Operational Amplifiers / Comparators
Ultra Low Power
CMOS Operational Amplifiers
BU7265G,BU7265SG,BU7205HFV,BU7205SHFV,BU7271G,BU7271SG,
BU7245HFV,BU7245SHFV,BU7411G,BU7411SG,BU7421G,BU7421SG,
BU7475HFV,BU7475SHFV
No.10049EAT19
●Description
Ultra Low Power CMOS Op-Amp BU7265/BU7205/BU7271/BU7245 family (Input-Output Full Swing) and BU7411 / BU7421
/ BU7475 (ground sense) are monolithic IC. Supply current is very small (BU7265/BU7411 family: 0.35[μA], BU7421 family:
8.5[μA], BU7271 family: 8.6[μA]), and VDD range is +1.6[V] ~ +5.5[V] (BU7411 family: single supply), so operable with low
voltage. It’s suitable for applications of portable equipments and battery movements.
●Features
1) Ultra Low Power
0.35[μA] : BU7265 family
: BU7411 family
8.5[μA] : BU7421 family
8.6[μA] : BU7271 family
2) High large signal voltage gain
3) Wide temperature range
-40[℃] ~ +85[℃]
(BU7265G,BU7271G,BU7411G,BU7421G)
(BU7205HFV,BU7245HFV,BU7475HFV)
-40[℃] ~ +105[℃]
(BU7265SG,BU7271SG,BU7411SG,BU7421SG)
(BU7205SHFV,BU7245SHFV,BU7475SHFV)
4) Low input bias current 1[pA] (Typ.)
5) Internal ESD protection
Human body model (HBM) ±4000 [V] (Typ.)
6) Internal phase compensation
7) Low operating supply voltage
+1.8[V] ~ +5.5[V] (single supply)
(BU7265 family, BU7271 family)
(BU7205 family, BU7245 family)
+1.7[V] ~ +5.5[V] (single supply)
(BU7421 family, BU7475 family)
+1.6[V] ~ +5.5[V] (single supply)
(BU7411 family)
Input-Output Full Swing
Ultra Low Power
Single
BU7265G
(BU7265SG: Operation guaranteed up to +105℃)
BU7205HFV
(BU7205SHFV: Operation guaranteed up to +105℃)
Low Power
Single
BU7271G
(BU7271SG: Operation guaranteed up to +105℃)
BU7245HFV
(BU7245SHFV: Operation guaranteed up to +105℃)
Ground Sense
Ultra Low Power
Low Power
Single
Single
BU7411G
(BU7411SG: Operation guaranteed up to +105℃)
BU7421G
(BU7421SG: Operation guaranteed up to +105℃)
BU7475HFV
(BU7475SHFV: Operation guaranteed up to +105℃)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/28
2010.12 - Rev.A
BU7265G,BU7265SG,BU7205HFV,BU7205SHFV,BU7271G,BU7271SG,BU7245HFV,BU7245SHFV,
BU7411G,BU7411SG,BU7421G,BU7421SG,BU7475HFV,BU7475SHFV
●Pin
Assignments
IN+
VSS
IN-
1
2
3
5 VDD
Technical Note
+
-
4
OUT
SSOP5
Input type
Package
SSOP5
BU7265G
BU7265SG
BU7271G
BU7271SG
HVSOF5
BU7205HFV
BU7205SHFV
BU7245HFV
BU7245SHFV
HVSOF5
Input type
Package
SSOP5
BU7411G
BU7411SG
BU7421G
BU7421SG
HVSOF5
Input-Output Full
Swing
Ground Sense
BU7475HFV
BU7475SHFV
●Absolute
Maximum Ratings(Ta=25[℃])
Ratings
BU7265SG, BU7411SG
BU7265G, BU7411G
BU7271SG, BU7421SG
BU7271G, BU7421G
BU7205SHFV,
BU7205HFV, BU7245HFV
BU7245SHFV
BU7475HFV
BU7475SHFV
+7
VDD-VSS
(VSS-0.3) ~ VDD+0.3
-40 ~ +85
-55 ~ +125
+125
-40 ~ +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 absolute 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 than VSS.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/28
2010.12 - Rev.A
BU7265G,BU7265SG,BU7205HFV,BU7205SHFV,BU7271G,BU7271SG,BU7245HFV,BU7245SHFV,
BU7411G,BU7411SG,BU7421G,BU7421SG,BU7475HFV,BU7475SHFV
●Electrical
characteristics: Input-Output Full Swing
○BU7265
family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
Parameter
Symbol
BU7265G, BU7265SG
Range
Min.
Typ.
Max.
Input Offset Voltage
(*2)
Input Offset Current
(*2)
Input Bias Current
(*2)
Supply Current
(*3)
High Level Output Voltage
Low Level Output Voltage
Large Signal 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 Band width
Phase Margin
(*2)
(*3)
(*4)
Technical Note
Unit
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
kHz
°
Condition
VDD=1.8 ~ 5.5[V],
VOUT=VDD/2
－
－
RL=∞, 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], AV=40[dB]
CL=25[pF], AV=40[dB]
Vio
Iio
Ib
IDD
VOH
VOL
AV
Vicm
CMRR
PSRR
IOH
IOL
SR
FT
θ
25℃
25℃
25℃
25℃
Full range
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
-
-
-
-
-
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
-
-
-
-
-
-
-
V/ms CL=25[pF]
Absolute value
Full range BU7265: Ta=-40[℃]~+85[℃] BU7265S: Ta=-40[℃]~+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.
○BU7271
family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
Parameter
Symbol
BU7271G, BU7271SG
Range
Min.
Typ.
Max.
Input Offset Voltage
(*5)
Input Offset Current
(*5)
Input Bias Current
(*5)
Supply Current
(*6)
High Level Output Voltage
Low Level Output Voltage
Large Signal 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 Band width
Phase Margin
(*5)
(*6)
(*7)
Unit
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
kHz
°
Condition
VDD=1.8 ~ 5.5[V],
VOUT=VDD/2
－
－
RL=∞, 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], AV=40[dB]
CL=25[pF], AV=40[dB]
Vio
Iio
Ib
IDD
VOH
VOL
AV
Vicm
CMRR
PSRR
IOH
IOL
SR
FT
θ
25℃
25℃
25℃
25℃
Full range
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
-
-
-
-
-
VDD-0.1
-
70
0
45
60
2
4
-
-
-
1
1
1
8.6
-
-
-
100
-
60
80
4
8
50
90
60
8
-
-
17
25
-
VSS+0.1
-
3
-
-
-
-
-
-
-
V/ms CL=25[pF]
Absolute value
Full range BU7271: Ta=-40[℃]~+85[℃] BU7271S: Ta=-40[℃]~+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
© 2010 ROHM Co., Ltd. All rights reserved.
3/28
2010.12 - Rev.A
BU7265G,BU7265SG,BU7205HFV,BU7205SHFV,BU7271G,BU7271SG,BU7245HFV,BU7245SHFV,
BU7411G,BU7411SG,BU7421G,BU7421SG,BU7475HFV,BU7475SHFV
Technical Note
○BU7205
family,(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
Parameter
Symbol
BU7205HFV, BU7205SHFV Unit
Range
Min.
Typ.
Max.
Input Offset Voltage
(*8)
Input Offset Current
(*8)
Input Bias Current
(*8)
Supply Current
(*9)
High Level Output Voltage
Low Level Output Voltage
Large Signal 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 Band width
Phase Margin
Vio
Iio
Ib
IDD
VOH
VOL
AV
Vicm
CMRR
PSRR
IOH
IOL
SR
FT
θ
25℃
25℃
25℃
25℃
Full range
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
-
-
-
-
-
VDD-0.1
-
60
0
45
60
0.5
1
-
-
-
1
1
1
0.4
-
-
-
95
-
60
80
1.2
2
2.5
2.5
60
9.5
-
-
0.95
1.2
-
VSS+0.1
-
3
-
-
-
-
-
-
-
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
kHz
°
Condition
VDD=1.8 ~ 5.5[V],
VOUT=VDD/2
－
－
RL=∞, 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], AV=40[dB]
CL=25[pF], AV=40[dB]
V/ms CL=25[pF]
(*8) Absolute value
(*9) Full range BU7205: Ta=-40[℃]~+85[℃] BU7205S: Ta=-40[℃]~+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.
○BU7245
family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
Parameter
Symbol
BU7245HFV, BU7245SHFV Unit
Range
Min.
Typ.
Max.
Input Offset Voltage
(*11)
Input Offset Current
(*11)
Input Bias Current
(*11)
Supply Current
(*12)
High Level Output Voltage
Low Level Output Voltage
Large Signal Voltage Gain
Input Common-mode Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(*13)
Output Sink Current
(*13)
Slew Rate
Gain Band width
Phase Margin
Vio
Iio
Ib
IDD
VOH
VOL
AV
Vicm
CMRR
PSRR
IOH
IOL
SR
FT
θ
25℃
25℃
25℃
25℃
Full range
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
-
-
-
-
-
VDD-0.1
-
60
0
45
60
2
4
-
-
-
1
1
1
5.0
-
-
-
95
-
60
80
4
8
35
70
60
8.5
-
-
12
20
-
VSS+0.1
-
3
-
-
-
-
-
-
-
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
kHz
°
Condition
VDD=1.8 ~ 5.5[V],
VOUT=VDD/2
－
－
RL=∞, 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], AV=40[dB]
CL=25[pF], AV=40[dB]
V/ms CL=25[pF]
(*11) Absolute value
(*12) Full range BU7245: Ta=-40[℃]~+85[℃] BU7245S: Ta=-40[℃]~+105[℃]
(*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.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
4/28
2010.12 - Rev.A
BU7265G,BU7265SG,BU7205HFV,BU7205SHFV,BU7271G,BU7271SG,BU7245HFV,BU7245SHFV,
BU7411G,BU7411SG,BU7421G,BU7421SG,BU7475HFV,BU7475SHFV
●Electrical
characteristics: Ground Sense
○BU7411
family,(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
Parameter
Symbol
BU7411G, BU7411SG
Range
Min.
Typ.
Max.
Input Offset Voltage
(*14)
Input Offset Current
(*14)
Input Bias Current
(*14)
Supply Current
(*15)
High Level Output Voltage
Low Level Output Voltage
Large Signal Voltage Gain
Input Common-mode Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(*16)
Output Sink Current
(*16)
Slew Rate
Gain Band width
Phase Margin
Vio
Iio
Ib
IDD
VOH
VOL
AV
Vicm
CMRR
PSRR
IOH
IOL
SR
FT
θ
25℃
25℃
25℃
25℃
Full range
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
-
-
-
-
-
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
-
-
0.8
1.3
-
VSS+0.1
-
2
-
-
-
-
-
-
-
Technical Note
Unit
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
kHz
°
Condition
VDD=1.6 ~ 5.5[V],
VOUT=VDD/2
－
－
RL=∞, AV=0[dB],
VIN=1.0[V]
RL=10[kΩ]
RL=10[kΩ]
RL=10[kΩ]
VSS ~ VDD-1.0[V]
－
－
VDD-0.4[V]
VSS+0.4[V]
CL=25[pF], AV=40[dB]
CL=25[pF], AV=40[dB]
V/ms CL=25[pF]
(*14) Absolute value
(*15) Full range BU7411: Ta=-40[℃]~+85[℃] BU7411S: Ta=-40[℃]~+105[℃]
(*16) 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.
○BU7421
family (Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
Parameter
Symbol
BU7421G, BU7421SG
Range
Min.
Typ.
Max.
Input Offset Voltage
(*17)
Input Offset Current
(*17)
Input Bias Current
(*17)
Supply Current
(*18)
High Level Output Voltage
Low Level Output Voltage
Large Signal Voltage Gain
Input Common-mode Voltage Range
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Output Source Current
(*19)
Output Sink Current
(*19)
Slew Rate
Gain Band width
Phase Margin
Vio
Iio
Ib
IDD
VOH
VOL
AV
Vicm
CMRR
PSRR
IOH
IOL
SR
FT
θ
25℃
25℃
25℃
25℃
Full range
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
25℃
-
-
-
-
-
VDD-0.1
-
70
0
45
60
2
4
-
-
-
1
1
1
8.5
-
-
-
100
-
60
80
4
8
50
90
60
6
-
-
17
25
-
VSS+0.1
-
1.8
-
-
-
-
-
-
-
Unit
mV
pA
pA
μA
V
V
dB
V
dB
dB
mA
mA
kHz
°
Condition
VDD=1.7 ~ 5.5[V],
VOUT=VDD/2
－
－
RL=∞, AV=0[dB],
VIN=0.9[V]
RL=10[kΩ]
RL=10[kΩ]
RL=10[kΩ]
VSS ~ VDD-1.2[V]
－
－
VDD-0.4[V]
VSS+0.4[V]
CL=25[pF], AV=40[dB]
CL=25[pF], AV=40[dB]
V/ms CL=25[pF]
(*17) Absolute value
(*18) Full range BU7421: Ta=-40[℃]~+85[℃] BU7421S: Ta=-40[℃]~+105[℃]
(*19) 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
© 2010 ROHM Co., Ltd. All rights reserved.
5/28
2010.12 - Rev.A
京公网安备 11010802033920号
EEWORLD
