Datasheet
Operational Amplifiers
Input/Output Full Swing
Low Supply Current
CMOS Operational Amplifiers
BU7241G
BU7241SG
BU7242xxx
BU7242Sxxx
BU7244xx BU7244Sxx
General Description
BU7241G, BU7242xxx, BU7244xx are CMOS
operational amplifier of the input/output full
swing low voltage operation. Also, BU7241SG,
BU7242Sxxx, BU7244Sxx which expanded the
operating temperature range perform a lineup. It
is most suitable for a sensor amplifier and a
battery-powered equipment to have a low input
bias current, the characteristic of the low supply
current.
Key Specifications
Operating Supply Voltage Range:
+1.8V to +5.5V
Operating Temperature Range:
BU7241G, BU7242xxx, BU7244xx
-40°C to +85°C
BU7241SG, BU7242Sxxx, BU7244Sxx
-40°C to +105°C
Supply Current:
BU7241, BU7241S
70µA (Typ)
BU7242, BU7242S
180µA (Typ)
BU7244, BU7244S
360µA (Typ)
Input Offset Current:
1pA (Typ)
Input Bias Current:
1pA (Typ)
Features
Operable with Low Voltage
Operable Input-Output Full Swing
Wide Temperature Range
Low Supply Current
Low Input Bias Current
Sensor Amplifier
Battery Powered Equipment
Portable Equipment
Consumer Equipment
Packages
SSOP5
SOP8
MSOP8
VSON008X2030
SOP14
SSOP-B14
Applications
W(Typ) x D(Typ) x H(Max)
2.90mm x 2.80mm x 1.25mm
5.00mm x 6.20mm x 1.71mm
2.90mm x 4.00mm x 0.90mm
2.00mm x 3.00mm x 0.60mm
8.70mm x 6.20mm x 1.71mm
5.00mm x 6.40mm x 1.35mm
Simplified Schematic
VDD
V
bias
IN+
Class
AB control
IN-
OUT
V
bias
VSS
Figure 1. Simplified Schematic (1ch Only)
○Product
structure：Silicon monolithic integrated circuit
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111½14½001
○This
product has no designed protection against radioactive rays.
1/44
TSZ02201-0RAR0G200240-1-2
03.Dec.2014 Rev.003
BU7241G
BU7241SG
BU7242xxx
BU7242Sxxx
BU7244xx BU7244Sxx
Datasheet
Pin Configuration
BU7241G, BU7241SG : SSOP5
Pin No.
IN+ 1
VSS
IN-
2
3
+
-
4
OUT
5 VDD
Pin Name
IN+
VSS
IN-
OUT
VDD
1
2
3
4
5
BU7242F, BU7242SF
: SOP8
BU7242FVM, BU7242SFVM : MSOP8
BU7242NUX, BU7242SNUX : VSON008X2030
Pin No.
1
2
3
4
5
6
7
8
Pin Name
OUT1
IN1-
IN1+
VSS
IN2+
IN2-
OUT2
VDD
OUT1
1
CH1
- +
+
CH2
+ -
8
VDD
7
6
5
IN1- 2
IN1+ 3
VSS 4
OUT2
IN2-
IN2+
BU7244F, BU7244SF
: SOP14
BU7244FV, BU7244SFV : SSOP-B14
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pin Name
OUT1
IN1-
IN1+
VDD
IN2+
IN2-
OUT2
OUT3
IN3-
IN3+
VSS
IN4+
IN4-
OUT4
OUT1
IN1-
IN1+
VDD
IN2+
IN2-
OUT2
1
2
3
4
5
6
7
- +
－ ＋
CH2
＋ －
+ -
CH3
CH1
－ ＋
- +
CH4
＋ －
+ -
14
OUT4
13
IN4-
12
IN4+
11
VSS
10
IN3+
9
8
IN3-
OUT3
SSOP5
BU7241G
BU7241SG
SOP8
BU7242F
BU7242SF
Package
VSON008X2030
MSOP8
BU7242NUX
BU7242SNUX
SOP14
SSOP-B14
BU7244FV
BU7244SFV
BU7242FVM BU7244F
BU7242SFVM BU7244SF
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
2/44
TSZ02201-0RAR0G200240-1-2
03.Dec.2014 Rev.003
BU7241G
BU7241SG
BU7242xxx
BU7242Sxxx
BU7244xx BU7244Sxx
Datasheet
Ordering Information
B
U
7
2
4
x
x
x
x
x
-
xx
Packaging and forming specification
E2: Embossed tape and reel
(SOP8/SOP14/SSOP-B14)
TR: Embossed tape and reel
(SSOP5/MSOP8/VSON008X2030)
Part Number
BU7241G
BU7241SG
BU7242xxx
BU7242Sxxx
BU7244xx
BU7244Sxx
Package
G
: SSOP5
F
: SOP8, SOP14
FV : SSOP-B14
FVM : MSOP8
NUX : VSON008X2030
Line-up
Operating
Temperature Range
Channels
1ch
2ch
SSOP5
SOP8
MSOP8
Package
Reel of 3000
Reel of 2500
Reel of 3000
Reel of 4000
Reel of 2500
Reel of 2500
Reel of 3000
Reel of 2500
Reel of 3000
Reel of 4000
Reel of 2500
Reel of 2500
Orderable Part Number
BU7241G-TR
BU7242F-E2
BU7242FVM-TR
BU7242NUX-TR
BU7244F-E2
BU7244FV-E2
BU7241SG-TR
BU7242SF-E2
BU7242SFVM-TR
BU7242SNUX-TR
BU7244SF-E2
BU7244SFV-E2
-40°C to +85°C
VSON008X2030
4ch
1ch
2ch
SOP14
SSOP-B14
SSOP5
SOP8
MSOP8
VSON008X2030
4ch
SOP14
SSOP-B14
-40°C to +105°C
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
3/44
TSZ02201-0RAR0G200240-1-2
03.Dec.2014 Rev.003
BU7241G
BU7241SG
BU7242xxx
BU7242Sxxx
BU7244xx BU7244Sxx
Datasheet
Absolute Maximum Ratings
(T
A
=25℃)
Parameter
Supply Voltage
Symbol
VDD-VSS
SSOP5
SOP8
Power Dissipation
P
D
MSOP8
VSON008X2030
SOP14
SSOP-B14
Differential Input
(Note 8)
Voltage
Input Common-mode
Voltage
(Note 9)
Input Current
Operating Supply
Voltage Range
Operating Temperature Range
Storage Temperature Range
Maximum Junction
Temperature
(Note 1)
(Note 2)
(Note 3)
(Note 4)
(Note 5)
(Note 6)
(Note 7)
(Note 8)
Rating
BU7241G
0.54
(Note 1,7)
BU7242xxx
+7
-
0.55
0.47
0.41
(Note 2,7)
(Note 3,7)
(Note 4,7)
BU7244xx
-
-
-
-
0.45
0.70
(Note 5,7)
(Note 6,7)
Unit
V
-
-
-
-
W
-
VDD - VSS
V
ID
V
ICM
I
I
V
opr
T
opr
T
stg
T
Jmax
V
V
mA
V
°C
°C
°C
(VSS - 0.3) to (VDD + 0.3)
±10
+1.8 to +5.5
-40 to +85
-55 to +125
+125
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 4.7mW/°C.
To use at temperature above T
A
=25C reduce 4.1mW/°C.
To use at temperature above T
A
=25C reduce 4.5mW/°C.
To use at temperature above T
A
=25C reduce 7.0mW/°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 9) 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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TSZ22111½15½001
4/44
TSZ02201-0RAR0G200240-1-2
03.Dec.2014 Rev.003
BU7241G
BU7241SG
BU7242xxx
BU7242Sxxx
BU7244xx BU7244Sxx
Datasheet
Absolute Maximum Ratings
(T
A
=25℃)
- continued
Parameter
Supply Voltage
Symbol
VDD-VSS
SSOP5
SOP8
Power Dissipation
P
D
MSOP8
VSON008X2030
SOP14
SSOP-B14
Differential Input
(Note 17)
Voltage
Input Common-mode
Voltage
(Note 18)
Input Current
Operating Supply
Voltage Range
Operating Temperature Range
Storage Temperature Range
Maximum Junction
Temperature
(Note 10)
(Note 11)
(Note 12)
(Note 13)
(Note 14)
(Note 15)
(Note 16)
(Note 17)
Rating
BU7241SG
0.54
(Note 10,16)
BU7242Sxxx
+7
-
0.55
0.47
0.41
(Note 11,16)
(Note 12,16)
(Note 13,16)
BU7244Sxx
-
-
-
-
0.45
0.70
(Note 14,16)
(Note 15,16)
Unit
V
-
-
-
-
W
-
VDD - VSS
V
ID
V
ICM
I
I
V
opr
T
opr
T
stg
T
Jmax
V
V
mA
V
°C
°C
°C
(VSS - 0.3) to (VDD + 0.3)
±10
+1.8 to +5.5
-40 to +105
-55 to +125
+125
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 4.7mW/°C.
To use at temperature above T
A
=25C reduce 4.1mW/°C.
To use at temperature above T
A
=25C reduce 4.5mW/°C.
To use at temperature above T
A
=25C reduce 7.0mW/°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 18) 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.
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
5/44
TSZ02201-0RAR0G200240-1-2
03.Dec.2014 Rev.003
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