BU7265G_1012 Datasheet, PDF (10/29 Pages) Rohm – Ultra Low Power CMOS Operational Amplifiers

BU7265G,BU7265SG,BU7205HFV,BU7205SHFV,BU7271G,BU7271SG,BU7245HFV,BU7245SHFV,
BU7411G,BU7411SG,BU7421G,BU7421SG,BU7475HFV,BU7475SHFV
Technical Note
○BU7271 family
10 .0
BU7271 family
7 .5
5 .0
2 .5
-40℃ ^25℃
0 .0
85℃ 105℃
-2 .5
-5 .0
-7 .5
- 10 .0
1
2
3
4
5
6
SUPPLY VOLTAGE [V]
Fig.36
Input Offset Voltage – Supply Voltage
(Vicm=VDD, VOUT=0.1[V])
160
BU7271 family
140
85℃ 105℃
120
100
-40℃ ^25℃
80
10.0
BU7271 family
15
BU7271 family
7.5
5.0
2.5
5.5V
0.0
1.8V 3.0V
-2.5
-5.0
-7.5
10
5
-40℃ _25℃
0
105℃
85℃
-5
-1 0
-10.0
-60 -30 0 30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig.37
Input Offset Voltage – Ambient Temperature
(Vicm=VDD, VOUT=1.5[V])
-1 5
-1
0
1
2
3
4
INPUT VOLTAGE [V]
Fig.38
Input Offset Voltage – Input Voltage
(VDD=3[V])
160
BU7271 family
120
BU7271 family
140
5.5V
120
100
3.0V
1.8V
85℃ 105℃
100
80
-40℃ 25℃
60
40
80
20
60
1
2
3
4
5
6
SUPPLY VOLTAGE [V]
Fig.39
Large Signal Voltage Gain
– Supply Voltage
120
BU7271 family
5.5V
100
80
1.8V
3.0V
60
40
20
0
-60 -30 0 30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig.42
Common Mode Rejection Ratio
– Ambient Temperature
60
-60
-30 0 30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig.40
Large Signal Voltage Gain
– Ambient Temperature
140
BU7271 family
120
100
80
60
40
20
0
-60 -30 0 30 60 90 120
AMBI ENT TEMPERATURE [℃]
Fig.43
Power Supply Rejection Ratio
– Ambient Temperature
0
1
2
3
4
5
6
SUPPLY VOLTAGE [V]
Fig.41
Common Mode Rejection Ratio
– Supply Voltage
(VDD=3[V])
80
BU7271 family
70
5.5V
60
50
40
3.0V
1.8V
30
20
10
0
-60
-30 0 30 60 90 120
AMBIENT TEMPERATURE [ ℃]
Fig.44
Slew Rate L-H – Ambient Temperature
80
BU7271 family
70
5.5V
60
50
3.0V
40
1.8V
30
20
10
0
-60 -30 0
30 60 90 120
AMBIENT TEMPERATURE [℃]
Fig.45
Slew Rate H-L – Ambient Temperature
100
Phase
80
60
Gain
40
20
BU7271 family ₂₀₀
150
100
50
0
1. E+ 00
0
1.E+01 1 .E+02 1.E+03 1.E+04 1.E+05 1.E+06
FREQUENCY [ Hz]
Fig.46
Voltage Gain－Frequency
(*)The above data is ability value of sample, it is not guaranteed. BU7271G: -40[℃] ~ +85[℃] BU7271SG: -40[℃] ~ +105[℃]
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10/28
2010.12 - Rev.A