BU5281G Datasheet, PDF (3/22 Pages) Rohm – Low Input Offset Voltage Ground Sense CMOS Operational Amplifiers

BU5281G BU5281SG
Datasheet
Absolute Maximum Ratings (TA=25°C)
Parameter
Symbol
Ratings
Unit
BU5281G
BU5281SG
Supply Voltage
Power Dissipation
Differential Input Voltage ^{(Note 3)}
VDD - VSS
PD
VID
+7
V
0.54 ^{(Note 1,2)}
W
VDD - VSS
V
Input Common-mode
Voltage Range
VICM
(VSS - 0.3) to VDD + 0.3
V
Input Current ^{(Note 4)}
II
Operating Supply Voltage
Vopr
Operating Temperature
Topr
Storage Temperature
Tstg
±10
mA
+1.8 to +5.5
V
- 40 to +85
- 40 to +105
°C
- 55 to +125
°C
Maximum
Junction Temperature
TJmax
+125
°C
(Note 1) To use at temperature above TA＝25°C reduce 5.4mW.
(Note 2) Mounted on a FR4 glass epoxy PCB(70mm×70mm×1.6mm).
(Note 3) The voltage difference between inverting input and non-inverting input is the differential input voltage.
Then input terminal voltage is set to more than VSS.
(Note 4) An excessive input current will flow when input voltages of more than VDD+0.6V or lesser than VSS-0.6V are applied.
The input current can be set to less than the rated current by adding a limiting resistor.
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open
circuit between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case
the IC is operated over the absolute maximum ratings.
Electrical Characteristics
○BU5281G, BU5281SG (Unless otherwise specified VDD=+3V, VSS=0V, TA=25°C)
Parameter
Symbol
Temperature
Range
Min.
Limits
Typ.
Max.
Input Offset Voltage ^{(Note 5)}
VIO
25°C
-
0.1
2.5
Input Offset Voltage drift ^{(Note 5)}
∆VIO/∆T
-
-
0.8
-
Input Offset Current ^{(Note 5)}
IIO
25°C
-
1
-
Input Bias Current ^{(Note 5)}
IB
25°C
-
1
-
Unit
mV
µV/°C
pA
pA
Supply Current ^{(Note 6)}
25°C
-
IDD
Full range
-
750 1000
µA
-
1200
Maximum Output Voltage (High)
VOH
25°C VDD-0.1 -
-
V
Maximum Output Voltage (Low)
VOL
25°C
-
- VSS+0.1 V
Large Signal Voltage Gain
AV
25°C
70
110
-
dB
Condition
-
-
-
-
RL=∞
AV=0dB, IN+=0.9V
RL=10kΩ
RL=10kΩ
RL=10kΩ
Input Common-mode
Voltage Range
VICM
25°C
0
-
1.8
V VSS to VDD - 1.2V
Common-mode Rejection Ratio CMRR 25°C
45
60
-
dB
-
Power Supply Rejection Ratio
Output Source Current ^{(Note 7)}
Output Sink Current ^{(Note 7)}
PSRR
ISOURCE
ISINK
25°C
25°C
25°C
60
80
5
8
10
16
-
dB
-
-
mA OUT=VDD-0.4V
-
mA OUT=VSS+0.4V
Slew Rate
SR
25°C
-
2.0
-
V/µs CL=25pF
Unity Gain Frequency
fT
25°C
-
3
-
MHz CL=25pF, AV=40dB
Phase Margin
θ
25°C
-
40
-
deg CL=25pF, AV=40dB
Input Referred Noise Voltage
VN
25°C
-
18
-
nV/ Hz AV=40dB, f=1kHz
-
3.2
-
µVrms AV=40dB, DINAUDIO
Total Harmonic Distortion + Noise THD+N 25°C
-
0.003
-
% OUT=0.4VP-P, f=1kHz
(Note 5)
(Note 6)
(Note 7)
Absolute value
Full range BU5281: TA=-40°C to +85°C BU5281S: TA=-40°C to +105°C
Under the high temperature environment, consider the power dissipation of IC when selecting the output current.
When the terminal short circuits are continuously output, the output current is reduced to climb to the temperature inside IC.
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