-60
-80
-80
-100
-100
-50
-25
0
25
50
75
Ambient Temperature [ºC]
100
-50
(Supply Voltage)
VCM =0V
Sample1 (±5V)
Sample3 (±5V)
0
Sample1 (±15V)
Sample2 (±15V)
Sample3 (±15V)
-50
-100
-50
-25
0
25
(Supply Voltage)
VCM =0V
100
50
75
100
125
V+/V -=±3V
50
Input Offset Voltge [μV]
Input Offset Voltage [μV]
Sample2 (±5V)
50
0
-100
-50
-25
25
50
75
100
125
Input Bias Curent vs. Supply Voltage
VCM =0V
VCM =0V
4
3
Input Bias Current [nA]
Input Offset Voltge [μV]
0
Ambient Temperature [℃]
40
Sample1
30
Sample2
20
10
0
Sample3
0
4
8
12
16
Supply Voltage [±V]
-6-
V+/V -=±18V
-50
Input Offset Voltage vs. Supply Voltage
-10
V+/V -=±5V
V+/V-=±15V
Ambient Temperature [℃]
50
100
Input Offset Voltage vs. Temperature
Input Offset Voltage vs. Temperature
100
-25
0
25
50
75
Ambient Temperature [ºC]
20
24
2
Sample2
Sample1
1
0
-1
Sample3
0
4
8
12
16
20
24
Supply Voltage [±V]
Ver. 04
NJM2739
■ TYPICAL CHARACTERISTICS
Input Offset Voltage
vs. Common Mode Input Voltage
8
60
6
50
Input Offset Voltage [μV]
Variation in Input Offset Voltage [µV]
Variation in Input Offset Voltage
vs. Common Mode Input Voltage
4
2
0
-2
-4
(Supply Voltage)
Ta=25℃
Sample1 (±5V)
40
Sample2 (±5V)
30
20
10
0
Sample2 (±15V)
-10
-6
-20
-15
-8
-15
-10
-5
0
5
10
15
10
15
+
-
V /V =±15V
60
40
Input offset Voltage [μV]
Input Offset Voltage [μV]
5
50
30
V+/V-=±3V
20
V+/V-=±5V
10
0
V+/V-=±15V
-10
-20
-20
-15
-10
-5
V+/V-=±18V
0
5
10
40
30
Ta=25℃
10
0
Ta=-40℃
-10
15
Common Mode Input Voltage [V]
-20
-15
20
+
Input Offset Voltage Change [μV]
Ta=25℃
Ta=85℃
20
10
Ta=-40℃
0
4
8
12
16
Supply Voltage [±V]
20
-5
0
5
10
Common Mode Input Voltage [V]
15
24
-
V /V =±15V, Gv=100dB, Ta=25℃
4
40
30
-10
Warm Up Input Offset Voltage Drift
(Temperature)
Vcm=0V
50
Ta=85℃
20
Input Offset Voltage vs. Supply Voltage
Input offset Voltage [μV]
0
(Temperature)
(Supply Voltage)
Ta=25℃
50
Ver. 04
-5
Input Offset Voltage vs. Common Mode Input Voltage
Input Offset Voltage vs. Common Mode Input Voltage
0
-10
Sample3 (±15V)
Common Mode Input Voltage [V]
Common Mode Input Voltage [V]
60
Sample3 (±5V)
Sample1 (±15V)
3
2
1
0
-1
0
50
100
150
200
Time From Power Supply Turn On [sec]
-7-
NJM2739
■ TYPICAL CHARACTERISTICS
Input Offset Voltage vs. Output Voltage
+
Equivalent Input Noise Voltage
-
V /V =±15V, Gv=100dB, R L=2kΩ, Ta=25℃
Input Offset Voltage [uV]
-13
-13.5
-14
-14.5
-15
-15.5
-16
-16.5
-15
-10
-5
0
5
10
Rf=10kΩ, Rs=100Ω, Rg=100Ω, Ta=25℃
16
Equivalent Input Noise Voltage [nV/√Hz]
-12.5
14
12
V+/V-=±5V
10
8
V+/V-=±15V
6
4
2
0
15
1
Output Voltage [V]
Equivalent Input Noise Voltage
10
+
Equivalent Input Noise Voltage [μV]
Equivalent Input Noise Voltagte [μV]
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
2
4
6
8
Time [sec]
10
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
0
RL=∞
3.5
Ta=25℃
-8-
Ta=85℃
2
Ta=-40℃
1.5
0.5
8
12
V+/V -=±18V
16
Supply Voltage [±V]
20
24
V+/V -=±15V
V+/V -=±5V
1.5
0.5
4
10
(Supply Voltage)
RL=∞
2
1
0
8
2.5
1
0
6
3
Supply Current [mA]
Supply Current [mA]
2.5
4
Time [sec]
4
3.5
3
2
Supply Current vs. Temperature
Supply Current vs. Supply Voltage (Temperature)
4
-
V /V =±5V, BP=1~100Hz
0.8
0.8
0
1000
Equivalent Input Noise Voltage
V+/V-=±15V, BP=1~100Hz
-0.8
100
Frequency [Hz]
0
-50
V+/V -=±3V
-25
0
25
50
75
Ambient Temperature [℃]
100
125
Ver. 04
NJM2739
■ TYPICAL CHARACTERISTICS
Input Bias Current vs. Temperature
10
8
8
Sample1 (±15V)
Sample2 (±15V)
Sample3 (±15V)
6
Sample1 (±5V)
Sample2 (±5V)
Sample3 (±5V)
4
2
0
-50
-25
0
25
50
(Supply Voltage)
VCM=0V
10
Input Bias Current [nA]
Input Bias Current [nA]
Input Bias Current vs. Temperature
(Supply Voltage)
VCM =0V
75
100
V+/V-=±18V
6
V /V =±15V
V+/V-=±3V
4
2
-25
Ambient Temperature [℃]
V+/V-=±15V
2
Input Bias Current [nA]
Input Bias Current [nA]
Ta=25℃
1
0.5
Ta=85℃
-0.5
-1
-15
75
100
125
2.5
2
0
50
(Supply Voltage)
Ta=25℃
3
Ta=-40℃
1.5
25
Input Bias Current vs. Common Mode Input Voltage
(Temperature)
2.5
0
Ambient Temperature [℃]
Input Bias Current vs. Common Mode Input Voltage
3
-
V+/V-=±5V
0
-50
125
+
V+/V-=±15V
1.5
V+/V -=±18V
1
0.5
V+/V-=±3V
V+/V-=±5V
0
-0.5
-10
-5
0
5
10
-1
-20
15
-15
-10
-5
0
5
10
15
Common Mode Input Voltage [V]
Common Mode Input Voltage [V]
Input Offset Current vs. Temperature
Input Offset Current vs. Temperature
(Supply Voltage)
VCM =0V
5
20
(Supply Voltage)
VCM =0V
6
Sample1 (±15V)
Sample2 (±15V)
Sample3 (±15V)
3
Input Offset Current [nA]
Input Offset Current [nA]
5
4
Sample1 (±5V)
Sample2 (±5V)
Sample3 (±5V)
2
1
4
V+/V-=±18V
+
-
V /V =±15V
3
V+/V-=±5V
V+/V-=±3V
2
1
0
0
-50
Ver. 04
-25
0
25
50
75
Ambient Temperature [℃]
100
125
-1
-50
-25
0
25
50
75
100
125
Ambient Temperature [℃]
-9-
NJM2739
■ TYPICAL CHARACTERISTICS
Input Offset Current vs. Common Mode Input Voltage
Input Offset Current vs. Common Mode Input Voltage
(Temperature)
V+/V -=±15V
2
1.5
1
Ta=-40℃
0.5
Ta=85℃
Ta=25℃
Input Offset Current [nA]
Input Offset Current [nA]
1.5
0
-0.5
-1
-1.5
1
-0.5
V+/V -=±18V
V+/V -=±5V
-1
-10
-5
0
5
10
-2
-20
15
+
+
V ICM =V +2V to V -2V
V + /V - =±15V
V + /V - =±18V
V + /V - =±5V
150
100
V + /V -=±3V
50
0
-50
-25
0
25
50
75
100
V /V =±14.5 to ±15.5V, Gv=80dB, Ta=25℃
Supply Voltage Rejection Ratio [dB]
-SVR
80
+SVR
40
20 0
10
1
10
2
10
Frequency [Hz]
3
10
15
20
100
80
60
10
3
10
4
10
Frequency [Hz]
5
V+/V -=±18V to ±3V
200
120
60
10
120
-
100
5
Supply Voltage Rejection Ratio vs. Temperature
Supply Voltage Rejection Ratio vs. Frequency
140
0
-
40 2
10
125
Ambient Temperature [℃]
+
-5
V /V =±15V, Gv=80dB, Ta=25℃
140
Common Mode Rejection Ratio [dB]
200
-10
Common Mode Rejection Ratio vs. Frequency
(Supply Voltage)
-
-15
Common Mode Input Voltage [V]
Common Mode Rejection Ratio vs. Temperature
Common Mode Rejection Ratio [dB]
V+/V-=±3V
0
Common Mode Input Voltage [V]
Supply Voltage Rejection Ratio [dB]
V+/V -=±15V
0.5
-1.5
-2
-15
- 10 -
(Supply Voltage)
Ta=25℃
2
4
10
150
100
50
0
-50
-25
0
25
50
75
100
125
Temperature [℃]
Ver. 04
NJM2739
■ TYPICAL CHARACTERISTICS
Voltage Gain vs. Supply Voltage
Voltage Gain vs. Temperature
(Supply Voltage)
RL=2kΩ
200
+
(Temperature)
RL=2kΩ
160
-
V /V =±18V
V+/V-=±15V
150
150
Ta=-40℃
V+/V -=±3V
V+/V-=±5V
100
Voltage Gain [dB]
Voltage Gain [dB]
Ta=85℃
Ta=25℃
50
140
130
120
110
0
-50
-25
0
25
50
75
100
100
125
Ambient Temperature [℃]
Ta=25℃
Ta=85℃
0
Ta=85℃
Ta=25℃
Ta=-40℃
-10
2
10
10
3
4
10
10
20
24
10
5
V+/V-=±18V
V+/V-=±15V
+
-
V /V =±5V
V+/V-=±3V
0
-5
-10
-15
V+/V-=±3V
V+/V-=±5V
V+/V -=±15V
V+/V-=±18V
-20 1
10
5
2
3
10
4
10
10
10
Load Resistance [Ω]
Output Voltage vs. Output Current
Maximum output Voltage vs. Temperature
V+/V-=±15V
5
(Supply Voltage)
RL=2kΩ
20
15
10
+V OM Ta=-40℃
+VOM Ta=25℃
5
+VOM Ta=85℃
0
-V OM Ta=-40℃
-5
-VOM Ta=25℃
-V OM Ta=85℃
-10
-15
16
Load Resistance [Ω]
15
10
V+/V-=±5V
5
V+/V-=±18V
V+/V-=±15V
V+/V-=±3V
0
-5
V+/V-=±5V
V+/V-=±3V
V+/V-=±18V
-10
V+/V-=±15V
-15
0
5
10
15
20
25
Output Current [mA]
Ver. 04
Maximum Output Voltage [V]
Ta=-40℃
Maximum output Voltage [V]
Maximum output Voltage [V]
15
-5
12
(Supply Voltage)
Ta=25℃
20
10
-15 1
10
Output Current [V]
-
V /V =±15V
5
8
Maximum Output Voltage vs. Load Resistance
(Temperature)
15
4
Supply Voltage [±V]
Maximum Output Voltage vs. Load Resistance
+
0
30
35
40
-20
-50
-25
0
25
50
75
100
125
Ambient Temperature [Ω]
- 11 -
NJM2739
■ TYPICAL CHARACTERISTICS
THD+N vs. Frequency
THD+N vs. Output Voltage
+
V /V =±15V, Gv=20dB, R F=10kΩ,
Rs=1kΩ, Ta=25℃
10
1
0.8
1
f=20kHz
THD+N [%]
THD+N [%]
V+/V-=±15V, Gv=20dB, R F=10kΩ,
Rs=1kΩ, Vout=100mVrms, Ta=25℃
-
0.1
f=1kHz
0.01
0.6
0.4
0.2
0.001
f=100Hz
f=20Hz
0.0001
0.01
0.1
1
0
10
10
100
180
80
60
V+/V -=±18V
120
60
0
+
60
-
V /V =±3V
Phase
20
0
-60
-
V /V =±18V
V+/V-=±15V
V+/V-=±5V
-20
-40
2
10
3
10
4
10
V+/V-=±3V
10
5
6
10
10
40
20
V+/V -=±15V, Gv=40dB, R F=10kΩ,
Rs=100Ω, R T=50Ω
Gain
0
-60
0
Ta=-40℃
Ta=25℃
Ta=85℃
-20
-180
-40
2
10
7
60
Phase
-120
10
120
10
3
4
10
5
10
Frequency [Hz]
-120
6
10
-180
7
10
40dB Gain/Phase vs. Frequency (Load Capacitance)
40dB Gain/Phase vs. Frequency (Temperature)
V+/V -=±15V, Gv=40dB, R F=10kΩ,
Rs=100Ω, R T=50Ω, Ta=25℃
V+/V -=±5V, Gv=40dB, R F=10kΩ,
Rs=100Ω, R T=50Ω
CL=0.2μF
60
2
3
10
10
4
5
10
Frequency [Hz]
0
-120
10
6
-180
7
10
40
20
180
120
Ta=-40℃
gain
Ta=25℃
Ta=85℃
60
Phase
0
0
-60
Ta=-40℃
Ta=25℃
Ta=85℃
-20
-40
2
10
3
10
4
10
5
10
Frequency [Hz]
Phase [deg]
10
60
-60
CL=0.2μF
CL=0.1μF
CL=0.047μF
CL=0.01μF CL=0F
-40
60
CL=0.01μF
CL=0F
-20
- 12 -
CL=0.047μF
Phase
0
120
CL=0.1μF
Gain
20
80
Phase [deg]
40
180
Voltage Gain [dB]
80
6
180
Ta=-40℃
Ta=25℃
Ta=85℃
Frequency [Hz]
Voltage Gain [dB]
5
Phase [deg]
V+/V -=±5V
Voltage Gain [dB]
V+/V -=±15V
Phase [deg]
Voltage Gain [dB]
80
Gv=40dB, R F=10kΩ, Rs=100Ω,
RT=50Ω, Ta=25℃
+
10
40dB Gain/Phase vs. Frequency (Temperature)
40dB Gain/Phase vs. Frequency (Supply Voltage)
Gain
4
10
Frequency [Hz]
Output Voltage [Vrms]
40
1000
-120
10
6
-180
7
10
Ver. 04
NJM2739
■ TYPICAL CHARACTERISTICS
20
15
+
-
V /V =±15V, Gv=0dB, R T=50Ω, C L=0.1μF
20
15
V+/V-=±18V
Ta=85℃
V+/V-=±15V
V+/V-=±5V
10
+
Voltage Gain [dB]
Voltage Gain [dB]
V.F.Peak (Temperature)
V.F. Peak (Supply Voltage)
Gv=0dB, R T=50Ω, C L=0.1μF, Ta=25℃
-
V /V =±3V
5
0
-5
Ta=25℃
Ta=-40℃
10
5
0
-5
-10 3
10
4
5
10
-10
3
10
6
10
10
Frequency [Hz]
4
5
10
6
10
10
Frequency [Hz]
V.F.Peak (Load Capacitance)
+
-
V /V =±15V, Gv=0dB, R T=50Ω, Ta=25℃
20
CL=0.2μF
Voltage Gain [dB]
15
CL=0.1μF
10
CL=0.047μF
CL=0.01μF
5
CL=0F
0
-5
-10 3
10
10
4
10
5
6
10
Frequency [Hz]
Pulse Response (Temperature)
+
Pulse Response (Temperature)
-
V /V =±15V, R L=2kΩ, C L=5pF
2
0.8
V+/V -=±15V, R L=2kΩ, C L=5pF
2
0.8
0.4
1.6
0.4
1.2
0
1.2
0
-0.4
Ta=85℃
0.4
-0.8
Ta=25℃
0
0.8
-0.4
Output
Ta=-40℃
Ta=25℃
Ta=85℃
0.4
-1.2
0
-1.6
-0.4
-2
-0.8
-0.8
Input [V]
Input
0.8
Output [V]
1.6
Input [V]
Output [V]
Input
-1.2
Ta=-40℃
-0.4
-0.8
Ver. 04
Output
-2
-1
0
1
2
3
Time [μs]
4
5
6
-1.6
-2
-1
0
1
2
3
Time [μs]
4
5
6
-2
- 13 -
NJM2739
■ TYPICAL CHARACTERISTICS
Pulse Response (Temperature)
Pulse Response (Temperature)
V+/V-=±5V, R L=2kΩ, C L=5pF
2
V+/V-=±5V, R L=2kΩ, C L=5pF
2
0.8
0.8
0.4
1.6
0.4
1.2
0
1.2
0
-0.4
Ta=85℃
0.4
-0.8
Ta=25℃
0
-0.4
-0.8
Ta=-40℃
Output
-2
-1
0
1
2
3
4
Time [μs]
5
6
-0.4
0.8
Output
-1.2
0
-1.6
-0.4
-2
-0.8
-0.8
-1.2
-1.6
-2
-1
0
1
2
3
4
Time [μs]
5
6
-2
Pulse Response
Pulse Response
(Supply Voltage, Load Capacitance)
RL=2kΩ, Ta=25℃
2
Ta=-40℃
Ta=25℃
Ta=85℃
0.4
Input [V]
Input
0.8
Output [V]
1.6
Input [V]
Output [V]
Input
(Supply Voltage, Load Capacitance)
RL=2kΩ, Ta=25℃
2
0.8
0.8
Input
1.6
1.2
-0.8
V+/V-=±5V
CL=1500pF
-5
0
0
Time [μs]
5
10
Output [V]
-0.4
0.8
Output
-1.2
0
-1.6
-0.4
-2
-0.8
V+/V -=±15V
CL=1500pF
-5
-
-1.2
V /V =±5V
CL=100pF
-1.6
0
Time [μs]
5
10
-2
Pulse Response (Load Capacitance)
-
V /V =±15V, R L=2kΩ, Ta=25℃
2
+
-0.8
V+/V -=±15V
CL=100pF
Pulse Response (Load Capacitance)
+
V+/V -=±5V
CL=1500pF
0.4
Input [V]
V+/V -=±5V
CL=100pF
Output
1.2
-0.8
0
-0.4
0
-0.4
V+/V -=±15V
CL=1500pF
0.4
0.4
-
V /V =±15V
CL=100pF
Input
0.8
1.6
Input [V]
Output [V]
+
0.4
0.8
V+/V-=±15V, R L=2kΩ, Ta=25℃
2
0.8
Input
0.8
Input
1.6
0.4
0
1.2
0
0.8
-0.4
-0.4
0.4
-0.8
0
-0.8
-20
- 14 -
-10
0
10
20
30
Time [μs]
40
50
60
CL=0.1μF
CL=0.047μF
Output
-1.2
0
-1.6
-0.4
-2
-0.8
-20
Output
-0.4
0.4
-0.8
CL=0.2μF
-1.2
-1.6
CL=0.01μF
-10
0
Input [V]
Output [V]
1.2
0.4
Input [V]
CL=0.01μF
CL=0.047μF
CL=0.1μF
CL=0.2μF
Output [V]
1.6
10
20
30
Time [μs]
40
50
60
-2
Ver. 04
NJM2739
■ TYPICAL CHARACTERISTICS
Slew Rate vs. Temperature
Unity Gain Frequency vs. Temperature
RL=2kΩ
2
Unity Gain Frequency [MHz]
1
Slew Rate [V/μs]
0.8
0.6
V+/V -=±15V
RISE
V+/V-=±15V
FALL
0.4
0.2
0
-50
+
-25
0
25
50
75
Ambient Temperature [℃]
Ver. 04
1.5
+
-
V /V =±15V
1
V+/V -=±5V
0.5
-
V /V =±5V
RISE
V+/V-=±5V
FALL
Gv=40dB, R F=10kΩ, Rs=100Ω, R T=50Ω
100
125
0
-50
-25
0
25
50
75
100
125
Temperature [℃]
- 15 -
NJM2739
■ Application Information
●Power Supply Bypassing
The NJM2739 is a high precision operational amplifier featuring low offset voltage, high voltage gain, high CMR, high SVR
and so on. To maximize such a high performance with stable operation, the NJM2739 should be operated by clean and low
impedance supply voltage. So, the bypass capacitor should be connected to the NJM2739’s both power supply terminals
(V+ and V-) as shown in Fig.1. The bypass capacitors should be placed as close as possible to IC package
V+
2
−
7
NJM2739
+
3
6
4
V-
Fig.1 Power Supply Bypassing Circuit
●Thermoelectric Effect
The NJM2739 is a high precision operational amplifier featuring low offset voltage and low offset voltage thermal drift. To
achieve such a high performance, take care about thermoelectric effect possibly occurs on each input terminal of the
NJM2739. Generally, if there are thermal mismatches at the junction of different types of metals, the thermoelectric voltage
(Seebeck effect) occurs at the junction. The thermoelectric voltages possibly occur at the junction of PCB metal patterns
and NJM2739’s each input terminal metal. If there is thermal mismatch in-between NJM2739’s each input terminal metal,
the thermoelectric voltages generated on each input terminal possibly have different voltage each. This voltage difference
causes offset voltage and offset voltage thermal drift of the NJM2739. To minimize this voltage difference, the thermal
mismatch in-between NJM2739’s each input terminal and PCB metal should be minimized.
●Differential Amplifier
Differential amplifier (see below Fig.2) is used in high accuracy circuit to improve common mode rejection ratio (CMR).
A matching between the ratio R1/R2 = R3/R4 and R1=R3 makes the high CMR.
For example, acceptable error range to obtain CMR of 130dB or more is about 0.1ppm.
R2
V+
R1
2
−
7
NJM2739
R3
3
R4
+
6
4
V-
Fig.2 Differential Amplifier
- 16 -
[CAUTION]
The specifications on this data book are only given for
information, without any guarantee as regards either
mistakes or omissions. The application circuits in this
data book 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. 04