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PDF BU7421SG Data sheet ( Hoja de datos )
| Número de pieza | BU7421SG | |
| Descripción | Ultra Low Power CMOS Operational Amplifiers | |
| Fabricantes | ROHM Semiconductor | |
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General-purpose Operational Amplifier / Comparator Series
Ultra Low Power
CMOS Operational Amplifiers
・Input / Output Full Swing type
BU7265G,BU7265SG,BU7271G,BU7271SG
・Input Ground Sense / Output Full Swing type
BU7411G,BU7411SG,BU7421G,BU7421SG
No.10049EAT14
●Description
Ultra Low Power CMOS Op-Amp BU7265/BU7271 family (Input-Output Full Swing)
and BU7411/BU7421 family (ground sense)are monolithic IC.
Supply current is very small (BU7265 family, BU7411 family: 0.35[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.
Input-Output Full Swing
Ground Sense
Ultra Low Power
Low Power
Ultra Low Power
Low Power
Single
Single
Single
Single
BU7265G
(BU7265SG:Operation guaranteed up to +105℃)
BU7271G
(BU7271SG:Operation guaranteed up to +105℃)
BU7411G
(BU7411SG:Operation guaranteed up to +105℃)
BU7421G
(BU7421SG:Operation guaranteed up to +105℃)
●Features
1) Ultra Low Power
0.35[µA] ：BU7265 family
：BU7411 family
8.5[µA] ：BU7421 family
8.6[µA] ：BU7271 family
2) Operable with low voltage
+1.8[V]~+5.5[V](single supply) ：BU7265 family
：BU7271 family
+1.7[V]~+5.5[V](single supply) ：BU7421 family
+1.6[V]~+5.5[V](single supply) ：BU7411 family
3) Low input bias current 1[pA] (Typ.)
4) Internal ESD protection
Human body model(HBM) ±4000[V](Typ.)
5) Wide temperature range
-40[℃]~+85[℃]
(BU7265G,BU7271G,BU7411G,BU7421G)
-40[℃]~+105[℃]
(BU7265SG,BU7271SG,BU7411SG,BU7421SG)
6) Internal phase compensation
7) High large signal voltage gain
●Pin Assignments
IN+ 1
VSS 2
IN- 3
+
-
5 VDD
4 OUT
SSOP5
BU7265G
BU7265SG
BU7271G
BU7271SG
BU7411G
BU7411SG
BU7421G
BU7421SG
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/17
2010.03 - Rev.A
1 page  
BU7265G,BU7265SG,BU7271G,BU7271SG,
BU7411G,BU7411SG,BU7421G,BU7421SG
○BU7265 family
10.0
BU7265 family
7.5
5.0
25℃
2.5 -40℃
0.0
-2.5 85℃
105℃
-5.0
-7.5
-10.0
0 12 3 45 6
SUPPLY VOLTAGE [V]
Fig.13 Input Offset Voltage
– Supply Voltage
(Vicm=VDD, VOUT=1.5[V])
160 BU7265 family
105℃
140 85℃
120
100
25℃
-40℃
80
60
0 12 3 45 6
SUPPLY VOLTAGE [V]
Fig.16 Large Signal Voltage Gain
– Supply Voltage
10.0
BU7265 family
7.5
5.0
2.5 5.5V
0.0
-2.5
3.0V
1.8V
-5.0
-7.5
-10.0
-60
-30
0
30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.14 Input Offset Voltage –
Ambient Temperature
(Vicm=VDD, VOUT=1.5[V])
160 BU7265 family
5.5V
140
120
100
3.0V
80 1.8V
60
-60 -30 0
30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.17 Large Signal Voltage Gain
– Ambient Temperature
Technical Note
www.DataSheet4U.com
15 BU7265 family
10
5 -40℃
25℃
0
-5
105℃
85℃
-10
-15
-1 0 1 2 3 4
INPUT VOLTAGE [V]
Fig.15 Input Offset Voltage
– Input Voltage (VDD=3[V])
120
100
25℃
80
60
BU7265 family
-40℃
85℃
105℃
40
20
0
0 1 2 34 5 6
SUPPLY VOLTAGE [V]
Fig.18 Common Mode Rejection Ratio
– Supply Voltage
120 BU7265 family
5.5V
100
80
60
1.8V
3.0V
40
20
0
-60 -30
0
30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.19 Common Mode Rejection Ratio
– Ambient Temperature
120 BU7265 family
100
80
60
40
20
0
-60
-30
0
30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.20 Power Supply Rejection Ratio
– Ambient Temperature
6 BU7265 family
5
4
5.5V
3
2
1
0
-60
1.8V
3.0V
-30 0
30 60 90
AMBIENT TEMPERATURE [°C]
Fig.21 Slew Rate L-H
– Ambient Temperature
120
6
BU7265 family
100
BU7265 family 200
5
4
5.5V
3
2
1
0
-60
1.8V
3.0V
-30 0
30 60 90
AMBIENT TEMPERATURE [°C]
120
Fig.22 Slew Rate H-L
– Ambient Temperature
Phase
80
60
Gain
40
20
150
100
50
00
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
FREQUENCY [Hz]
Fig.23 Gain – Frequency
(*)The above data is ability value of sample, it is not guaranteed.BU7265G：-40[℃]~+85[℃] BU7265SG：-40[℃]~+105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/17
2010.03 - Rev.A
5 Page 
BU7265G,BU7265SG,BU7271G,BU7271SG,
BU7411G,BU7411SG,BU7421G,BU7421SG
○BU7421 family
10.0
BU7421 family
7.5
5.0
2.5 -40℃ 25℃
0.0
-2.5
105℃
85℃
-5.0
-7.5
-10.0
0 12 3 45 6
SUPPLY VOLTAGE [V]
Fig.82 Input Offset Voltage
– Supply Voltage
(Vicm=VDD-1.2[V], VOUT=1.5[V])
160 BU7421 family
105℃
140
85℃
120
100
25℃
-40℃
80
60
0 1 2 34 5 6
SUPPLY VOLTAGE [V]
Fig.85 Large Signal Voltage Gain
– Supply Voltage
10.0
BU7421 family
7.5
5.0
2.5 5.5V
0.0
-2.5
3.0V
1.7V
-5.0
-7.5
-10.0
-60 -30 0
30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.83 Input Offset Voltage
– Ambient Temperature
(Vicm=VDD-1.2[V], VOUT=1.5[V])
160 BU7421 family
5.5V
140
120
100
3.0V
1.7V
80
60
-60 -30 0
30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.86 Large Signal Voltage Gain
– Ambient Temperature
Technical Note
www.DataSheet4U.com
15 BU7421 family
10
5
85℃
105℃
0
-40℃
25℃
-5
-10
-15
-1 0 1 2 3
INPUT VOLTAGE [V]
Fig.84 Input Offset Voltage
– Input Voltage (VDD=3[V])
120 BU7421 family
-40℃
25℃
100
80
105℃
85℃
60
40
20
0
01 234 56
SUPPLY VOLTAGE [V]
Fig.87 Common Mode Rejection Ratio
– Supply Voltage
120 BU7421 family
5.5V
100
80
3.0V
1.7V
60
40
20
0
-60 -30 0
30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.88 Common Mode Rejection Ratio
– Ambient Temperature
120 BU7421 family
100
80
60
40
20
0
-60 -30 0 30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.89 Power Supply Rejection Ratio
– Ambient Temperature
80 BU7421 family
5.5V
60
40
3.0V
1.7V
20
0
-60
-30
0
30 60 90 120
AMBIENT TEMPERATURE [°C]
Fig.90 Slew Rate L-H
– Ambient Temperature
BU7421 family
80 100
Phase
5.5V
60
80
40
3.0V
1.7V
20
60
40 Gain
20
BU7421 family 200
150
100
50
0
-60
-30 0
30 60 90
AMBIENT TEMPERATURE [°C]
120
Fig.91 Slew Rate H-L
– Ambient Temperature
00
1.E+00 1.E+01 1.E+02 1.E+03 1.E+04 1.E+05 1.E+06
FREQUENCY [Hz]
Fig.92 Gain – Frequency
(*)The above data is ability value of sample, it is not guaranteed. BU7421G：-40[℃]~+85[℃] BU7421SG：-40[℃]~+105[℃]
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
11/17
2010.03 - Rev.A
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet BU7421SG.PDF ] | |
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