NJU77550/NJU77551/NJU77552/NJU77554
1.7MHz, 50μA/ch, Excellent EMI Immunity,
Rail-to-Rail Input/Output, Operational Amplifier
■
FEATURES
(V
+
= 5V, Typical value)
●
High Efficiency:
- GBW
1.7MHz
- Supply Current
50μA/ch
●
Rail-to-Rail Input and Output
●
Supply Voltage
1.8V to 5.5V
●
Integrated EMI filter
EMIRR = 75dB @f = 900MHz
●
Input Tolerant
●
Unity-Gain stable
●
Input Offset Voltage
5mV max.
●
Slew Rate
0.8V/μs
●
Operating Temperature
-55°C to 125°C
●
Package
NJU77550 / NJU77551
SOT-23-5, SC-88A
NJU77552
SOP8, MSOP8 (TVSP8)*
* meet JEDEC MO-187-DA / thin type
DFN8-U1 (ESON8-U1)
NJU77554
SSOP14
■
APPLICATIONS
●
Battery-Powered Equipment
- Audio, Healthcare, Security, etc.
●
Gas / Smoke Sensors
●
Smart Meter
●
Sensor Interface
●
Active Filters
●
Photodiode Amplifier
■
DESCRIPTION
The NJU77550/NJU77551/NJU77552/NJU77554 are single,
dual and quad rail-to-rail input and output single supply
OpAmp, featuring low supply current of 50μA typical per
amplifier, wide gain bandwidth product of 1.7MHz and a slew
rate of 0.8V/μs. Furthermore, operating voltage from 1.8V
single supply can contribute to energy saving design, it is most
suitable for battery equipment required low power.
Low input bias current makes NJU7755x series suitable for
photodiode amplifiers, piezoelectric sensors, smoke detector
and other applications with high-impedance applications. A
rail-to-rail input and output allows the device to be used in wide
variety of applications, such as audio amplifier, high-side
current sensing, active filter, buffering and others. And also,
High EMI immunity that can reduced malfunctions caused by
RF-noises from mobile phones and other electronic devices,
and input tolerant that allows the input voltage
(Recommended: V
-
+5.5V) that exceed positive supply voltage
is ideal for robust industrial applications.
The NJU7755x series guarantees the specifications from
1.8V to 5.5V single supply, making it ideal for low voltage
applications. In addition, the operating temperature is
expanded to -55°C to 125°C, which can be used in harsh
environments with large temperature changes.
The NJU77550/NJU77551 is available in 5-pin SC-88A and
SOT-23-5 package. The NJU77552 is available in 8-pin
SOP8, MSOP (TVSP): meet JEDEC MO-187-DA / thin type
package and DFN that is thin and 2mm square small package.
The NJU77554 is available in SSOP14 package.
TYPICAL APPLICATION
High Efficiency
GBW=1.7MHz ( I
SUPPLY
= 50μA/ch )
Gain vs. Frequency
70
V
IN
(Overvoltage)
G
V
=40dB, C
L
=100pF
3.3V
Voltage [1V/div]
60
Voltage Gain [dB]
Overvoltage
up to 5.5V
V
IN
V
OUT
50
40
30
20
10
V
+
=5V
V
+
=1.8V
V
OUT
ADC
0
Time
0
ADC buffer with input tolerant
100
1k
10k
100k
Frequency [Hz]
1M
10M
ver.3.0
www.njr.com
-1-
NJU77550/NJU77551/NJU77552/NJU77554
■
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Input Voltage
(1)
Input Current
(2)
Output Terminal Input Voltage
(3)
Differential Input Voltage
(4)
Output Short-Circuit Duration
(5)
Power Dissipation (T
a
= 25°C)
SOT-23-5
SC-88A
SOP8
MSOP8 (TVSP8)
DFN8-U1 (ESON8-U1)
SSOP14
Storage Temperature
Junction Temperature
SYMBOL
V
+
−
V
−
V
IN
I
IN
V
O
V
ID
RATING
7
V
−
−
0.3 to V
−
+ 7
10
V
−
−
0.3 to V
+
+ 0.3
±7
Continuous
2-Layer / 4-Layer
(6)
480 / 650
360 / 490
690 / 1000
510 / 680
450 / 1200
(7)
500 / 620
-65 to 150
150
UNIT
V
V
mA
V
V
P
D
mW
T
stg
T
j
°C
°C
(1) Input voltage is the voltage should be allowed to apply to the input terminal independent of the magnitude of V
+
.
The normal operation will establish when any input is within the "Common-Mode Input Voltage Range" of electrical characteristics.
(2) Input voltages below the negative supply voltage will be clamped by ESD protection diodes. If the input voltage lower than V
-
-0.3V, the input
current must be limited 10 mA or less by using a restriction resistance.
(3) The output terminal input voltage is limited at 7V.
(4) Differential voltage is the voltage difference between +INPUT and -INPUT.
(5) Short-circuit can cause excessive heating and destructive dissipation.
(6) 2-Layer: Mounted on glass epoxy board (76.2 mm × 114.3 mm × 1.6 mm: based on EIA/JEDEC standard, 2-layer FR-4).
4-Layer: Mounted on glass epoxy board (76.2 mm × 114.3 mm × 1.6 mm: based on EIA/JEDEC standard, 4-layer FR-4), internal Cu area: 74.2 mm × 74.2 mm.
(7)
2-Layer: Mounted on glass epoxy board (101.5 mm × 114.5 mm × 1.6 mm: based on EIA/JEDEC standard, 2-layer FR-4) with exposed pad.
4-Layer: Mounted on glass epoxy board (101.5 mm × 114.5 mm × 1.6 mm: based on EIA/JEDEC standard, 4-layer FR-4) with exposed pad.
(For 4-layer: Applying 99.5 mm × 99.5 mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5.)
■
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Input Voltage
Operating Temperature
SYMBOL
V
+
−
V
−
V
IN
T
opr
CONDITIONS
-40°C to 125°C
-55°C to 125°C
Closed-loop Gain
≥
1
VALUE
1.8 to 5.5
2.0 to 5.5
V
−
−
0.3 to V
−
+ 5.5
-55 to 125
UNIT
V
V
V
°C
■
TYPICAL APPLICATIONS
V
+
V
IN
V
+
V
OUT
Vref
V
OUT
V
IN
Vref
R1
R2
R1
R2
Non-i nverting a mplifier
Inverti ng amplifier
ver.3.0
www.njr.com
-4-
NJU77550/NJU77551/NJU77552/NJU77554
■
ELECTRICAL CHARACTERISTICS
(V
+
= 1.8 to 5.5V, V
−
= 0V, V
COM
= V
+
/ 2, R
L
= 10kΩ to V
COM
, T
a
= 25°C, unless otherwise noted.)
PARAMETER
INPUT CHARACTERISTICS
Input Offset Voltage
Input Bias Current
Input Offset Current
Input Offset Voltage Drift
Common-Mode Input Resistance
Differential Input Resistance
Input Capacitance
Open-Loop Voltage Gain
V
IO
I
B
I
IO
ΔV
IO
/ΔT
R
IC
R
ID
C
IN
A
V
V
+
= 5V, R
L
= 10kΩ to V
+
/ 2
V
+
= 5.5V,
V
COM
= V
−
−
0.2V to V
+
−
1.5V
Common-Mode Rejection Ratio
CMR
V
+
= 5.5V,
V
COM
= V
−
−
0.2V to V
+
V
+
= 1.8V,
V
COM
= V
−
−
0.2V to V
+
+ 0.2V
Common-Mode
Input Voltage Range
OUTPUT CHARACTERISTICS
High-level Output Voltage
V
OH
R
L
= 10kΩ to V
+
/ 2
R
L
= 2kΩ to V
+
/ 2
R
L
= 10kΩ to V
+
/ 2
Low-level Output Voltage
V
OL
R
L
= 2kΩ to V
+
/ 2
R
L
= 10kΩ to V
−
R
L
= 2kΩ to V
−
Capacitive Load Drive
Output Short-Circuit Current
POWER SUPPLY
No signal, V
COM
= 0V
Supply Current per Amplifier
I
SUPPLY
NJU77550, NJU77551
NJU77552, NJU77554
Supply Voltage Rejection Ratio
(8) V
+
+ 0.2V value is limited at 5.5V.
SVR
V
+
= 1.8V to 5.5V,
V
COM
= 0V or V
+
-
-
70
55
50
90
76
70
-
μA
μA
dB
C
L
I
SC
Sourcing, V
+
= 5V
Sinking, V
+
= 5V
V
+
−
0.025
V
+
−
0.100
-
-
-
-
-
-
-
V
+
−
0.010
V
+
−
0.050
6
30
0
0
100
40
60
-
-
25
60
5
5
-
-
-
V
V
mV
mV
mV
mV
pF
mA
mA
V
ICM
CMR
≥
50dB
T
a
=
−40°C
to 125°C
V
COM
= 0V to V
+
-
-
-
-
-
-
-
68
70
55
50
V
−
−
0.2
1
1
1
1
1
1
5
90
90
70
65
-
5
-
-
-
-
-
-
-
-
-
-
V
+
+ 0.2
(8)
mV
pA
pA
µV/°C
TΩ
TΩ
pF
dB
dB
dB
dB
V
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ver.3.0
www.njr.com
-5-
京公网安备 11010802033920号
Copyright © 2005-2023 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
