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NJU7028V datasheet
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8/10/2019 NJU7028V datasheet
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- 1 -
NJU7028
Ver.2011-11-28
13µA/ch, Rail-to-Rail OutputQuad CMOS Operational Amplifier
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJU7028 is a low power, quad CMOS operational
amplifier. It is tolerant to RF noise. The NJU7028 can
operate from a single-supply voltage of +1.8V to +5.5V.
In addition, this amplifier features Rail-to-Rail output and low
input bias current (1pA). Because of these features, the
NJU7028 is ideal for low-side current sense amplifier.
The very low supply current of the NJU7028 (13µA/ch)
makes it suitable for battery-operated application.
FEATURES
Low Supply Current IDD=13µA/ch typ.
Low Operating Voltage Vopr= 1.8V to 5.5V
Rail-to-Rail Output VOH=4.9V min./ VOL=0.1V max. (at VDD= 5V, RL=100kΩ)
VOH=4.8V min./ VOL=0.2V max. (at VDD= 5V, IO=1mA)
Enhanced RF Noise Immunity
CMOS Process
Package SSOP14
APPLICATIONBattery-operated applicationBattery monitorCurrent sensorPhotodiode amplification
PIN CONFIGURATION
NJU7028V(SSOP14)
1
2
3
4
14
13
12
11
5
6
7
10
9
8
1
2 3
4 Pin Function1. OUTPUT 1 8. OUTPUT 32. -INPUT 1 9. -INPUT 33. +INPUT 1 10. +INPUT 34. VDD 11. VSS 5. +INPUT 2 12. +INPUT 46. -INPUT 2 13. -INPUT 47. OUTPUT 2 14. OUTPUT 4
Top View
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NJU7028
- 2 - Ver.2011-11-28
ABSOLUTE MAXIMUM RATINGS (Ta=25˚C, unless otherwise noted.)
(Note1) For supply voltage less than +7V, the absolute maximum rating is equal to the supply voltage.(Note2) EIA/JEDEC STANDARD Test board (114.3 x 76.2 x 1.6mm, 2layers, FR-4) mounting.(Note3) Do not exceed “Power dissipation: PD” in which power dissipation in IC is shown by the absolute maximum rating.
See Figure “Power Dissipation Curve” when ambient temperature is over 25˚C.
RECOMMENDED OPERATING CONDITION (Ta=25˚C)
PARAMETER SYMBOL RATING UNIT
Supply Voltage VDD 1.8 to 5.5 V
PARAMETER SYMBOL RATINGS UNIT
Supply Voltage VDD +7 V
Input Common Mode Voltage VICM V SS -0.3 to VDD+0.3 V
Differential Input Voltage VID ±7 (Note1) V
Power Dissipation PD 400 (Note2) mWOperating Temperature Range Top r -40 to +85 ˚C
Storage Temperature Range Tst g -55 to +125 ˚C
Power Dissipation Derating Curve
0
100
200
300
400
500
600
5 25 45 65 85 105 125
Ambient Temperature Ta (°C)
P o w e r D i s s i p a t i o n P d ( m W )
(a) ∆
Pd=-4mW/°C(Note2)
Figure 1
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NJU7028
- 3 -Ver.2011-11-28
ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS (VDD=5V, VSS=0V, Ta=25˚C, unless otherwise noted.)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Supply Current IDD No Signal - 48 72 µ A
Input Offset Voltage VIO V IC=0V, RS=50Ω - 0.9 4 mV
Input Offset Voltage drift ∆VIO/ ∆T - 1.5 - µV/ºCInput Bias Current IB - 1 - pA
Input Offset Current IIO - 1 - pA
Open loop gain AV V O=0.5V to 4.5V, RL=100kΩ to 2.5V 70 90 - dB
Common Mode Rejection Ratio CMR VICM=0V to 4.1V 65 80 - dB
Supply Voltage Rejection Ratio SVR VDD=1.8V to 5.5V 70 90 - dB
VOH1 RL=100kΩ to 2.5V 4.9 4.95 - VMaximum Output Voltage 1
VOL1 RL=100kΩ to 2.5V - 0.05 0.1 V
VOH2 RL=100kΩ to 0V 4.9 4.95 - VMaximum Output Voltage 2
VOL2 RL=100kΩ to 0V - 0.02 0.05 V
VOH3 Isource=1mA 4.8 4.85 - V
Maximum Output Voltage 3 VOL3 Isink=1mA - 0.15 0.2 V
Common Mode Input Voltage Range VICM CMR ≥65dB 0 - 4.1 V
AC CHARACTERISTICS (VDD=5V, VSS=0V, Ta=25˚C, unless otherwise noted.)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Gain Bandwidth Product GBW RL=100kΩ to 2.5V, C L=20pF, f=10kHz - 160 - kHz
Phase Margin M R L=100kΩ to 2.5V, C L=20pF - 80 - deg
Gain Margin GM R L=100kΩ to 2.5V, C L=20pF - 15 - dB
Equivalent Input Noise Voltage en f=1kHz - 50 - nV/√Hz
Slew Rate SRGV=0dB, RL=100kΩ to 2.5V, C L=20pF,
Vin=3Vpp (1V to 4V)(Note4) (Note5)
- 0.05 - V/us
Power Bandwidth PBWGV=6dB, RF=50kΩ, RG=50kΩ, CL=20pF,Vin=2.5Vpp (1.25V to 3.75V), Vo≥4.8Vpp
(Note6)- 5 - kHz
Total Harmonic Distortion THDGV=6dB, RF=50kΩ, RG=50kΩ, CL=20pF,
Vo=4Vpp, f=100Hz(Note6)
- 0.01 - %
(Note4) Slew rate is defined by the lower value of the rise or fall.
(Note5) See figure2-1 for test circuit.
(Note6) See figure2-3 for test circuit.
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NJU7028
- 4 - Ver.2011-11-28
ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS (VDD=3V, VSS=0V, Ta=25˚C, unless otherwise noted.)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Supply Current IDD No Signal - 45 68 µ A
Input Offset Voltage VIO Vic=0V, R S=50Ω - 0.9 4 mV
Input Offset Voltage drift ∆VIO/ ∆T - 1.5 - µV/ºCInput Bias Current IB - 1 - pA
Input Offset Current IIO - 1 - pA
Open loop gain AV Vo=0.5V to 2.5V, R L=100kΩ to 1.5V 70 90 - dB
Common Mode Rejection Ratio CMR VICM=0V to 2.1V 65 80 - dB
Supply Voltage Rejection Ratio SVR VDD=1.8V to 5.5V 70 90 - dB
VOH1 RL=100kΩ to 1.5V 2.9 2.95 - VMaximum Output Voltage 1
VOL1 RL=100kΩ to 1.5V - 0.05 0.1 V
VOH2 RL=100kΩ to 0V 2.9 2.95 - VMaximum Output Voltage 2
VOL2 RL=100kΩ to 0V - 0.02 0.05 V
VOH3 Isource=1mA 2.8 2.85 - V
Maximum Output Voltage 3 VOL3 Isink=1mA - 0.15 0.2 V
Common Mode Input Voltage Range VICM CMR ≥65dB 0 - 2.1 V
AC CHARACTERISTICS (VDD=3V, VSS=0V, Ta=25˚C, unless otherwise noted.)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Gain Bandwidth Product GBW RL=100kΩ to 1.5V, C L=20pF, f=10kHz - 150 - kHz
Phase Margin M R L=100kΩ to 1.5V, C L=20pF - 80 - deg
Gain Margin GM R L=100kΩ to 1.5V, C L=20pF - 15 - dB
Equivalent Input Noise Voltage en f=1kHz - 50 - nV/√Hz
Slew Rate SRGV=0dB, RL=100kΩ to 1.5V, C L=20pF,
Vin=1Vpp (1V to 2V)(Note4) (Note5)
- 0.05 - V/us
Power Bandwidth PBWGV=6dB, RF=50kΩ, RG=50kΩ, CL=20pF,Vin=1.5Vpp (0.75V to 2.25V), Vo≥2.8Vpp
(Note6)- 8 - kHz
Total Harmonic Distortion THDGV=6dB, RF=50kΩ, RG=50kΩ, CL=20pF,
Vo=2Vpp, f=100Hz(Note6)
- 0.01 - %
(Note4) Slew rate is defined by the lower value of the rise or fall.
(Note5) See figure2-1 for test circuit.
(Note6) See figure2-3 for test circuit.
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NJU7028
- 5 -Ver.2011-11-28
ELECTRICAL CHARACTERISTICS
DC CHARACTERISTICS (VDD=1.8V, VSS=0V, Ta=25˚C, unless otherwise noted.)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Supply Current IDD No Signal - 43 65 µ A
Input Offset Voltage VIO Vic=0V, R S=50Ω - 0.9 4 mV
Input Offset Voltage drift ∆VIO/ ∆T - 1.5 - µV/ºCInput Bias Current IB - 1 - pA
Input Offset Current IIO - 1 - pA
Open loop gain AV Vo=0.5V to 2.5V, R L=100kΩ to 0.9V 70 90 - dB
Common Mode Rejection Ratio CMR VICM=0V to 0.9V 65 80 - dB
Supply Voltage Rejection Ratio SVR VDD=1.8V to 5.5V 70 90 - dB
VOH1 RL=100kΩ to 0.9V 1.7 1.75 - VMaximum Output Voltage 1
VOL1 RL=100kΩ to 0.9V - 0.05 0.1 V
VOH2 RL=100kΩ to 0V 1.7 1.75 - VMaximum Output Voltage 2
VOL2 RL=100kΩ to 0V - 0.02 0.05 V
VOH3 Isource=0.5mA 1.5 1.55 - V
Maximum Output Voltage 3 VOL3 Isink=0.5mA - 0.25 0.3 V
Common Mode Input Voltage Range VICM CMR ≥65dB 0 - 0.9 V
AC CHARACTERISTICS (VDD=1.8V, VSS=0V, Ta=25˚C, unless otherwise noted.)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Gain Bandwidth Product GBW RL=100kΩ to 0.9V, C L=20pF, f=10kHz - 140 - kHz
Phase Margin M R L=100kΩ to 0.9V, C L=20pF - 80 - deg
Gain Margin GM R L=100kΩ to 0.9V, C L=20pF - 15 - dB
Equivalent Input Noise Voltage en f=1kHz - 50 - nV/√Hz
Slew Rate SR
GV=0dB, RL=100kΩ to 1.5V, C L=20pF,
Vin=0.5Vpp (0.3V to 0.8V)(Note4) (Note7)
- 0.05 - V/us
Power Bandwidth PBWGV=6dB, RF=50kΩ, RG=50kΩ, CL=20pF,
Vin=0.9Vpp (0V to 0.9V), Vo≥1.6Vpp(Note8)
- 14 - kHz
Total Harmonic Distortion THDGV=6dB, RF=50kΩ, RG=50kΩ, CL=20pF,
Vo=1Vpp, f=100Hz(Note8)
- 0.01 - %
(Note4) Slew rate is defined by the lower value of the rise or fall.
(Note7) See figure2-2 for test circuit.
(Note8) See figure2-4 for test circuit..
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NJU7028
- 6 - Ver.2011-11-28
MEASUREMENT CIRCUITS
VDD
RF
RG
Vout
Vin
CL
VDD
2
VDD
RF
RG
Vout
Vin
CL
VDD
Vout
Vin
CLRL
VDD
Vout
Vin
CL
VDD
2
RL
Figure 2-1:Measurement circuit 1 Figure 2-2:Measurement circuit 2
Figure 2-3:Measurement circuit 3 Figure 2-4:Measurement circuit 4
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NJU7028
- 7 -Ver.2011-11-28
TYPICAL CHARACTERISTICS
Supply Current vs. Supply Voltage (Temperature)
GV=0dB
0
10
20
30
40
50
60
0 1 2 3 4 5 6 7
Supply Voltage [V]
S u p p l y C u r r e n t [ µ A ]
Ta=-40ºC Ta=-50ºC
Ta=125ºCTa=85ºCTa=25ºC
Supply Current vs. Temperature (Supply Voltage)
GV=0dB
0
10
20
30
40
50
60
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
S u p p l y C u r r e n t [ µ A ]
VDD=3.0V
VDD=5.5V VDD=5.0V
VDD=1.8V
Input Offset Voltage vs. Temperature (Supply Voltage)
VICM=VDD /2
-4.0
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
4.0
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
I n p u t O f f s e t V o l t a g e [ m V ]
VDD=3V
VDD=5V
VDD=1.8V
Input Offset Voltage vs.
Common Mode Input Voltage(Temperature)
VDD=3V
-4.0
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
4.0
-2.0 -1.0 0.0 1.0 2.0 3.0 4.0
Common Mode Input Voltage [V]
I n p u t O f f s e t V o l t a g e [ m V ]
Ta=-40ºCTa=25ºC
Ta=85ºC
Input Offset Voltage DistributionVDD=5V, VICM=0V, Ta=25ºC, n=240
0
10
20
30
40
50
60
70
80
90
100
110120
-4.5 -3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5 4.5
Input Offset Voltage [mV]
N u m b e r o f A m p l i f i e r
Input Offset Voltage Drift DistributionVDD=5V, VICM=0V, Ta=-40 to 85ºC, n=240
0
10
20
30
40
50
60
70
80
90
100
110120
-9.0 -7.0 -5.0 -3.0 -1.0 1.0 3.0 5.0 7.0 9.0Input Offset Voltage Drift [µV/ºC]
N u m b e r o f A m p l i f i e r
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NJU7028
- 8 - Ver.2011-11-28
TYPICAL CHARACTERISTICS
CMR vs. Temperature (Supply Voltage)
VICM=0V VDD-0.9V
0
20
40
60
80
100
120
140
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
C o m m o n M o d e R e j e c t i o n R a t i o [ d
B ]
VDD=3V VDD=5V
VDD=1.8V
SVR vs. TemperatureVDD=1.8V 5.5V
0
20
40
60
80
100
120
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
S u p p l y V o l t a g e R e j e c t i o n R a t i o [ d
B ]
Output Voltage vs. Output Current (Temperature)
VDD=5V, VCM=2.5V
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0.001 0.01 0.1 1 10 100
Output Current [mA]
O u t p u t
V o l t a g e [ V ]
Ta=85ºC
Ta=-40ºC
Ta=25ºC
Ta=85ºC
Ta=-40ºC
Ta=25ºC
Gain vs. TemperatureVO=0V VDD-0.5V, RL=100kΩ to 0V
0
20
40
60
80
100
120
-50 -25 0 25 50 75 100 125
Ambient Temperature [ºC]
V o l t a g e G a i n [ d B ]
VDD=5V
VDD=3VVDD=1.8V
Output Voltage vs. Output Current (Temperature)
VDD=3V, VCM=1.5V
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.001 0.01 0.1 1 10 100
Output Current [mA]
O u t p u t V o l t a g e [ V ]
Ta=85ºC
Ta=-40ºC
Ta=25ºC
Ta=85ºC
Ta=-40ºC
Ta=25ºC
Output Voltage vs. Output Current (Temperature)
VDD=1.8V, VCM=0.9V
0.0
0.3
0.6
0.9
1.2
1.5
1.8
0.001 0.01 0.1 1 10 100
Output Current [mA]
O u t p u t V o l t a g e [ V ]
Ta=85ºC
Ta=-40ºC
Ta=25ºC
Ta=85ºC
Ta=-40ºC
Ta=25ºC
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NJU7028
- 9 -Ver.2011-11-28
TYPICAL CHARACTERISTICS
Gain / Phase vs. FrequencyRF=1MΩ, RG=10kΩ, RL=100kΩ, CL=20pF, Ta=25ºC
-60
-40
-20
0
20
40
60
100 1k 10k 100k 1M 10M
Frequency[Hz]
V o l t a g e G a i n [ d B ]
-180
-120
-60
0
60
120
180
P h a s e [ d e g ]
Gain
Phase
VDD=5V
VDD=3V
VDD=1.8V
VDD=5V
VDD=3VVDD=1.8V
Gain / Phase vs. Frequency (Load Capacitance)
VDD=3V, RF=1MΩ, RG=10kΩ, RL=100kΩ, Ta=25ºC
-60
-40
-20
0
20
40
60
100 1k 10k 100k 1M 10M
Frequency [Hz]
V o l t a g e G a i n [ d B ]
-180
-120
-60
0
60
120
180
P h a s e [ d e g ]
Gain
Phase
CL=150pF
CL=100pF
CL=20pF
CL=20pF
CL=100pF
CL=150pF
THD+Noise vs. Output VoltageVDD=3V, Gv=6dB, RF=50kΩ, CL=20pF
BW=10Hz-500kHz, Ta=25ºC
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
Output Voltage [Vrms]
T o t a l H a r m o n i c
D i s t o r t i o n + N o i s e [ % ]
f=100Hz
f=20Hz
Channel Separation vs. FrequencyVDD=3V, GV=40dB, RF=100kΩ, RL=open, VO=0.5Vrms, Ta=25ºC
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
10 100 1k 10k 100k
Frequency [Hz]
C h a n n e l S e p a r a t i o n [ d B ]
A C
A B
A D
Voltage Noise vs. FrequencyVDD=3V, GV=40dB, RF=100kΩ, RG=1kΩ, Ta=25ºC
0
20
40
60
80
100
120
140
160
180
200
1 10 100 1k 10k
Frequency [Hz]
E q u i v a l e n t I n
p u t N o i s e V o l t a g e
[ n
V / H z ]
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NJU7028
- 10 - Ver.2011-11-28
TYPICAL CHARACTERISTICS
[CAUTION]The specifications on this databook are only
given for information , without any guaranteeas regards either mistakes or omissions. Theapplication circuits in this databook aredescribed only to show representative usagesof the product and not intended for theguarantee or permission of any right includingthe industrial rights.
Pulse Response (Load Capacitance)
VDD=3V, Gv=0dB, RL=100kΩ, Ta=25ºC
-1
-1
0
1
1
2
2
3
0 0 0 0 0 0 0 0 010µs/div.
0 . 5 V / d i v .
-3
-2
-2
-1
-1
0
1
1
INPUT
CL=120pF
CL=100pF
CL=20pF
OUTPUT
Pulse Response (Load Capacitance)
VDD=3V, Gv=0dB, RL=100kΩ, Ta=25ºC
-1
-1
0
1
1
2
2
3
0 0 0 0 0 0 0 0 010µs/div.
0 . 5 V / d i v .
-3
-2
-2
-1
-1
0
1
1
INPUT
CL=120pF
CL=100pF
CL=20pFOUTPUT