Rohm BU7481G Low voltage with high speed cmos op-amp integrates one independent output full swing op-amps and phase compensation capacitors on a single chip. Datasheet

Operational Amplifiers / Comparators
High Speed with Low Voltage
CMOS Operational Amplifiers
Input-Output Full Swing
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV
Ground sense
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG
BU7485G,BU7485SG,BU5281G,BU5281SG
No.10049EAT20
●Description
Low Voltage with High Speed CMOS Op-Amp integrates one independent output full swing Op-Amps and phase
compensation capacitors on a single chip. Especially, this series is operable with low voltage, low supply current, high speed
and low input bias current.
・Input-Output Full Swing
BU7291 family, BU7255 family
・Ground sense
BU7495 family, BU7481 family,
BU7485 family, BU5281 family
High Speed
Input-Output Full Swing
Ground Sense
●Features
1) Low operating supply voltage
+2.4 [V] ~ +5.5 [V] (single supply): BU7291 family
BU7255 family
+1.8 [V] ~ +5.5 [V] (single supply): BU7495 family
BU7481 family
BU5281 family
+3.0 [V] ~ +5.5 [V] (single supply): BU7485 family
2) High large signal voltage gain
3) Internal ESD protection
Human body model (HBM) ±4000 [V] (Typ.)
4) Low input bias current 1[pA] (Typ.)
Single
BU7291G
Single
BU7255HFV
Single
BU7481G
Single
BU7485G
Single
BU5281G
Single
BU7495HFV
(BU7291SG：Operation guaranteed up to +105℃)
(BU7255SHFV：Operation guaranteed up to +105℃)
(BU7481SG：Operation guaranteed up to +105℃)
(BU7485SG：Operation guaranteed up to +105℃)
(BU5281SG：Operation guaranteed up to +105℃)
(BU7495SHFV：Operation guaranteed up to +105℃)
5) High slew rate
3.0 [V/μs]: BU7291
3.4 [V/μs]: BU7255
5.0 [V/μs]: BU7495
3.2 [V/μs]: BU7481
2.0 [V/μs]: BU5281
10.0 [V/μs]: BU7485
family
family
family
family
family
family
●Pin Assignments
+IN 1
VSS 2
5 VDD
+
-
-IN 3
4 OUT
HVSOF5
SSOP5
BU7291G
BU7485G
BU7481G
BU5281G
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© 2010 ROHM Co., Ltd. All rights reserved.
BU7291SG
BU7485SG
BU7481SG
BU5281SG
BU7255HFV BU7255SHFV
BU7495HFV BU7495SHFV
1/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Absolute Maximum Ratings(Ta=25[℃])
Parameter
Supply Voltage
Symbol
Ratings
BU7291SG, BU7255SHFV
BU7291G, BU7255HFV
BU7495SHFV, BU7481SG
BU7495HFV, BU7481G
BU7485SG, BU5281SG
BU7485G, BU5281G
Unit
VDD - VSS
+7
V
Vid
VDD - VSS
V
Input Common-mode
Voltage Range
Vicm
(VSS - 0.3) ~ (VDD + 0.3)
V
Operating Temperature
Topr
Storage Temperature
Tstg
- 55 ~ +125
℃
Maximum
Junction Temperature
Tjmax
+125
℃
Differential Input Voltage (*1)
- 40 ~ +85
℃
- 40 ~ +105
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.
●Electrical characteristics: Input-Output Full Swing
○BU7291 family(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
Parameter
Symbol
BU7291G, BU7291SG
Range
Min.
Typ.
Max.
Unit
Condition
Input Offset Voltage (*2)
Vio
25℃
－
1
9
mV
－
Input Offset Current (*2)
Iio
25℃
－
1
－
pA
－
Input Bias Current (*2)
Ib
25℃
－
1
－
pA
－
25℃
－
470
800
Full range
-
－
1100
VOH
25℃
VDD-0.1
－
Low Level Output Voltage
VOL
25℃
－
Large Signal Voltage Gain
AV
25℃
Vicm
Common-mode Rejection Ratio
Power Supply Rejection Ratio
μA
RL=∞ All Op-Amps
AV=0[dB],VIN=1.5[V]
－
V
RL=10[kΩ]
－
VSS+0.1
V
RL=10[kΩ]
70
105
－
dB
RL=10[kΩ]
25℃
0
－
3
V
VSS ~ VDD
CMRR
25℃
40
60
－
dB
－
PSRR
25℃
45
80
－
dB
－
Output Source Current (*4)
IOH
25℃
5
8
－
mA
VDD-0.4[V]
Output Sink Current (*4)
IOL
25℃
9
16
－
mA
VSS+0.4[V]
Slew Rate
SR
25℃
－
3.0
－
V/μs
CL=25[pF]
Gain Band width
FT
25℃
－
2.8
－
MHz
CL=25[pF], AV=40[dB]
θ
25℃
－
50
－
°
CL=25[pF], AV=40[dB]
THD
25℃
－
0.03
－
%
VOUT=0.8[Vp-p],f=1[kHz]
Supply Current (*3)
IDD
High Level Output Voltage
Input Common-mode
Voltage Range
Phase Margin
Total Harmonic Distortion
(*2)
(*3)
(*4)
Absolute value
Full range BU7291: Ta=-40[℃]~+85[℃] BU7291S: 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.
2/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
○BU7255(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
BU7255HFV, BU7255SHFV
Parameter
Symbol
Range
Min.
Typ.
Max.
Technical Note
Unit
Condition
Input Offset Voltage (*5)
Vio
25℃
－
1
9
mV
－
Input Offset Current (*5)
Iio
25℃
－
1
－
pA
－
Input Bias Current (*5)
Ib
25℃
－
1
－
pA
－
25℃
－
540
900
Full range
－
－
1200
μA
RL=∞ All Op-Amps
AV=0[dB],VIN=1.5[V]
－
V
RL=10[kΩ]
－
VSS+0.1
V
RL=10[kΩ]
60
105
－
dB
RL=10[kΩ]
25℃
0
-
3
V
VSS ~ VDD
CMRR
25℃
40
60
－
dB
－
PSRR
25℃
45
80
－
dB
－
Output Source Current (*7)
IOH
25℃
2
4
－
mA
VDD - 0.4[V]
Output Sink Current (*7)
IOL
25℃
4
8
－
mA
VSS + 0.4[V]
Slew Rate
SR
25℃
－
3.4
－
V/μs
CL=25[pF]
Gain Band width
FT
25℃
－
4
－
MHz
CL=25[pF], AV=40[dB]
θ
25℃
－
40
－
°
CL=25[pF], AV=40[dB]
Supply Current (*6)
IDD
High Level Output Voltage
VOH
25℃
VDD-0.1
－
Low Level Output Voltage
VOL
25℃
－
Large Signal Voltage Gain
AV
25℃
Vicm
Common-mode Rejection Ratio
Power Supply Rejection Ratio
Input Common-mode
Voltage Range
Phase Margin
(*5)
(*6)
(*7)
Absolute value
Full range BU7255: Ta=-40[℃]~+85[℃] BU7255S: 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.
3/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
○BU7495 family(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
BU7495HFV, BU7495SHFV
Parameter
Symbol
Range
Min.
Typ.
Max.
Technical Note
Unit
Condition
Input Offset Voltage (*8)
Vio
25℃
－
1
6
mV
－
Input Offset Current (*8)
Iio
25℃
－
1
－
pA
－
Input Bias Current (*8)
Ib
25℃
－
1
－
pA
－
25℃
－
650
1150
Full range
－
－
1350
VOH
25℃
VDD-0.1
－
Low Level Output Voltage
VOL
25℃
-
Large Signal Voltage Gain
AV
25℃
Vicm
Common-mode Rejection Ratio
Power Supply Rejection Ratio
μA
RL=∞ All Op-Amps
AV=0[dB],VIN=0.9[V]
－
V
RL=10[kΩ]
-
VSS+0.1
V
RL=10[kΩ]
60
100
－
dB
RL=10[kΩ]
25℃
0
-
1.8
V
VSS ~ VDD-1.2[V]
CMRR
25℃
45
60
－
dB
－
PSRR
25℃
60
80
－
dB
－
Output Source Current (*10)
IOH
25℃
4
7
－
mA
VDD - 0.4[V]
Output Sink Current (*10)
IOL
25℃
9
14
－
mA
VSS + 0.4[V]
Slew Rate
SR
25℃
－
5.0
－
V/μs
CL=25[pF]
Gain Band width
FT
25℃
－
4
－
MHz
CL=25[pF], AV=40[dB]
θ
25℃
－
50
－
°
CL=25[pF], AV=40[dB]
THD
25℃
－
0.03
－
%
VOUT=0.8[Vp-p], f=1[kHz]
Supply Current (*9)
IDD
High Level Output Voltage
Input Common-mode
Voltage Range
Phase Margin
Total Harmonic Distortion
(*8) Absolute value
(*9) Full range BU7495: Ta=-40[℃]~+85[℃] BU7495S: 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
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
4/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
○BU7481 family(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
BU7481G, BU7481SG
Parameter
Symbol
Range
Min.
Typ.
Max.
Technical Note
Unit
Condition
Input Offset Voltage (*11)
Vio
25℃
－
1
8
mV
－
Input Offset Current (*11)
Iio
25℃
－
1
－
pA
－
Input Bias Current (*11)
Ib
25℃
－
1
－
pA
－
25℃
－
420
750
Full range
－
－
900
VOH
25℃
VDD-0.1
－
Low Level Output Voltage
VOL
25℃
－
Large Signal Voltage Gain
AV
25℃
Vicm
Common-mode Rejection Ratio
Power Supply Rejection Ratio
μA
RL=∞ All Op-Amps
AV=0[dB],VIN=0.9[V]
－
V
RL=10[kΩ]
－
VSS+0.1
V
RL=10[kΩ]
70
105
－
dB
RL=10[kΩ]
25℃
0
－
1.8
V
VSS ~ VDD-1.2[V]
CMRR
25℃
45
60
－
dB
－
PSRR
25℃
60
80
－
dB
－
Output Source Current (*13)
IOH
25℃
5
8
－
mA
VDD - 0.4[V]
Output Sink Current (*13)
IOL
25℃
9
16
－
mA
VSS + 0.4[V]
Slew Rate
SR
25℃
－
3.2
－
V/μs
CL=25[pF]
Gain Band width
FT
25℃
－
2.8
－
MHz
CL=25[pF], AV=40[dB]
θ
25℃
－
50
－
°
CL=25[pF], AV=40[dB]
THD
25℃
－
0.03
－
%
VOUT=0.8[Vp-p], f=1[kHz]
Supply Current (*12)
IDD
High Level Output Voltage
Input Common-mode
Voltage Range
Phase Margin
Total Harmonic Distortion
(*11) Absolute value
(*12) Full range BU7481: Ta=-40[℃]~+85[℃] BU7481S: 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.
5/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
○BU7485 family(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
BU7485G, BU7485SG
Parameter
Symbol
Range
Min.
Typ.
Max.
Technical Note
Unit
Condition
Input Offset Voltage (*14)
Vio
25℃
－
1
9.5
mV
－
Input Offset Current (*14)
Iio
25℃
－
1
－
pA
－
Input Bias Current (*14)
Ib
25℃
－
1
－
pA
－
25℃
－
1500
2000
Full range
－
－
2400
VOH
25℃
VDD-0.1
－
Low Level Output Voltage
VOL
25℃
－
Large Signal Voltage Gain
AV
25℃
Vicm
Common-mode Rejection Ratio
Power Supply Rejection Ratio
μA
RL=∞ All Op-Amps
AV=0[dB],VIN=0.8[V]
－
V
RL=10[kΩ]
－
VSS+0.1
V
RL=10[kΩ]
70
105
－
dB
RL=10[kΩ]
25℃
0
－
1.6
V
VSS ~ VDD-1.4[V]
CMRR
25℃
45
60
－
dB
－
PSRR
25℃
60
80
－
dB
－
Output Source Current (*16)
IOH
25℃
4
8
－
mA
VDD-0.4[V]
Output Sink Current (*16)
IOL
25℃
7
12
－
mA
VSS + 0.4[V]
Slew Rate
SR
25℃
－
10
－
V/μs
CL=25[pF]
Gain Band width
FT
25℃
－
10
－
MHz
CL=25[pF], AV=40[dB]
θ
25℃
－
50
－
°
CL=25[pF], AV=40[dB]
THD
25℃
－
0.03
－
%
VOUT=0.7[Vp-p], f=1[kHz]
Supply Current (*15)
IDD
High Level Output Voltage
Input Common-mode
Voltage Range
Phase Margin
Total Harmonic Distortion
(*14) Absolute value
(*15) Full range BU7485: Ta=-40[℃]~+85[℃] BU7485S: 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.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
6/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
○BU5281 family(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Limits
Temperature
BU5281G, BU5281SG
Parameter
Symbol
Range
Min.
Typ.
Max.
Input Offset Voltage (*17)
Technical Note
Unit
Condition
Vio
25℃
－
0.1
2.5
mV
－
ΔVio/ΔT
-
－
0.8
－
μV/℃
－
Input Offset Current (*17)
Iio
25℃
－
1
－
pA
－
Input Bias Current (*17)
Ib
25℃
－
1
－
pA
－
Input Offset Voltage drift (*17)
25℃
－
750
1000
Full range
－
－
1200
VOH
25℃
VDD-0.1
－
Low Level Output Voltage
VOL
25℃
－
Large Signal Voltage Gain
AV
25℃
Vicm
Common-mode Rejection Ratio
Power Supply Rejection Ratio
μA
RL=∞ All Op-Amps
AV=0[dB],VIN=0.9[V]
－
V
RL=10[kΩ]
－
VSS+0.1
V
RL=10[kΩ]
70
110
－
dB
RL=10[kΩ]
25℃
0
－
1.8
V
VSS ~ VDD - 1.2[V]
CMRR
25℃
45
60
－
dB
－
PSRR
25℃
60
80
－
dB
－
Output Source Current (*19)
IOH
25℃
5
8
－
mA
VDD-0.4[V]
Output Sink Current (*19)
IOL
25℃
10
16
－
mA
VSS+0.4[V]
Slew Rate
SR
25℃
－
2.0
－
V/μs
CL=25[pF]
Gain Band width
FT
25℃
－
3
－
MHz
CL=25[pF], AV=40[dB]
θ
25℃
－
40
－
°
CL=25[pF], AV=40[dB]
－
18
－
nV/(Hz)
－
3.2
－
μVrms
－
0.003
－
%
Supply Current (*18)
IDD
High Level Output Voltage
Input Common-mode
Voltage Range
Phase Margin
Input Referred Noise Voltage
Total Harmonic Distortion
Vin
THD
1/2
AV=40[dB], f=1[kHz]
25℃
25℃
AV=40[dB], DINAUDIO
VOUT=0.4[Vp-p], f=1[kHz]
(*17) Absolute value
(*18) Full range BU5281: Ta=-40[℃]~+85[℃] BU5281S: 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.
7/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7291 family)
BU7291 family
BU7291G
400
200
0
85 100
50
AMBIENT TEMPERATURE [℃]
800
600
BU7291SG
400
200
0
150
0
Fig.1
Derating curve
OUTPUT VOLTAGE HIGH [V]
600
3.0V
2.4V
200
2
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
4
85℃
25℃
3
-40℃
2
1
25℃
85℃
105℃
5
3
4
5
SUPPLY VOLTAGE [ V]
5
5.5V
2.4V
5
2.4V
0
0
-40℃
25℃
30
20
105℃
10
30
60
90
120
60
25℃
40
85℃
105℃
20
AMBIENT TEMPERATURE [℃]
Fig.10
Output Source Current – Ambient Temperature
(VOUT=VDD-0.4[V])
0.0
85℃
0
0.5
1.0
1.5
2.0
2.5
O UTPUT VOLTAGE [V]
0.5
1
1.5
2
2.5
3
OUTPUT VOLTAGE [V]
0
-30
40
120
Fig.9
Output Source Current
– Output Voltage (VDD=3[V])
BU7291 family
80
OUTPUT SINK CURRENT [mA]
10
120
BU7291 family
50
3.0
Fig.11
Output Sink Current – Output Voltage
(VDD=3[V])
BU7291 family
50
-40℃
3.0V
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
5.5V
15
-60
1
Fig.8
Output Voltage Low
– Ambient Temperature (RL=10[kΩ])
BU7291 family
20
2.4V
2
-60
BU7291 family
3.0V
0
-60
Fig.7
Output Voltage Low
– Supply Voltage (RL=10[kΩ])
3.0V
3
Fig.6
Output Voltage High
– Ambient Temperature (RL=10[kΩ])
10
6
5.5V
4
6
15
0
2
3
4
5
SUPPLY VOLTAGE [V]
20
OUTPUT VO LTAGE LOW [mV]
10
-40℃
2
Fig.5
Output Voltage High
– Supply Voltage (RL=10[kΩ])
15
5
0
1
BU7291 family
20
6
BU7291 family
6
105℃
120
3
4
5
SUPPLY VOLTAGE [V]
Fig.3
Supply Current – Supply Voltage
5
Fig.4
Supply Current
– Ambient Temperature
OUTPUT VOLTAGE LOW [mV]
0
150
OUTPUT SOURCE CURRENT [mA]
-60
-40℃
200
0
0
OUTPUT SOURCE CURRENT [mA]
25℃
OUTPUT SINK CURRENT [mA]
SUPPLY CURRENT [μA]
5.5V
400
400
BU7291 family
6
800
105℃
600
Fig.2
Derating curve
BU7291 family
1000
50
100105
AMBIENT TEMPERATURE [ ℃]
85℃
OUTPUT VOLTAGE HIGH [V]
0
BU7291 family
1000
SUPPLY CURRENT [μA]
600
BU7291 family
800
POWER DISSIPATION [mW] .
POWER DISSIPATION [mW] .
800
40
30
5.5V
3.0V
20
10
0
-60
2.4V
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
Fig.12
Output Sink Current – Ambient Temperature
(VOUT=VSS+0.4[V])
(*)The above data is ability value of sample, it is not guaranteed.BU7291G: -40[℃] ~ +85[℃] BU7291SG: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
8/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7291 family)
25℃
-40℃
5.0
INPUT O FFSET VOLTAGE [ mV]
2.5
0.0
85℃
105℃
-2.5
-5.0
-7.5
7.5
5.0
0.0
-2.5
3.0V
-5.0
-7.5
4
5
6
SUPPLY VOLTAGE [V]
Fig.13
Input Offset Voltage – Supply Voltage
(Vicm=VDD, VOUT=1.5[V])
105℃
85℃
120
100
25℃
-40℃
80
60
2
3
4
5
SUPPLY VOLTAGE [V]
140
5.5V
120
100
2.4V
80
60
3.0V
40
20
0
GAIN[dB]
3.0V
2.4V
2.0
BU7291 family
1.0
40
20
0
-60
-30
0
30
60
90
60
-40℃
120
AMBIENT TEMPERATURE [℃]
Fig.22
Slew Rate H-L – Ambient Temperature
25℃
40
20
0
3
4
5
SUPPLY VOLTAGE [V]
6
BU7291 family
4
5.5V
3
2.4V
2
3.0V
1
0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
BU7291 family
Phase
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [ ℃]
120
Fig.21
Slew Rate L-H
– Ambient Temperature
200
150
60
Gain
100
40
50
20
0.0
105℃
85℃
80
5
60
80
3.0
100
Fig.18
Common Mode Rejection Ratio
– Supply Voltage (VDD=3[V])
Fig.20
Power Supply Rejection Ratio
– Ambient Temperature
5.5V
4
BU7291 family
2
80
100
1
2
3
INPUT VOLTAGE [V]
120
120
100
-60
0
Fig.15
Input Offset Voltage – Input Voltage
(VDD=3[V])
120
120
BU7291 family
4.0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
140
Fig.19
Common Mode Rejection Ratio
– Ambient Temperature
5.0
3.0V
80
-60
POWER SUPPLY REJECTION RATIO [dB]
COMMON MODE REJECTION RATIO [dB]
5.5V
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
-10
Fig.17
Large Signal Voltage Gain
– Ambient Temperature
100
-60
-5
-1
60
6
BU7291 family
2.4V
25℃
120
BU7291 family
Fig.16
Large Signal Voltage Gain
– Supply Voltage
120
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
160
LARGE SIGNAL VOLTAG E GAI N [dB]
140
105℃
0
Fig.14
Input Offset Voltage – Ambient Temperature
(Vicm=VDD, VOUT=1.5[V])
BU7291 family
160
-40℃
85℃
5
-15
-60
COMMON MODE REJECTION RATIO [dB]
3
10
SLEW RATE L-H [V/μs]
2
SLEW RATE H-L [V/μs]
2.4V
-10.0
-10.0
LARGE SIGNAL VOLTAGE GAIN [dB]
5.5V
2.5
BU7291 family
15
PHASE [deg]
INPUT OFFSET VOLTAGE [mV]
7.5
BU7291 family
10.0
INPUT OFFSET VO LTAGE [mV]
BU7291 family
10.0
0
0
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 1.E+08
FREQUENCY [Hz]
Fig.23
Voltage Gain－Frequency
(*)The above data is ability value of sample, it is not guaranteed. BU7291G: -40[℃] ~ +85[℃] BU7291SG: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
9/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7255 family)
BU7255
BU7255HFV
600
400
200
BU7255SHFV
600
400
200
85 100
50
AMBIENT TEMPERATURE [℃]
50
100105
AMBIENT TEMPERATURE [℃]
0
5.5V
600
2.4V
300
5
25℃
3
-40℃
2
1
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
85℃
10
-40℃
3
4
5
SUPPLY VOLTAGE [V]
105℃
25℃
5
2
3
4
5
SUPPLY VOLTAGE [V]
5.5V
10
2.4V
5
3.0V
1
-30
0
30
60
90
AMBI ENT TEMPERATURE [℃]
120
BU7255 family
20
-40℃
25℃
15
10
105℃
85℃
5
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
0
120
Fig.31
Output Voltage Low
– Ambient Temperature (RL=10[kΩ])
BU7255 family
20
2.4V
2
0
-60
Fig.30
Output Voltage Low
– Supply Voltage (RL=10[kΩ])
3.0V
3
Fig.29
Output Voltage High
– Ambient Temperature (RL=10[kΩ])
15
6
5.5V
4
-60
0
0
5
6
BU7255 family
20
OUTPUT VOLTAGE LOW [mV]
15
6
BU7255 family
6
Fig.28
Output Voltage High
– Supply Voltage (RL=10[kΩ])
BU7255 family
20
3
4
5
SUPPLY VOLTAGE [V]
0
2
120
Fig.27
Supply Current
– Ambient Temperature
BU7255 family
40
0.5
1
1. 5
2
2.5
OUTPUT VOLTAGE [V]
3
Fig.32
Output Source Current
– Output Voltage (VDD=3[V])
BU7255 family
40
OUTPUT SINK CURRENT [mA]
-40℃
15
5.5V
10
3.0V
5
0
-60
30
25℃
20
105℃
85℃
10
30
5.5V
20
3.0V
10
2.4V
2.4V
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
OUTPUT SINK CURRENT [mA]
OUTPUT VOLTAGE LOW [ mV]
105℃
85℃
4
25℃
Fig.26
Supply Current – Supply Voltage
OUTPUT SOURCE CURRENT [mA]
-60
OUTPUT SOURCE CURRENT [mA]
2
0
0
-40℃
0
150
BU7255 family
6
OUTPUT VOLTAGE HIGH [ V]
SUPPLY CURRENT [μA]
1200
3.0V
500
Fig.25
Derating curve
BU7255 family
900
750
0
150
85℃
250
Fig.24
Derating curve
1500
105℃
1000
OUTPUT VOLTAG E HIGH [V]
0
1250
800
0
BU7255 family
1500
SUPPLY CURRENT [μA]
800
BU7255 family
1000
POWER DISSIPATION [ mW] .
POWER DISSIPATION [mW] .
1000
0
120
Fig.33
Output Source Current –Ambient Temperature
(VOUT=VDD-0.4[V])
0.0
0.5
1.0
1.5
2.0
2.5
OUTPUT VOLTAGE [ V]
3.0
Fig.34
Output Sink Current – Output Voltage
(VDD=3[V])
0
-60
-30
0
30
60
90
120
AMBIENT TEMPERATURE[℃]
Fig.35
Output Sink Current – Ambient Temperature
(VOUT=VSS+0.4[V])
(*)The above data is ability value of sample, it is not guaranteed. BU7255HFV: -40[℃] ~ +85[℃] BU7255SHFV: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
10/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7255 family)
BU7255 family
INPUT O FFSET VOLTAGE [mV]
5. 0
-40℃
2. 5
25℃
0. 0
-2. 5
105℃
-5. 0
85℃
-7. 5
-10. 0
7.5
5.0
5.5V
2.5
0.0
-2.5
3.0V
-7.5
4
5
6
Fig.36
Input Offset Voltage – Supply Voltage
(Vicm=VDD, VOUT=1.5V])
100
85℃
-40℃
25℃
105℃
80
60
40
20
3
4
5
SUPPLY VOLTAGE [V]
140
80
60
40
2.4V
20
0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
100
2.4V
3.0V
80
100
60
GAIN [dB]
3.0V
-40℃
25℃
40
20
0
3
4
5
SUPPLY VOLTAGE [V]
6
Fig.41
Common Mode Rejection Ratio
– Supply Voltage (VDD=3[V])
BU7255 family
BU7255 family
8
80
60
40
6
5.5V
4
3.0V
2.4V
2
20
0
0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
BU7255 family
Phase
80
4.0
105℃
85℃
80
2
100
100
5.5V
6.0
4
BU7255 family
120
120
-60
Fig.43
Power Supply Rejection Ratio
– Ambient Temperature
BU7255 family
1
2
3
INPUT VOLTAGE [V]
120
Fig.42
Common Mode Rejection Ratio
– Ambient Temperature
8.0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
140
-60
120
0
Fig.38
Input Offset Voltage – Input Voltage
(VDD=3[V])
120
-60
POWER SUPPLY REJECTI ON RATIO [dB]
5.5V
105℃
-10
Fig.40
Large Signal Voltage Gain
– Ambient Temperature
100
-40℃
-5
-1
5.5V
6
BU7255 family
3.0V
0
BU7255 family
Fig.39
Large Signal Voltage Gain
– Supply Voltage
120
85℃
SLEW RATE L-H [V/μs]
2
25℃
120
60
0
COMMON MODE REJECTI ON RATIO [dB]
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
160
LARGE SIGNAL VOLTAGE GAIN [dB]
LARGE SIGNAL VOLTAGE GAIN [dB]
120
5
Fig.37
Input Offset Voltage – Ambient Temperature
(Vicm=VDD, VOUT=1.5[V])
BU7255 family
140
10
-15
-60
COMMON MODE REJECTION RATIO [dB]
3
SUPPLY VOLTAGE[V]
SLEW RATE H-L [V/μs]
2.4V
-5.0
-10.0
2
BU7255 family
15
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
Fig.44
Slew Rate L-H
– Ambient Temperature
200
150
60
Gain
100
40
PHASE [deg]
INPUT OFFSET VOLTAGE [mV]
7. 5
BU7255 family
10.0
INPUT OFFSET VOLTAGE [mV]
10. 0
2.4V
2.0
50
20
0.0
0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
Fig.45
Slew Rate H-L – Ambient Temperature
0
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 1.E+08
FREQUENCY [Hz]
Fig.46
Voltage Gain－Frequency
(*)The above data is ability value of sample, it is not guaranteed. BU7255HFV: -40[℃] ~ +85[℃] BU7255SHFV: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
11/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7495 family)
BU7495 family
BU7495 family
1000
POWER DISSIPATION [mW] .
800
BU7495HFV
600
400
200
800
BU7495SHFV
600
400
200
BU7495 family
2
SUPPLY CURRENT [mA]
POWER DISSIPATION [ mW] .
1000
1.5
1
105℃
85℃
25℃
0.5
-40℃
85 100
50
AMBIENT TEMPERATURE [℃]
150
0
105
50
100
AMBIENT TEMPERATURE [℃]
Fig.47
Derating curve
5.5V
0. 5
1.8V
0
-60
5
OUTPUT VOLTAGE HI GH [V]
SUPPLY CURRENT [mA]
1. 5
105℃
4
85℃
3
25℃
-40℃
2
1
120
5
-40℃
2
5
1.8V
0
-60
5.5V
5
1.8V
0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
0
30
60
90
120
AMBIENT TEMPERATURE [℃]
Fig.56
Output Source Current – Ambient Temperature
(VOUT=VDD-0.4[V])
120
BU7495 family
30
-40℃
25℃
20
10
105℃
0
85℃
50
-40℃
25℃
40
30
105℃
20
85℃
10
0.5
1. 0
1.5
2.0
2.5
3.0
OUTPUT VOLTAGE [V]
Fig.57
Output Sink Current – Output Voltage
(VDD=3[V])
0.5
1
1.5
2
2.5
OUTPUT VOLTAGE [V]
3
Fig.55
Output Source Current – Output
Voltage (VDD=3[V])
BU7495 family
0.0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
40
120
0
-30
1
0
60
OUTPUT SINK CURRENT [mA]
OUTPUT SOURCE CURRENT [mA]
15
3.0V
1.8V
2
Fig.54
Output Voltage Low – Ambient
Temperature (RL=10[kΩ])
BU7495 family
10
5.5V
3.0V
Fig.53
Output Voltage Low
– Supply Voltage (RL=10[kΩ])
20
3.0V
3
Fig.52
Output Voltage High
– Ambient Temperature (RL=10[kΩ])
10
6
5.5V
4
-60
BU7495 family
25℃
3
4
5
SUPPLY VOLTAGE [V]
BU7495 family
5
6
15
0
1
3
4
5
SUPPLY VOLTAGE [V]
20
OUTPUT VOLTAGE LOW [mV]
105℃
85℃
2
Fig.51
Output Voltage High
– Supply Voltage (RL=10[kΩ])
10
6
0
1
BU7495 family
15
3
4
5
SUPPLY VOLTAGE [V]
6
0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
Fig.50
Supply Current
– Ambient Temperature
OUTPUT VOLTAGE LOW [mV]
BU7495 family
6
2
Fig.49
Supply Current – Supply Voltage
OUTPUT VOLTAG E HIGH [V]
BU7495 family
3.0V
1
150
Fig.48
Derating curve
2
1
0
OUTPUT SOURCE CURRENT [mA]
0
0
BU7495 family
40
OUTPUT SINK CURRENT [mA]
0
5.5V
30
3.0V
20
1.8V
10
0
-60
-30
0
30
60
90
120
AMBIENT TEMPERATURE[℃]
Fig.58
Output Sink Current – Ambient Temperature
(VOUT=VSS+0.4[V])
(*)The above data is ability value of sample, it is not guaranteed. BU7495HFV: -40[℃] ~ +85[℃] BU7495SHFV: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
12/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7495 family)
BU7495 family
5.0
105℃
2.5
25℃
0.0
-2.5
-40℃
85℃
-5.0
-7.5
5.0
2.5
0.0
1.8V
3.0V
-5.0
-7.5
-10.0
-10.0
2
3
4
5
INPUT VOLTAGE [V]
-60
6
Fig.59
Input Offset Voltage – Supply Voltage
(Vicm=VDD-1.2[V], VOUT=1.5[V])
85℃
105℃
120
100
-40℃
80
25℃
60
40
20
2
3
4
5
SUPPLY VOLTAGE [V]
100
3.0V
60
1.8V
40
20
0
-60
-30
0
30
60
90
AMBI ENT TEMPERATURE [ ℃]
40
20
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
1
2
INPUT VOLTAGE [V]
3
BU7495 family
85℃
100
105℃
80
-40℃
25℃
60
40
20
120
0
1
2
3
4
5
SUPPLY VOLTAGE [V]
6
Fig.64
Common Mode Rejection Ratio
– Supply Voltage (VDD=3[V])
BU7495 family
8
5.5V
100
80
60
40
6
3.0V
4
2
1.8V
20
0
0
120
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
-60
120
Fig.66
Power Supply Rejection Ratio
– Ambient Temperature
BU7495 family
0
120
BU7495 family
120
Fig.65
Common Mode Rejection Ratio
– Ambient Temperature
8.0
-10
SLEW RATE L-H [V/μs]
5.5V
80
-5
Fig.63
Large Signal Voltage Gain
– Ambient Temperature
POWER SUPPLY REJECTI ON RATIO [dB]
COMMON MODE REJECTI ON RATI O [dB]
3.0V
60
-60
BU7495 family
100
0
Fig.61
Input Offset Voltage – Input Voltage
(VDD=3[V])
5.5V
1.8V
80
6
-40℃
-1
120
Fig.62
Large Signal Voltage Gain
– Supply Voltage
120
5
-15
120
0
0
1
85℃
25℃
BU7495 family
140
LARGE SIGNAL VOLTAGE GAIN [dB]
140
105℃
10
Fig.60
Input Offset Voltage – Ambient Temperature
(Vicm=VDD, VOUT=1.5[V])
BU7495 family
160
-30
0
30
60
90
AMBI ENT TEMPERATURE [℃]
COMMON MODE REJECTION RATIO [dB]
1
LARGE SIGNAL VOLTAGE GAIN [dB]
5.5V
-2.5
BU7495 family
15
7.5
INPUT OFFSET VOLTAGE [mV]
INPUT OFFSET VOLTAGE [mV]
7.5
BU7495 family
10.0
INPUT OFFSET VOLTAGE [mV]
10.0
BU7495 family
100
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
Fig.67
Slew Rate L-H
– Ambient Temperature
200
Phase
80
150
4.0
1.8V
60
100
40
Gain
2.0
50
20
0.0
0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [ ℃]
120
Fig.68
Slew Rate H-L – Ambient Temperature
PHASE [deg]
3.0V
GAIN [ dB]
SLEW RATE H-L [V/μs]
5.5V
6.0
0
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 1.E+08
FREQUENCY [Hz]
Fig.69
Voltage Gain－Frequency
(*)The above data is ability value of sample, it is not guaranteed. BU7495HFV: -40[℃] ~ +85[℃] BU7495SHFV: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
13/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7481 family)
POWER DISSIPATION [mW] .
BU7481G
600
400
200
85 100
50
AMBIENT TEMPERATURE [℃]
BU7481SG
400
200
0
150
105
50
100
AMBIENT TEMPERATURE [℃]
0
Fig.70
Derating curve
5.5V
3.0V
400
1.8V
200
0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [ ℃]
5
25℃
3
-40℃
2
1
2
3
4
5
SUPPLY VOLTAGE [V]
10
5.5V
1.8V
3.0V
5
0
3
4
5
SUPPLY VOLTAGE [V]
0
-60
6
Fig.76
Output Voltage Low
– Supply Voltage (RL=10[kΩ])
3.0V
10
1.8V
5
1.8V
2
1
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
BU7481 family
40
25℃
-40℃
30
20
10
105℃
85℃
0
-30
0
30
60
90
AMBI ENT TEMPERATURE [℃]
0
120
0.5
1
1.5
2
2.5
OUTPUT VOLTAGE [V]
3
Fig.78
Output Source Current – Output
Voltage (VDD=3[V])
BU7481 family
80
OUTPUT SINK CURRENT [mA]
OUTPUT SOURCE CURRENT [mA]
5.5V
15
3.0V
3
50
Fig.77
Output Voltage Low – Ambient
Temperature (RL=10[kΩ])
BU7481 family
20
5.5V
4
-60
BU7481 family
50
-40℃
60
OUTPUT SINK CURRENT [mA]
2
5
Fig.75
Output Voltage High
– Ambient Temperature (RL=10[kΩ])
25℃
1
6
BU7481 family
6
BU7481 family
15
OUTPUT VOLTAGE LOW [mV]
OUTPUT VOLTAGE LOW [mV]
105℃
85℃
5
3
4
5
SUPPLY VOLTAGE [ V]
0
1
Fig.74
Output Voltage High
– Supply Voltage (RL=10[kΩ])
10
2
6
0
120
BU7481 family
-40℃
1
Fig.72
Supply Current – Supply Voltage
85℃
Fig.73
Supply Current
– Ambient Temperature
15
0
150
105℃
4
-40℃
25℃
200
BU7481 family
6
OUTPUT VOLTAGE HIGH [V]
SUPPLY CURRENT [μA]
600
400
Fig.71
Derating curve
BU7481 family
800
105℃
85℃
600
OUTPUT VOLTAG E HIGH [V]
0
800
600
BU7481 family
800
OUTPUT SOURCE CURRENT [mA]
POWER DISSIPATION [mW] .
800
0
BU7481 family
1000
SUPPLY CURRENT [μA]
BU7481 family
1000
25℃
40
85℃
20
105℃
40
5.5V
30
20
3.0V
10
1.8V
0
-60
0
-30
0
30
60
90
120
AMBIENT TEMPERATURE [℃]
Fig.79
Output Source Current –Ambient Temperature
(VOUT=VDD-0.4[V])
0.0
0.5
1. 0
1.5
2.0
2.5
3.0
OUTPUT VOLTAGE [V]
Fig.80
Output Sink Current – Output Voltage
(VDD=3[V])
0
-60
-30
0
30
60
90
120
AMBIENT TEMPERATURE[℃]
Fig.81
Output Sink Current – Ambient Temperature
(VOUT=VSS+0.4[V])
(*)The above data is ability value of sample, it is not guaranteed. BU7481G: -40[℃] ~ +85[℃] BU7481SG: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
14/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7481 family)
INPUT OFFSET VOLTAGE [mV]
4
105℃
2
0
85℃
-2
-40℃
25℃
-4
-6
-8
5.5V
2.5
0.0
1.8V
-2.5
-5.0
-7.5
2
3
4
5
INPUT VOLTAGE [V]
Fig.82
Input Offset Voltage – Supply Voltage
(Vicm=VDD-1.2[V], VOUT=1.5[V])
85℃
105℃
120
100
25℃
80
-40℃
60
40
20
-30
0
30
60
90
AMBI ENT TEMPERATURE [ ℃]
2
3
4
5
SUPPLY VOLTAGE [V]
5.5V
140
3.0V
1.8V
120
100
80
-60
6
Fig.85
Large Signal Voltage Gain
– Supply Voltage
POWER SUPPLY REJECTI ON RATIO [dB]
5.5V
100
80
1.8V
60
3.0V
40
20
0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
2
0
-2
-4
-6
1
2
INPUT VOLTAGE [V]
3
BU7481 family
120
-40℃
100
80
85℃
25℃ 105℃
60
40
20
0
2
3
4
5
SUPPLY VOLTAGE [V]
6
Fig.87
Common Mode Rejection Ratio
– Supply Voltage (VDD=3[V])
BU7481 family
5.0
120
4.0
100
80
60
40
5.5V
3.0
3.0V
1.8V
2.0
1.0
20
0.0
0
120
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
-60
120
Fig.89
Power Supply Rejection Ratio
– Ambient Temperature
BU7481 family
0
Fig.84
Input Offset Voltage – Input Voltage
(VDD=3[V])
1
BU7481 family
140
Fig.88
Common Mode Rejection Ratio
– Ambient Temperature
6.0
-40℃
Fig.86
Large Signal Voltage Gain
– Ambient Temperature
BU7481 family
120
4
-1
60
0
1
25℃
120
BU7481 family
160
LARGE SIGNAL VOLTAGE GAIN [dB]
140
85℃
6
Fig.83
Input Offset Voltage – Ambient Temperature
(Vicm=VDD-1.2[V], VOUT=1.5[V])
BU7481 family
160
8
-8
-60
6
105℃
-10
COMMON MODE REJECTION RATIO [dB]
1
COMMON MODE REJECTI ON RATIO [dB]
3.0V
-10.0
-10
LARGE SIG NAL VOLTAGE GAIN [dB]
7.5
5.0
BU7481 family
10
SLEW RATE L-H [V/μs]
INPUT OFFSET VOLTAG E [mV]
8
6
BU7481 family
10.0
INPUT OFFSET VOLTAGE [mV]
BU7481 family
10
BU7481 family
100
-30
0
30
60
90
AMBIENT TEMPERATURE [ ℃]
120
Fig.90
Slew Rate L-H
– Ambient Temperature
200
Phase
5.5V
80
150
3.0V
3.0
1.8V
60
Gain
100
40
2.0
50
20
1.0
0.0
0
-60
-30
0
30
60
90
AMBI ENT TEMPERATURE [℃]
120
Fig.91
Slew Rate H-L – Ambient Temperature
PHASE [deg]
4.0
GAIN [dB]
SLEW RATE H-L [V/μs]
5.0
0
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 1.E+08
FREQUENCY [Hz]
Fig.92
Voltage Gain－Frequency
(*)The above data is ability value of sample, it is not guaranteed. BU7481G: -40[℃] ~ +85[℃] BU7481SG: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
15/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7485 family)
BU7485 family
BU7485G
400
200
85
50
100
AMBIENT TEMPERATURE [℃]
4
600
3
BU7485SG
400
200
0
150
0
BU7485 family
105
50
100
AMBIENT TEMPERATURE [ ℃]
5.5V
2
3.0V
85℃
4
3
-40℃
0
30
60
90
SUPPLY VOLTAGE [V]
25℃
2
1
2
120
10
85℃
25℃
5
-40℃
0
2.5
3
3.5
4
4.5
5
5.5
SUPPLY VOLTAGE [V]
5.5V
4.0V
5
3.0V
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
4.0V
4
3.0V
3
2
1
120
40
-40℃
30
25℃
20
10
105℃
85℃
0
120
0
0.5
1
1.5
2
2.5
OUTPUT VOLTAGE [V]
3
Fig.101
Output Source Current
– Output Voltage (VDD=3[V])
BU7485 family
80
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
BU7485 family
Fig.100
Output Voltage Low
– Ambient Temperature (RL=10[kΩ])
BU7485 family
6
5.5V
5
50
0
Fig.99
Output Voltage Low
– Supply Voltage (RL=10[kΩ])
20
10
-60
5.5
Fig.98
Output Voltage High
– Ambient Temperature (RL=10[kΩ])
15
6
3.5
4
4.5
5
SUPPLY VOLTAGE [V]
BU7485 family
0
-60
6
BU7485 family
20
OUTPUT VOLTAGE LOW [mV]
15
105℃
3
4
5
SUPPLY VOLTAG E [V]
Fig.97
Output Voltage High
– Supply Voltage (RL=10[kΩ])
BU7485 family
3
6
OUTPUT SOURCE CURRENT [mA]
-30
20
BU7485 family
40
70
OUTPUT SINK CURRENT [mA]
5.5V
15
4.0V
10
5
3.0V
0
-60
60
-40℃
OUTPUT SINK CURRENT [mA]
OUTPUT VOLTAG E LO W [mV]
2.5
Fig.95
Supply Current – Supply Voltage
105℃
5
Fig.96
Supply Current
– Ambient Temperature
OUTPUT SOURCE CURRENT [mA]
0
150
0
0
-60
25℃
1
BU7485 family
6
OUTPUT VOLTAGE HIGH [ V]
SUPPLY CURRENT [mV]
3
1
2
Fig.94
Derating curve
4
105℃
-40℃
Fig.93
Derating curve
4.0V
BU7485 family
85℃
OUTPUT VO LTAGE HIGH [V]
0
800
SUPPLY CURRENT [ μA]
600
0
BU7485 family
POWER DISSIPATION [mW] .
POWER DISSIPATION [mW] .
800
25℃
50
40
30
20
85℃
105℃
10
0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
Fig.102
Output Source Current –Ambient Temperature
(VOUT=VDD-0.4[V])
0.0
0.5
1.0
1.5
2.0
2.5
OUTPUT VOLTAGE [V]
3.0
Fig.103
Output Sink Current – Output Voltage
(VDD=3[V])
30
4.0V
5.5V
20
10
0
-60
3.0V
-30
0
30
60
90
AMBI ENT TEMPERATURE [ ℃]
120
Fig.104
Output Sink Current – Ambient Temperature
(VOUT=VSS+0.4[V])
(*)The above data is ability value of sample, it is not guaranteed. BU7485G: -40[℃] ~ +85[℃] BU7485SG: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
16/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU7485 family)
BU7485 family
5.0
105℃
85℃
0.0
-2.5
25℃
-40℃
-5.0
-7.5
5.0
5.5V
2.5
0.0
-2.5
-7.5
-10.0
3
4
5
SUPPLY VOLTAGE [V]
100
80
105℃
25℃
85℃
60
40
20
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
5.5V
4.0V
3.0V
100
80
-60
6
Fig.108
Large Signal Voltage Gain
– Supply Voltage
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
80
3.0V
5.5V
60
40
20
0
-60
-30
0
30
60
90
AMBI ENT TEMPERATURE [℃]
-40℃
85℃
100
80
25℃
105℃
60
40
20
0
3
4
5
SUPPLY VOLTAGE [V]
6
BU7485 family
5.5V
10.0
80
60
40
8.0
3.0V
4.0V
6.0
4.0
2.0
20
0.0
0
120
-60
-30
0
30
60
90
AMBI ENT TEMPERATURE [℃]
-60
120
Fig.112
Power Supply Rejection Ratio
– Ambient Temperature
BU7485 family
BU7485 family
12.0
100
Fig.111
Common Mode Rejection Ratio
– Ambient Temperature
30.0
3
Fig.110
Common Mode Rejection Ratio
– Supply Voltage (VDD=3[V])
SLEW RATE L-H [V/μs]
POWER SUPPLY REJECTI ON RATIO [ dB]
4.0V
100
1
2
INPUT VOLTAGE [V]
120
2
120
BU7485 family
120
0
Fig.107
Input Offset Voltage – Input Voltage
(VDD=3[V])
Fig.109
Large Signal Voltage Gain
– Ambient Temperature
BU7485 family
120
25℃
-40℃
-1
60
3
4
5
SUPPLY VOLTAG E [V]
105℃
-10
120
140
0
2
-5
BU7485 family
160
LARGE SIGNAL VOLTAGE GAI N [ dB]
LARGE SIGNAL VOLTAG E GAI N [dB]
-40℃
120
85℃
0
Fig.106
Input Offset Voltage – Ambient Temperature
(Vicm=VDD-1.4[V], VOUT=1.5[V])
BU7485 family
140
5
-15
-60
6
Fig.105
Input Offset Voltage – Supply Voltage
(Vicm=VDD-1.4[V], VOUT=1.5[V])
10
COMMON MODE REJECTION RATIO [dB]
2
COMMON MODE REJECTION RATIO [dB]
4.0V
3.0V
-5.0
-10.0
BU7485 family
15
7.5
INPUT OFFSET VOLTAGE [mV]
INPUT OFFSET VOLTAGE [mV]
7.5
2.5
BU7485 family
10.0
INPUT OFFSET VOLTAGE [mV]
10.0
BU7485 family
100
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
Fig.113
Slew Rate L-H
– Ambient Temperature
200
Phase
5.5V
80
150
4.0V
15.0
10.0
60
100
40
Gain
3.0V
50
20
5.0
0
0.0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
Fig.114
Slew Rate H-L – Ambient Temperature
PHASE [deg]
20.0
GAIN [dB]
SLEW RATE H-L [V/μs]
25.0
0
1.E+00 1.E+01 1.E+02 1.E+03
1.E+04 1.E+05 1.E+06 1.E+07 1.E+08
FREQUENCY[Hz]
Fig.115
Voltage Gain－Frequency
(*)The above data is ability value of sample, it is not guaranteed. BU7485G: -40[℃] ~ +85[℃] BU7485SG: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
17/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU5281 family)
BU5281 family
1000
BU5281 family
1000
BU5281 family
1
85℃
PO WER DISSIPATIO N [mW] .
800
BU5281G
600
400
200
0
85 100
50
AMBIENT TEMPERATURE [℃]
0
800
0. 8
SUPPLY CURRENT [ μA]
POWER DISSIPATION [mW] .
105℃
BU5281SG
600
400
200
0
150
0
50
100105
AMBIENT TEMPERATURE [℃]
Fig.116
Derating curve
0. 6
25℃
0. 4
0. 2
0
150
1
Fig.117
Derating curve
BU5281 family
1
2
3
4
5
SUPPLY VOLTAGE [V]
6
Fig.118
Supply Current – Supply Voltage
BU5281 family
6
-40℃
BU5281 family
6
5.5V
3.0V
0. 6
1.8V
0. 4
0. 2
25℃
3
-40℃
2
1
Fig.119
Supply Current
– Ambient Temperature
10
25℃
85℃
105℃
5
2
3
4
5
SUPPLY VOLTAGE [V]
6
Fig.122
Output Voltage Low
– Supply Voltage (RL=10[kΩ])
5.5V
3.0V
20
1.8V
0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
1.8V
2
1
-60
10
1.8V
3.0V
5.5V
5
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
-40℃
30
25℃
20
105℃
120
Fig.125
Output Source Current –Ambient Temperature
(VOUT=VDD-0.4[V])
25℃
40
105℃
20
0
0.0
0.5
1.0
1.5
2.0
2.5
OUTPUT VOLTAGE [V]
3.0
Fig.126
Output Sink Current – Output Voltage
(VDD=3[V])
85℃
10
0
120
-40℃
85℃
120
BU5281 family
40
0.0
0.5
1.0
1.5
2.0
2.5
OUTPUT VOLTAGE [V]
3.0
Fig.124
Output Source Current
– Output Voltage (VDD=3[V])
BU5281 family
60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
Fig.121
Output Voltage High
– Ambient Temperature (RL=10[kΩ])
15
80
OUTPUT SINK CURRENT [mA]
60
40
3.0V
3
Fig.123
Output Voltage Low
– Ambient Temperature (RL=10[kΩ])
BU5281 family
80
5.5V
4
6
BU5281 family
0
-60
0
1
3
4
5
SUPPLY VOLTAGE [V]
20
O UTPUT VOLTAGE LOW [mV]
15
-40℃
2
Fig.120
Output Voltage High
– Supply Voltage (RL=10[kΩ])
BU5281 family
20
5
0
1
120
OUTPUT SOURCE CURRENT [mA]
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
BU5281 family
60
OUTPUT SINK CURRENT [mA]
-60
OUTPUT VOLTAG E LO W [mV]
85℃
4
0
0
OUTPUT SOURCE CURRENT [mA]
105℃
5
OUTPUT VOLTAG E HIGH [V]
OUTPUT VOLTAGE HIGH [V]
SUPPLY CURRENT [mA]
0. 8
50
40
30
20
5.5V
3.0V
1.8V
10
0
-60
-30
0
30
60
90
AMBI ENT TEMPERATURE[℃]
120
Fig.127
Output Sink Current – Ambient Temperature
(VOUT=VSS+0.4[V])
(*)The above data is ability value of sample, it is not guaranteed. BU5281G: -40[℃] ~ +85[℃] BU5281SG: -40[℃] ~ +105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
18/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Reference Data (BU5281 family)
BU5281 family
5.0
-40℃
2.5
25℃
0.0
-2.5
105℃
85℃
-5.0
-7.5
-10.0
-40℃
5.0
0.0
-2.5
1.8V
-5.0
-7.5
3
4
5
6
-60
Fig.128
Input Offset Voltage – Supply Voltage
(Vicm=VDD-1.2[V], VOUT=1.5[V])
140
120
105℃
100
85℃
80
25℃
60
40
20
120
100
1.8V
80
60
40
20
6
-60
Fig.131
Large Signal Voltage Gain
– Supply Voltage
5.5V
100
80
1.8V
60
40
20
0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
-40℃
100
80
85℃
25℃
105℃
60
40
20
0
2
3
4
5
SUPPLY VOLTAGE [V]
6
BU5281 family
4.0
5.5V
60
3.0
3.0V
2.0
1.0
1.8V
30
0
-60
3
Fig.133
Common Mode Rejection Ratio
– Supply Voltage (VDD=3[V])
90
0.0
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
-60
120
Fig.135
BU5281 family
100
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
Fig.136
Slew Rate L-H –
Ambient Temperature
Power Supply Rejection Ratio
– Ambient Temperature
200
Phase
5.5V
8.0
80
GAIN [dB]
6.0
4.0
1
2
INPUT VOLTAGE [V]
BU5281 family
1
120
Fig.134
BU5281 family
0
120
120
BU5281 family
150
Common Mode Rejection Ratio
– Ambient Temperature
10.0
-10
3.0V
1.8V
150
60
Gain
100
40
2.0
PHASE [deg]
3.0V
-5
Fig.130
Input Offset Voltage – Input Voltage
(VDD=3[V])
SLEW RATE L-H [V/μs]
BU5281 family
120
105℃
0
Fig.132
Large Signal Voltage Gain
– Ambient Temperature
POWER SUPPLY REJECTION RATIO [dB]
COMMON MODE REJECTION RATIO [dB]
3.0V
5.5V
0
2
3
4
5
AMBIENT TEMPERATURE [℃]
5
-1
140
0
1
25℃
85℃
-15
120
BU5281 family
160
LARGE SIGNAL VOLTAGE GAIN [dB]
LARGE SIGNAL VOLTAGE GAIN [dB]
-40℃
10
Fig.129
Input Offset Voltage – Ambient Temperature
(Vicm=VDD-1.2[V], VOUT=1.5[V])
BU5281 family
160
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
COMMON MODE REJECTION RATIO [dB]
2
SUPPLY VO LTAGE[V]
SLEW RATE H-L [V/μs]
5.5V
3.0V
2.5
-10.0
1
BU5281 family
15
7.5
INPUT OFFSET VOLTAGE [mV]
INPUT OFFSET VO LTAGE [mV]
7.5
BU5281 family
10.0
INPUT OFFSET VOLTAGE [mV]
10.0
50
20
0.0
-60
-30
0
30
60
90
AMBIENT TEMPERATURE [℃]
120
0
0
1.E+00 1.E+0 1 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07 1.E+08
FREQUENCY [Hz]
Fig.137
Slew Rate H-L – Ambient Temperature
Fig.138
Voltage Gain－Frequency
(*)The above data is ability value of sample, it is not guaranteed. BU5281G: -40[℃] ~ +85[℃] BU5281SG: -40[℃] ~ +105[℃]
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© 2010 ROHM Co., Ltd. All rights reserved.
19/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Test circuit 1 NULL method
○Input-Output Full Swing BU7291/BU7255 family
Parameter
Input Offset Voltage
VDD, VSS, EK, Vicm Unit:[V]
Calculation
VSS EK
Vicm
VF
S1
S2
S3
VDD
VF1
ON
ON
OFF
3
0
ON
ON
ON
3
0
-1.5
VF2
VF3
ON
OFF
3
0
-1.5
3
VF5
3
VF6
ON
ON
OFF
2.4
0
-1.2
0
4
5.5
BU7495/BU7481/BU7485/BU5281 family
Parameter
Input Offset Voltage
VF
S1
S2
S3
VDD
ON
ON
OFF
3
0
ON
ON
ON
3
0
ON
ON
OFF
3
0
-1.5
0
-0.9
VF3
VF4
Common-mode Rejection Ratio
(Input Common-mode Voltage Range)
VF5
BU7495/BU7481/BU5281
BU7485
VDD, VSS, EK, Vicm Unit:[V]
VSS
EK
Vicm Calculation
VF1
VF2
Large Signal Voltage Gain
Power Supply
Rejection Ratio
2
0
ON
VF7
○Ground Sense
1.5
-2.5
VF4
Power Supply Rejection Ratio
1
-0.5
Large Signal Voltage Gain
Common-mode Rejection Ratio
(Input Common-mode Voltage Range)
3
-1.5
-0.5
-2.5
1.8
1
0.9
2
0
1.8
3
1.8
VF6
ON
ON
OFF
VF7
3.0
0
4
5.5
－Calculation－
1. Input Offset Voltage (Vio)
|VF1|
Vio =
Av = 20Log
2. Large Signal Voltage Gain (Av)
[V]
1+Rf/Rs
2×(1+Rf/Rs)
[dB]
|VF2-VF3|
3 Common-mode Rejection Ratio (CMRR)
CMRR = 20Log
4. Power Supply Rejection Ratio (PSRR)
PSRR = 20Log
ΔVicm×(1+Rf/Rs)
1.8×(1+Rf/Rs)
[dB]
[dB]
|VF4-VF5|
ΔV
3.8×(1+Rf/Rs)
DD×(1+Rf/Rs)
|VF6-VF7|
[dB]
[dB]
0.1[µF]
Rf=50[kΩ]
SW1
RS=50[Ω]
500[kΩ]
VDD
Ri=1[MΩ]
Vo
0.01[µF]
15[V]
EK
500[kΩ]
0.015[µF]
0.015[µF]
DUT
RS=50[Ω] Ri=1[MΩ]
Vicm
50[kΩ]
NULL
1000[pF]
SW3
V
RL
SW2
VSS
VF
-15[V]
VRL
Fig.139 Test circuit 1 (one channel only)
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© 2010 ROHM Co., Ltd. All rights reserved.
20/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Test circuit 2 switch condition
SW
1
SW No.
Supply Current
SW
2
SW
3
SW
4
SW
5
SW
6
SW
7
SW
8
OFF OFF
ON
OFF
ON
OFF OFF OFF OFF OFF OFF OFF
Maximum Output Voltage (RL=10[kΩ]) OFF
ON
OFF OFF
ON
OFF OFF
Output Current
OFF
ON
OFF OFF
ON
OFF OFF OFF OFF
Slew Rate
OFF OFF
Maximum Frequency
ON
ON
OFF OFF OFF
OFF OFF
ON
ON
ON
SW
9
ON
SW
10
SW
11
OFF OFF
ON
ON
SW
12
OFF
OFF OFF
OFF
ON
OFF OFF
ON
OFF OFF OFF
ON
OFF OFF
ON
SW3
R2 100[kΩ]
SW4
VDD=3[V]
－
SW1
＋
SW2
R1
1[kΩ]
SW5
SW6
SW8
SW7
SW9
SW10 SW11
SW12
GND
VIN-
RL
VIN+
CL
Vo
Fig.140 Test circuit 2
VIN [V]
VOUT [V]
SR = Δ V / Δ t
3[V]
3[V]
ΔV
3[VP-P ]
Δt
0[V]
0[V]
t
t
Fig.141 Slew rate input output wave
(Input-Output Full Swing BU7291/BU7255 family)
VIN [V]
VOUT [V]
SR = Δ V / Δ t
1.8[V]
1.8[V]
ΔV
1.8[V P-P ]
Δt
0[V]
0[V]
t
t
Fig.142 Slew rate input output wave
(Ground Sense BU7495/BU7481/BU7485/BU5281 family)
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© 2010 ROHM Co., Ltd. All rights reserved.
21/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Test circuit 3 Channel Separation
R2=100[kΩ]
R2=100[kΩ]
VDD
R1=1[kΩ]
V
～
VIN
R1//R2
VDD
R1=1[kΩ]
VSS
V
VOUT1
=1[Vrms]
～
R1//R2
VOUT2
VSS
CS=20Log
100 × VOUT1
VOUT2
Fig.143 Test circuit 3
●Schematic Diagram
○Input-Output Full Swing BU7291/BU7255 family
VDD
Vbias
IN+
class
AB control
IN－
OUT
Vbias
VSS
Fig.144 Input-Output Full Swing Schematic Diagram
○Ground Sense BU7495/BU7481/BU7485/BU5281 family
VDD
Vbias
IN+
class
AB control
IN‐
VSS
OUT
Vbias
Fig.145 Ground Sense Schematic Diagram
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© 2010 ROHM Co., Ltd. All rights reserved.
22/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Examples of circuit
○Voltage follower
Voltage gain is 0 [dB].
This circuit controls output voltage (Vout) equal input
voltage (Vin), and keeps Vout with stable because of
high input impedance and low output impedance.
Vout is shown next formula.
Vout=Vin
VDD
Vout
Vin
VSS
Fig.146 Voltage follower
○Inverting amplifier
R2
For inverting amplifier, Vin is amplified by voltage gain
decided R1 and R2, and phase reversed voltage is
outputted. Vout is shown next formula.
Vout=-(R2/R1)・Vin
Input impedance is R1.
VDD
Vin
R1
Vout
R1//R2
VSS
Fig.147 Inverting amplifier circuit
○Non-inverting amplifier
R1
For non-inverting amplifier, Vin is amplified by voltage
gain decided R1 and R2, and phase is same with Vin.
Vout is shown next formula.
Vout=(1+R2/R1)・Vin
This circuit realizes high input impedance because
Input impedance is operational amplifier’s input
Impedance.
R2
VDD
Vout
Vin
Fig.148
VSS
Non-inverting amplifier circuit
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© 2010 ROHM Co., Ltd. All rights reserved.
23/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Derating Curve
Power dissipation (total loss) indicates the power that can be consumed by IC at Ta=25℃(normal temperature).IC is heated
when it consumed power, and the temperature of IC ship becomes higher than ambient temperature. The temperature that
can be accepted by IC chip depends on circuit configuration, manufacturing process, and consumable power is limited.
Power dissipation is determined by the temperature allowed in IC chip (maximum junction temperature) and thermal
resistance of package (heat dissipation capability). The maximum junction temperature is typically equal to the maximum
value in the storage package (heat dissipation capability). The maximum junction temperature is typically equal to the
maximum value in the storage temperature range. Heat generated by consumed power of IC radiates from the mold resin or
lead frame of the package. The parameter which indicates this heat dissipation capability (hardness of heat release) is called
thermal resistance, represented by the symbol θj-a[℃/W]. The temperature of IC inside the package can be estimated by
this thermal resistance.
Fig.149 (a) shows the model of thermal resistance of the package. Thermal resistance θja, ambient temperature Ta, junction
temperature Tj, and power dissipation Pd can be calculated by the equation below:
θja = (Tj－Ta) / Pd
[℃/W]
・・・・・ (Ⅰ)
Derating curve in Fig.149 (b) indicates power that can be consumed by IC with reference to ambient temperature. Power that
can be consumed by IC begins to attenuate at certain ambient temperature. This gradient is determined by thermal
resistance θja. Thermal resistance θja depends on chip size, power consumption, package, ambient temperature, package
condition, wind velocity, etc even when the same of package is used. Thermal reduction curve indicates a reference value
measured at a specified condition. Fig.150(c)-(d) show a derating curve for an example of BU7291 family, BU7255 family, ,
BU7495 family , BU7481 family , BU7485 family , BU5281 family.
[W]
Pd(max)
(Tj－Ta) / Pd [ ℃ / W]
P2
Ambient temperature Ta[ ℃ ]
Package face temperature Ta[℃ ]
Pd[W]
Power dissipation of IC
θja =
θja2 <θja1
θja2
P1
0
Chip surface temperature Tj[ ℃ ]
Tj(max)
θja1
50
25
75
100
125
Ambient temperature Ta[℃]
(a) Thermal resistance
(b) Derating curve
Fig.149 Thermal resistance and derating
(a) Thermal resistance
1000
1000
800
535[mW]
600
54 0 [m W ]
BU7291G(*20)
BU7481G(*20)
BU7485G(*20)
BU5281G(*20)
POW ER DISSIPATION [mW ]
POW ER DISSIPATION [m W ]
540[mW]
BU7255HFV(*21)
BU7495HFV(*21)
400
200
0
0
85
800
53 5 [m W ]
600
200
105
0
150
(c) BU7291G BU7481G BU7485G
BU5281G BU7255HFV BU7495HFV
BU7255SHFV(*21)
BU7495SHFV(*21)
400
0
50
100
AMBIENT TEMPERATURE[℃ ]
BU7291SG(*20)
BU7481SG(*20)
BU7485SG(*20)
BU5281SG(*20)
50
100
AMBIENT TEMPERATURE[℃ ]
150
(d) BU7291SG BU7481SG BU7485SG
BU5281SG BU7255SHFV BU7495SHFV
(*20)
(*21)
Unit
5.4
5.35
[mW/℃]
When using the unit above Ta=25[℃], subtract the value above per degree[℃]. Permissible dissipation is the value
when FR4 glass epoxy board 70[mm]×70[mm]×1.6[mm] (cooper foil area below 3[%]) is mounted
Fig.150 Derating Curve
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© 2010 ROHM Co., Ltd. All rights reserved.
24/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Notes for Use
1) Absolute maximum ratings
Absolute maximum ratings are the values which indicate the limits, within which the given voltage range can be safely
charged to the terminal. However, it does not guarantee the circuit operation.
2) Applied voltage to the input terminal
For normal circuit operation of voltage comparator, please input voltage for its input terminal within input common mode
voltage VDD + 0.3[V]. Then, regardless of power supply voltage, VSS-0.3[V] can be applied to input terminals without
deterioration or destruction of its characteristics.
3) Operating power supply (split power supply/single power supply)
The operational amplifier operates if a given level of voltage is applied between VDD and VSS. Therefore, the operational
amplifier can be operated under single power supply or split power supply.
4) Power dissipation (Pd)
If the IC is used under excessive power dissipation. An increase in the chip temperature will cause deterioration of the
radical characteristics of IC. For example, reduction of current capability. Take consideration of the effective power
dissipation and thermal design with a sufficient margin. Pd is reference to the provided power dissipation curve.
5) Output short circuit
If short circuit occurs between the output terminal and VDD terminal, excessive in output current may flow and generate
heat, causing destruction of the IC. Take due care.
6) Using under strong electromagnetic field
Be careful when using the IC under strong electromagnetic field because it may malfunction.
7) Usage of IC
When stress is applied to the IC through warp of the printed circuit board, The characteristics may fluctuate due to the
piezo effect. Be careful of the warp of the printed circuit board.
8) Testing IC on the set board
When testing IC on the set board, in cases where the capacitor is connected to the low impedance, make sure to
discharge per fabrication because there is a possibility that IC may be damaged by stress. When removing IC from the set
board, it is essential to cut supply voltage. As a countermeasure against the static electricity, observe proper grounding
during fabrication process and take due care when carrying and storage it.
9) The IC destruction caused by capacitive load
The transistors in circuits may be damaged when VDD terminal and VSS terminal is shorted with the charged output
terminal capacitor.When IC is used as a operational amplifier or as an application circuit, where oscillation is not activated
by an output capacitor,the output capacitor must be kept below 0.1[μF] in order to prevent the damage mentioned above.
10) Decupling capacitor
Insert the decupling capacitance between VDD and VSS, for stable operation of operational amplifier.
11) Latch up
Be careful of input voltage that exceed the VDD and VSS. When CMOS device have sometimes occur latch up operation.
And protect the IC from abnormaly noise.
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© 2010 ROHM Co., Ltd. All rights reserved.
25/26
2010.12 - Rev.A
BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Ordering Part Number
B
U
7
Part No.
4
9
5
S
H
Part No.
Input-Output Full Swing
7291 , 7291S , 7255 , 7255S
Ground Sense
7495 , 7495S , 7481 , 7481S
7485 , 7485S , 5281 , 5281S
F
V
Package
G: SSOP5
HFV: HVSOF5
-
T
R
Packaging and forming specification
TR: Embossed tape and reel
SSOP5
5
4
1
2
0.2Min.
+0.2
1.6 −0.1
2.8±0.2
<Tape and Reel information>
+6°
4° −4°
2.9±0.2
3
Tape
Embossed carrier tape
Quantity
3000pcs
Direction
of feed
TR
The direction is the 1pin of product is at the upper right when you hold
( reel on the left hand and you pull out the tape on the right hand
1pin
+0.05
0.13 −0.03
1.25Max.
)
+0.05
0.42 −0.04
0.05±0.05
1.1±0.05
S
0.95
0.1
S
Direction of feed
Reel
(Unit : mm)
∗ Order quantity needs to be multiple of the minimum quantity.
HVSOF5
(0.3)
4
(0.91)
4
5
(0.41)
5
0.2MAX
1.0±0.05
(0.05)
(0.8)
Tape
Embossed carrier tape
Quantity
3000pcs
Direction
of feed
TR
The direction is the 1pin of product is at the upper right when you hold
( reel on the left hand and you pull out the tape on the right hand
)
3 2 1
1 2 3
1pin
0.13±0.05
S
+0.03
0.02 −0.02
1.6±0.05
0.6MAX
1.2±0.05
(MAX 1.28 include BURR)
<Tape and Reel information>
1.6±0.05
0.1
S
0.5
0.22±0.05
0.08
Direction of feed
M
(Unit : mm)
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© 2010 ROHM Co., Ltd. All rights reserved.
Reel
26/26
∗ Order quantity needs to be multiple of the minimum quantity.
2010.12 - Rev.A
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
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© 2010 ROHM Co., Ltd. All rights reserved.
R1010A

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