ROHM’s Selection Operational Amplifier/Comparator Series
Low Voltage Operation CMOS
Operational Amplifiers
BU7261G,BU7261S G,BU7241G,BU7241S G
BU7262F/FVM,BU7262S F/FVM, BU7242F/FVM,BU7242S F/FVM
BU7461G,BU7461S G,BU7441G,BU7441S G
BU7462F/FVM,BU7462S F/FVM, BU7442F/FVM,BU7442S F/FVM
No.09049EAT07
●Description
Low Voltage CMOS Op-Amp integrate one or two independent output full swing Op-Amps and phase compesation
capasitors on a single chip. Especially, this series is operable with low voltage, low supply current and low input bias current.
½Input-Output
Full Swing
：BU7261/BU7241
family , BU7262/BU7242 family
½Ground
Sense
：BU7461/BU7441
family , BU7462/BU7442 family
Input-Output Full Swing
P.3
High speed
Single
Dual
BU7261G
(BU7261SG:Operation guaranteed up to +105
℃
)
BU7262F/FVM
(BU7262SF/FVM:Operation guaranteed up to +105
℃
)
Low power
Single
Dual
BU7241G
(BU7241SG:Operation guaranteed up to +105
℃
)
BU7242F/FVM
(BU7242SF/FVM:Operation guaranteed up to +105
℃
)
]
Ground Sense
P.5
High speed
Single
Dual
BU7461G
(BU7461SG:Operation guaranteed up to +105
℃
)
BU7462F/FVM
(BU7462SF/FVM:Operation guaranteed up to +105
℃
)
Low power
Single
Dual
BU7441G
(BU7441SG:Operation guaranteed up to +105
℃
)
BU7442F/FVM
(BU7442SF/FVM:Operation guaranteed up to +105
℃
)
●Features
1) Operable with low voltage
Input-Output Full Swing
：+1.8
[V]½+5.5 [V] (single supply): BU7261/BU7241 family , BU7262/BU7242 family
：+1.7
[V]½+5.5 [V] (single supply): BU7461/BU7441 family , BU7462/BU7442 family
Ground Sense
2) nternal phase compensation
3) High large signal voltage gain
4) Internal ESD protection
Human body model (HBM) ±4000[V] (Typ.)
5) Low input bias current 1[pA] (Typ.)
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© 2009 ROHM Co., Ltd. All rights reserved.
1/32
2009.05 - Rev.A
BU7261G,BU7261SG,BU7241G,BU7241SG,BU7262F/FVM,BU7262SF/FVM,BU7242F/FVM,BU7242SF/FVM
BU7461G,BU7461SG,BU7441G,BU7441SG,BU7462F/FVM,BU7462SF/FVM,BU7442F/FVM,BU7442SF/FVM
Technical Note
●Pin
Assignments
IN+
1
VSS
2
IN-
3
+
-
5
VDD
OUT1
1
IN1-
2
IN1+
3
- +
+ -
CH2
CH1
8
VDD
7
OUT2
6
IN2-
5
IN2+
4
OUT
VSS
4
SSOP5
SOP8
MSOP8
Package
Input type
SSOP5
BU7261G
BU7261SG
BU7241G
BU7241SG
BU7461G
BU7461SG
BU7441G
BU7441SG
SOP8
BU7262F
BU7262SF
BU7242F
BU7242SF
BU7462F
BU7462SF
BU7442F
BU7442SF
MSOP8
BU7262FVM
BU7262SFVM
BU7242FVM
BU7242SFVM
BU7462FVM
BU7462SFVM
BU7442FVM
BU7442SFVM
Input-output Full Swing
Ground Sense
●Absolute
maximum rating(Ta=25[℃])
Rating
BU7261G，
BU7262 F/FVM BU7261SG，BU7262S F/FVM
BU7241G，
BU7242 F/FVM BU7241SG，BU7242S F/FVM
BU7461G，
BU7462 F/FVM BU7461SG，BU7462S F/FVM
BU7441G，
BU7442 F/FVM BU7441SG，BU7442S F/FVM
+7
VDD-VSS
(VSS-0.3)½(VDD+0.3)
-40½+85
-55½+125
+125
-40½+105
Parameter
Symbol
Unit
Supply Voltage
Differential Input Voltage(*1)
Input Common-mode Voltage Range
Operating Temperature
Storage Temperature
Maximum Junction Temperature
VDD-VSS
Vid
Vicm
Topr
Tstg
Tjmax
V
V
V
℃
℃
℃
Note: Absolute maximum rating item indicates the condition which must not be exceeded.
Application of voltage in excess of absolute maximum rating or use out absoluted maximum rated temperature environment may cause deterioration of characteristics.
(*1) The voltage difference between inverting input and non-inverting input is the differential input voltage.
Then input terminal voltage is set to more then VSS.
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© 2009 ROHM Co., Ltd. All rights reserved.
2/32
2009.05 - Rev.A
BU7261G,BU7261SG,BU7241G,BU7241SG,BU7262F/FVM,BU7262SF/FVM,BU7242F/FVM,BU7242SF/FVM
BU7461G,BU7461SG,BU7441G,BU7441SG,BU7462F/FVM,BU7462SF/FVM,BU7442F/FVM,BU7442SF/FVM
Technical Note
Input-Output Full Swing
BU7261G, BU7261SG, BU7241G, BU7241SG
BU7262F/FVM, BU7262S F/FVM, BU7242F/FVM, BU7242S F/FVM
●Features
1) Operable low power supply +1.8[V]½+5.5[V]
2) +1.8 [V]½+5.5[V](single supply)
±0.9[V]½±2.75[V](split supply)
3) Operable input-Output full swing
4) High slew rate (BU7261 family , BU7262 family)
5) Low supply current (BU7241 family , BU7242 family)
6) Wide temperature range
-40[℃]½+85[℃]
(BU7261G,BU7262 family , BU7241G,BU7242 family)
-40[℃]½+105[℃]
(BU7261SG,BU7262S family,BU7241SG,BU7242S family)
●Electrical
characteristics
○BU7261
family , BU7262 family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Guaranteed limit
Temperature
Parameter
Symbol
BU7261G,BU7261SG
Unit
Condition
Range
Min.
Typ.
Max.
25℃
-
1
9
VDD=1.8½5.5[V],
Input Offset Voltage
(*2)(*3)
Vio
mV
VOUT=VDD/2
Full range
-
-
10
(*2)
Input Offset Current
Iio
25℃
-
1
-
pA
-
(*2)
Input Bias Current
Ib
25℃
-
1
-
pA
-
25℃
-
250
550
RL=∞ All Op-Amps
Supply Current
(*4)
IDD
μA
AV=0[dB],VIN=1.5[V]
Full range
-
-
600
High Level Output Voltage
VOH
25℃
VDD-0.1
-
-
V
RL=10[kΩ]
Low Level Output Voltage
VOL
25℃
-
-
VSS+0.1
V
RL=10[kΩ]
Large Single Voltage Gain
AV
25℃
70
95
-
dB
RL=10[kΩ]
Input Common-mode Voltage Range
Vicm
25℃
0
-
3
V
VDD-VSS=3[V]
Common-mode Rejection Ratio
CMRR
25℃
45
60
-
dB
-
Power Supply Rejection Ratio
PSRR
25℃
60
80
-
dB
-
(*4)
Output Source Current
IOH
25℃
4
10
-
mA
VDD-0.4[V]
(*4)
Output Sink Current
IOL
25℃
5
12
-
mA
VSS+0.4[V]
Slew Rate
SR
25℃
-
1.1
-
V/μs CL=25[pF]
Gain Bandwidth Product
FT
25℃
-
2
-
MHz CL=25[pF], AV=40[dB]
Phase Margin
θ
25℃
-
50°
-
-
CL=25[pF], AV=40[dB]
Total Harmonic Distortion
THD
25℃
-
0.05
-
%
VOUT=1[Vp-p],f=1[kHz]
Channel Separation
CS
25℃
-
-
-
dB
Av=40[dB]
Guaranteed limit
BU7262 F/FVM
Temperature
Symbol
BU7262S F/FVM
Range
Min.
Typ.
Max.
25℃
-
1
9
Vio
Full range
-
-
10
Iio
25℃
-
1
-
Ib
25℃
-
1
-
25℃
-
550
1100
IDD
Full range
-
-
1200
VOH
25℃
VDD-0.1
-
-
VOL
25℃
-
-
VSS+0.1
AV
25℃
70
95
-
Vicm
25℃
0
-
3
CMRR
25℃
45
60
-
PSRR
25℃
60
80
-
IOH
25℃
4
10
-
IOL
25℃
5
12
-
SR
25℃
-
1.1
-
FT
25℃
-
2
-
θ
25℃
-
50°
-
THD
25℃
-
0.05
-
CS
25℃
-
100
-
Parameter
Unit
Condition
VDD=1.8½5.5[V],
VOUT=VDD/2
-
-
RL=∞ All Op-Amps
AV=0[dB],VIN=1.5[V]
RL=10[kΩ]
RL=10[kΩ]
RL=10[kΩ]
VDD-VSS=3[V]
-
-
VDD-0.4[V]
VSS+0.4[V]
CL=25[pF]
CL=25[pF], AV=40[dB]
CL=25[pF], AV=40[dB]
VOUT=1[Vp-p],f=1[kHz]
Av=40[dB]
Input Offset Voltage
(*2)(*3)
Input Offset Current
(*2)
Input Bias Current
(*2)
Supply Current
(*4)
High Level Output Voltage
Low Level Output Voltage
Large Single Voltage Gain
Input Common-mode Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(*4)
Output Sink Current
(*4)
Slew Rate
Gain Bandwidth Product
Phase Margin
Total Harmonic Distortion
Channel Separation
(*2)
(*3)
(*4)
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
V/μs
MHz
-
%
dB
Absolute value
Full range： BU7261, BU7262：Ta=-40[℃] to +85[℃] BU7261S, BU7262S：Ta=-40[℃] to +105[℃]
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.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
3/32
2009.05 - Rev.A
BU7261G,BU7261SG,BU7241G,BU7241SG,BU7262F/FVM,BU7262SF/FVM,BU7242F/FVM,BU7242SF/FVM
BU7461G,BU7461SG,BU7441G,BU7441SG,BU7462F/FVM,BU7462SF/FVM,BU7442F/FVM,BU7442SF/FVM
Technical Note
●Electrical
characteristics
○BU7241
family , BU7242 family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Guaranteed limit
Temperature
BU7241G,BU7241SG
Parameter
Symbol
Unit
Condition
Range
Min.
Typ.
Max.
25℃
-
1
9
VDD=1.8½5.5[V],
Input Offset Voltage
(*5)(*6)
Vio
mV
VOUT=VDD/2
Full range
-
-
10
(*5)
Input Offset Current
Iio
25℃
-
1
-
pA
-
(*5)
Input Bias Current
Ib
25℃
-
1
-
pA
-
25℃
-
70
150
RL=∞ All Op-Amps
Supply Current
(*6)
IDD
μA
AV=0[dB],VIN=1.5[V]
Full range
-
-
250
High Level Output Voltage
Low Level Output Voltage
Large Single Voltage Gain
Input Common-mode Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(*7)
Output Sink Current
(*7)
Slew Rate
Gain Bandwidth Product
Phase Margin
Total Harmonic Distortion
Channel Separation
VOH
VOL
AV
Vicm
CMRR
PSRR
IOH
IOL
SR
FT
θ
THD
CS
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
VDD-0.1
-
70
0
45
60
4
5
-
-
-
-
-
-
-
95
-
60
80
10
12
0.4
0.9
50°
0.05
-
-
VSS+0.1
-
3
-
-
-
-
-
-
-
-
-
V
V
dB
V
dB
dB
mA
mA
V/μs
MHz
-
%
dB
RL=10[kΩ]
RL=10[kΩ]
RL=10[kΩ]
VDD-VSS=3[V]
-
-
VDD-0.4[V]
VSS+0.4[V]
CL=25[pF]
CL=25[pF], AV=40[dB]
CL=25[pF], AV=40[dB]
VOUT=1[Vp-p],f=1[kHz]
Av=40[dB]
Parameter
Input Offset Voltage
(*5)(*6)
Input Offset Current
(*5)
Input Bias Current
(*5)
Supply Current
(*6)
High Level Output Voltage
Low Level Output Voltage
Large Single Voltage Gain
Input Common-mode Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(*7)
(*7)
Output Sink Current
Slew Rate
Gain Bandwidth Product
Phase Margin
Total Harmonic Distortion
Channel Separation
(*5)
(*6)
(*7)
Guaranteed limit
Temperature
BU7242F/FVM
Symbol
BU7242S F/FVM
Range
Min.
Typ.
Max.
25℃
-
1
9
Vio
Full range
-
-
10
Iio
25℃
-
1
-
Ib
25℃
-
1
-
25℃
-
180
360
IDD
Full range
-
-
600
VOH
25℃
VDD-0.1
-
-
VOL
25℃
-
-
VSS+0.1
AV
25℃
70
95
-
Vicm
25℃
0
-
3
CMRR
25℃
45
60
-
PSRR
25℃
60
80
-
IOH
25℃
4
10
-
IOL
25℃
5
12
-
SR
25℃
-
0.4
-
FT
25℃
-
0.9
-
θ
25℃
-
50°
-
THD
25℃
-
0.05
-
CS
25℃
-
100
-
Unit
Condition
VDD=1.8½5.5[V],
VOUT=VDD/2
-
-
RL=∞ All Op-Amps
AV=0[dB],VIN=1.5[V]
RL=10[kΩ]
RL=10[kΩ]
RL=10[kΩ]
VDD-VSS=3[V]
-
-
VDD-0.4[V]
VSS+0.4[V]
CL=25[pF]
CL=25[pF], AV=40[dB]
CL=25[pF], AV=40[dB]
VOUT=1[Vp-p],f=1[kHz]
Av=40[dB]
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
V/μs
MHz
-
%
dB
Absolute value
Full range： BU7241, BU7242：Ta=-40[℃] to +85[℃] BU7241S, BU7242S：Ta=-40[℃] to +105[℃]
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.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
4/32
2009.05 - Rev.A
BU7261G,BU7261SG,BU7241G,BU7241SG,BU7262F/FVM,BU7262SF/FVM,BU7242F/FVM,BU7242SF/FVM
BU7461G,BU7461SG,BU7441G,BU7441SG,BU7462F/FVM,BU7462SF/FVM,BU7442F/FVM,BU7442SF/FVM
Technical Note
Ground Sense
BU7461G,BU7461SG,BU7441G,BU7441SG
BU7462F/FVM,BU7462S F/FVM, BU7442F/FVM,BU7442S F/FVM
●Features
1) Operable low power supply +1.7[V]½+5.5[V]
2) +1.7[V]½+5.5[V](single supply)
±0.85[V]½2.75[V](split supply)
3) Operable input-ground sense, output-full swing
4) High slew rate (BU7461 family , BU7462 family)
5) Low supply current (BU7441 family , BU7442 family)
6) Wide temperature range
-40[℃]½+85[℃]
(BU7461G,BU7462 family , BU7441G,BU7442 family)
-40[℃]½+105[℃]
(BU7461SG,BU7462S family , BU7441SG,BU7442S family)
●Electrical
characteristics
○BU7461
family , BU7462 family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Guaranteed limit
Temperature
Parameter
Symbol
BU7461G,BU7461SG
Unit
Range
Min.
Typ.
Max.
(*8)(*9)
Input Offset Voltage
Vio
25℃
-
1
6
mV
(*8)
Input Offset Current
Iio
25℃
-
1
-
pA
(*8)
Input Bias Current
Ib
25℃
-
1
-
pA
25℃
-
150
350
Supply Current
(*9)
IDD
μA
Full range
-
-
450
High Level Output Voltage
VOH
25℃
VDD-0.1
-
-
V
Low Level Output Voltage
VOL
25℃
-
-
VSS+0.1 V
Large Single Voltage Gain
AV
25℃
70
95
-
dB
Input Common-mode Voltage Range
Vicm
25℃
0
-
1.8
V
Common-mode Rejection Ratio
CMRR
25℃
45
60
-
dB
Power Supply Rejection Ratio
PSRR
25℃
60
80
-
dB
(*10)
Output Source Current
IOH
25℃
4
8
-
mA
(*10)
Output Sink Current
IOL
25℃
6
12
-
mA
Slew Rate
SR
25℃
-
1.0
-
V/μs
Gain Bandwidth Product
FT
25℃
-
1
-
MHz
Phase Margin
θ
25℃
-
50°
-
-
Total Harmonic Distortion
THD
25℃
-
0.05
-
%
Condition
-
-
-
RL=∞ All Op-Amps
AV=0[dB],VIN=0.9[V]
RL=10[kΩ]
RL=10[kΩ]
RL=10[kΩ]
VSS½VDD-1.2[V]
-
-
VDD-0.4[V]
VSS+0.4[V]
CL=25[pF]
CL=25[pF], AV=40[dB]
CL=25[pF], AV=40[dB]
VOUT=1[Vp-p],f=1[kHz]
Parameter
Input Offset Voltage
(*8)(*9)
Input Offset Current
(*8)
Input Bias Current
(*8)
Supply Current
(*9)
High Level Output Voltage
Low Level Output Voltage
Large Single Voltage Gain
Input Common-mode Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(*10)
Output Sink Current
(*10)
Slew Rate
Gain Bandwidth Product
Phase Margin
Total Harmonic Distortion
Guaranteed limit
Temperature
BU7462 F/FVM
Symbol
Unit
Condition
BU7462S F/FVM
Range
Min.
Typ.
Max.
Vio
25℃
-
1
6
mV
-
Iio
25℃
-
1
-
pA
-
Ib
25℃
-
1
-
pA
-
25℃
-
300
700
RL=∞ All Op-Amps
IDD
μA
AV=0[dB],VIN=0.9[V]
Full range
-
-
900
VOH
25℃
VDD-0.1
-
-
V RL=10[kΩ]
VOL
25℃
-
-
VSS+0.1 V RL=10[kΩ]
AV
25℃
70
95
-
dB RL=10[kΩ]
Vicm
25℃
0
-
1.8
V VSS½VDD-1.2[V]
CMRR
25℃
45
60
-
dB
-
PSRR
25℃
60
80
-
dB
-
IOH
25℃
4
8
-
mA VDD-0.4[V]
IOL
25℃
6
12
-
mA VSS+0.4[V]
SR
25℃
-
1.0
-
V/μs CL=25[pF]
FT
25℃
-
1
-
MHz CL=25[pF], AV=40[dB]
θ
25℃
-
50°
-
-
CL=25[pF], AV=40[dB]
THD
25℃
-
0.05
-
% VOUT=1[Vp-p],f=1[kHz]
(*8) Absolute value
(*9) Full range： BU7461, BU7462：Ta=-40[℃] to +85[℃] BU7461S, BU7462S：Ta=-40[℃] to +105[℃]
(*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.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
5/32
2009.05 - Rev.A
Embedded System
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