Datasheet
Operational Amplifiers
Ultra Low Power
CMOS Operational Amplifiers
BU7265G
BU7265SG
BU7266xxx
BU7266Sxxx
Key Specifications
Supply Voltage Range(single supply):
+1.8V to +5.5V
Supply Current:
BU7265/BU7265SG
0.35μA(Typ)
BU7266xxx/BU7266Sxxx
t0.7μA(Typ)
Temperature Range:
BU7265G/BU7466xxx
ttt-40°C
to +85°C
BU7265SG/BU7266Sxxx
-40°C to +105°C
Input Offset Current:
1pA (Typ)
Input Bias Current:
1pA (Typ)
General Description
The BU7265G/BU7266xxx are ultra low supply current
input output full swing CMOS operational amplifiers.
The BU7265SG/BU7266Sxxx have an extended
operating temperature range. They have low operating
supply voltage and low input bias current. There are
suitable for portable equipment and sensor amplifiers.
Features
Ultra Low Supply Current
Low Operating Supply Voltage
Wide operating temperature Range
(BU7265SG/BU7266Sxxx)
Low Input Bias Current
Packages
SSOP5
SOP8
SSOP-B8
MSOP8
Applications
Battery-powered Equipment
Portable Equipment
Consumer Equipment
Sensor Amplifiers
jW(Typ)
x D(Typ) x H(Max)
M-B2.90mm
x 2.80mm x 1.25mm
jMS-jj5.00mm
x 6.20mm x 1.71mm
5M3.00mm
x 6.40mm x 1.35mm
-5SB2.90mm
x 4.00mm x 0.90mm
Simplified Schematic
VDD
V
bias
IN+
Class
AB control
IN-
OUT
V
bias
VSS
Figure 1. Simplified Schematic
○Product
structure：Silicon monolithic integrated circuit
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© 2013 ROHM Co., Ltd. All rights reserved.
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○This
product has no designed protection against radioactive rays.
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TSZ02201-0RAR1G200270-1-2
12.Sep.2013 Rev.001
BU7265G
BU7265SG
BU7266xxx
BU7266Sxxx
Datasheet
Pin Configuration
BU7265G, BU7265SG: SSOP5
IN+
1
+
-
5
VDD
Pin No.
1
2
3
4
5
Pin Name
IN+
VSS
IN-
OUT
VDD
VSS
2
IN-
3
4
OUT
BU7266F, BU7266SF: SOP8
BU7266FV, BU7266SFV: SSOP-B8
BU7266FVM, BU7266SFVM: MSOP8
OUT1
1
-IN1
2
IN1-
+IN1
3
IN1+
VEE
VSS
4
- +
CH1
VCC
8
VDD
7
OUT2
OUT2
Pin No.
1
2
3
4
5
6
7
8
Pin Name
OUT1
IN1-
IN1+
VSS
IN2+
IN2-
OUT2
VDD
+ -
CH2
-IN2
6
IN2-
+IN2
5
IN2+
Package
SSOP5
BU7265G
BU7265SG
SOP8
BU7266F
BU7266SF
SSOP-B8
BU7266FV
BU7266SFV
MSOP8
BU7266FVM
BU7266SFVM
Ordering Information
B
U
7
2
6
x
x
x
x
x
-
xx
Packaging and forming specification
E2: Embossed tape and reel
(SOP8/SSOP-B8)
TR: Embossed tape and reel
(SSOP5/MSOP8)
Part Number
BU7265G
BU7265SG
BU7266xxx
BU7266Sxxx
Package
G
: SSOP5
F
: SOP8
FV : SSOP-B8
FVM : MSOP8
Line-up
T
opr
Channels
1ch
-40°C to +85°C
2ch
1ch
-40°C to +105°C
2ch
SSOP5
SOP8
SSOP-B8
MSOP8
SSOP5
SOP8
SSOP-B8
MSOP8
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
Package
Reel of 3000
Reel of 2500
Reel of 2500
Reel of 3000
Reel of 3000
Reel of 2500
Reel of 2500
Reel of 3000
Orderable Part Number
BU7265G-TR
BU7266F-E2
BU7266FV-E2
BU7266FVM-TR
BU7265SG-TR
BU7266SF-E2
BU7266SFV-E2
BU7266SFVM-TR
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TSZ02201-0RAR1G200270-1-2
12.Sep.2013 Rev.001
BU7265G
BU7265SG
BU7266xxx
BU7266Sxxx
Datasheet
Absolute Maximum Ratings
(T
A
=25℃)
Parameter
Supply Voltage
Symbol
VDD-VSS
SSOP5
Power Dissipation
P
D
SOP8
SSOP-B8
MSOP8
Differential Input
Voltage
(Note 6)
Input Common-mode
Voltage Range
Input Current
(Note 7)
Operating Supply Voltage
Operating Temperature
Storage Temperature
Maximum
Junction Temperature
(Note 1)
(Note 2)
(Note 3)
(Note 4)
(Note 5)
(Note 6)
Rating
BU7265G
0.54
(Note 1,5)
-
-
-
BU7266xxx
+7
-
0.55
(Note 2,5)
0.50
(Note 3,5)
0.47
(Note 4,5)
VDD - VSS
(VSS - 0.3) to VDD + 0.3
±10
+1.8 to +5.5
-40 to +85
-55 to +125
+125
-40 to +105
0.54
(Note 1,5)
-
-
-
-
0.55
(Note 2,5)
0.50
(Note 3,5)
0.47
(Note 4,5)
BU7265SG
BU7266Sxxx
Unit
V
W
V
ID
V
ICM
I
I
V
opr
T
opr
T
stg
T
Jmax
V
V
mA
V
°C
°C
°C
To use at temperature above T
A
=25C reduce 5.4mW/°C.
To use at temperature above T
A
=25C reduce 5.5mW/°C.
To use at temperature above T
A
=25C reduce 5.0mW/°C.
To use at temperature above T
A
=25C reduce 4.7mW/°C.
Mounted on a FR4 glass epoxy PCB 70mm×70mm×1.6mm (Copper foil area less than 3%).
The voltage difference between inverting input and non-inverting input is the differential input voltage.
Then input pin voltage is set to more than VSS.
(Note 7) An excessive input current will flow when input voltages of more than VDD+0.6V or less 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.
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TSZ02201-0RAR1G200270-1-2
12.Sep.2013 Rev.001
BU7265G
BU7265SG
BU7266xxx
BU7266Sxxx
Datasheet
Electrical Characteristics
○BU7265G,
BU7265SG（Unless otherwise specified VDD=+3V, VSS=0V, T
A
=25°C）
Limit
Temperature
Parameter
Symbol
Range
Min
Typ
Max
Input Offset Voltage
(Note 8)
Input Offset Current
(Note 8)
Input Bias Current
(Note 8)
Supply Current
(Note 9)
Maximum Output Voltage (High)
Maximum Output Voltage (Low)
Large Signal Voltage Gain
Input Common-mode
Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(Note 10)
Output Sink Current
(Note 10)
Slew Rate
Unity Gain Frequency
Phase Margin
V
IO
I
IO
I
B
I
DD
V
OH
V
OL
A
V
V
ICM
CMRR
PSRR
I
SOURCE
I
SINK
SR
f
T
θ
25°C
25°C
25°C
25°C
Full range
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
-
-
-
-
-
VDD-0.1
-
60
0
45
60
1
2
-
-
-
1
1
1
0.35
-
-
-
95
-
60
80
2.4
4
2.4
4
60
8.5
-
-
0.9
1.3
-
VSS+0.1
-
3
-
-
-
-
-
-
-
Unit
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
V/ms
kHz
deg
Conditions
VDD=1.8V to 5.5V
-
-
R
L
=∞, A
V
=0dB
IN+ =1.5V
R
L
=10kΩ
R
L
=10kΩ
R
L
=10kΩ
VSS to VDD
-
-
OUT=VDD-0.4V
OUT=VSS+0.4V
C
L
=25pF
C
L
=25pF, A
V
=40dB
C
L
=25pF, A
V
=40dB
(Note 8) Absolute value
(Note 9) Full range BU7265: T
A
=-40C to +85C BU7265S: T
A
=-40C to +105C
(Note 10) 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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TSZ02201-0RAR1G200270-1-2
12.Sep.2013 Rev.001
BU7265G
BU7265SG
BU7266xxx
BU7266Sxxx
Datasheet
Electrical Characteristics - continued
○BU7266xxx,
BU7266Sxxx（Unless otherwise specified VDD=+3V, VSS=0V, T
A
=25°C）
Limit
Temperature
Parameter
Symbol
Unit
Range
Min
Typ
Max
Input Offset Voltage
(Note 11)
Input Offset Current
(Note 11)
Input Bias Current
(Note 11)
Supply Current
(Note 12)
Maximum Output Voltage (High)
Maximum Output Voltage (Low)
Large Signal Voltage Gain
Input Common-mode
Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(Note 13)
Output Sink Current
(Note 13)
Slew Rate
Unity Gain Frequency
Phase Margin
Channel Separation
V
IO
I
IO
I
B
I
DD
V
OH
V
OL
A
V
V
ICM
CMRR
PSRR
I
SOURCE
I
SINK
SR
f
T
θ
CS
25°C
25°C
25°C
25°C
Full range
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25℃
-
-
-
-
-
VDD-0.1
-
60
0
45
60
1
2
-
-
-
-
1
1
1
0.7
-
-
-
95
-
60
80
2.4
4
2.4
4
60
100
8.5
-
-
1.55
2.1
-
VSS+0.1
-
3
-
-
-
-
-
-
-
-
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
Conditions
VDD=1.8V to 5.5V
-
-
R
L
=∞, All Op-Amps
A
V
=0dB, IN+=1.5V
R
L
=10kΩ
R
L
=10kΩ
R
L
=10kΩ
VSS to VDD
-
-
OUT=VDD-0.4V
OUT=VSS+0.4V
V/ms C
L
=25pF
kHz
deg
dB
C
L
=25pF, A
V
=40dB
C
L
=25pF, A
V
=40dB
A
V
=40dB,
OUT=1Vrms
(Note 11) Absolute value
(Note 12) Full range BU7266: T
A
=-40C to +85C BU7266S: T
A
=-40C to +105C
(Note 13) 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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TSZ22111½15½001
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TSZ02201-0RAR1G200270-1-2
12.Sep.2013 Rev.001
