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PDF BU7462SNUX Data sheet ( Hoja de datos )
| Número de pieza | BU7462SNUX | |
| Descripción | CMOS Operational Amplifiers | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
Operational Amplifiers
Ground Sense Low Voltage Operation
CMOS Operational Amplifiers
BU7461G BU7461SG BU7462xxx BU7462Sxxx BU7464F BU7464SF
General Description
BU7461G/BU7462xxx/BU7464F are input ground
sense, output full swing CMOS operational amplifiers.
BU7461SG/BU7462Sxxx/BU7464SF have an expanded
operating temperature range. They have the features of
low operating supply voltage, low supply current and low
input bias current. These are suitable for portable
equipment and sensor amplifiers.
Features
Low Supply Current
Low Operating Supply Voltage
Wide Temperature Range
Low Input Bias Current
Applications
Sensor Amplifier
Portable Equipment
Consumer Equipment
Key Specifications
Operating Supply Voltage:
+1.7V to +5.5V
Supply Current:
150µA/ch(Typ)
Temperature Range:
BU7461G/BU7462xxx/BU7464F
-40°C to +85°C
BU7461SG/BU7462Sxxx/BU7464SF
-40°C to +105°C
Input Offset Current:
1pA (Typ)
Input Bias Current:
1pA (Typ)
Packages
SSOP5
SOP8
MSOP8
VSON008X2030
SOP14
W(Typ) x D(Typ) x H(Max)
2.90mm x 2.80mm x 1.25mm
5.00mm x 6.20mm x 1.71mm
2.90mm x 4.00mm x 0.90mm
2.00mm x 3.00mm x 0.60mm
8.70mm x 6.20mm x 1.71mm
Simplified Schematic
VDD
IN+
IN-
Vbias
Class
AB control
OUT
VSS
Vbias
Figure 1. Simplified Schematic (1 channel only)
○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays
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© 2013 ROHM Co., Ltd. All rights reserved.
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BU7461G BU7461SG BU7462xxx BU7462Sxxx BU7464F BU7464SF Datasheet
Electrical Characteristics
○BU7461G, BU7461SG（Unless otherwise specified VDD=+3V, VSS=0V, TA=25°C)
Parameter
Symbol
Temperature
Range
Min
Limit
Typ
Max
Input Offset Voltage (Note 17)
VIO 25°C - 1 6
Unit
mV
Conditions
-
Input Offset Current (Note 17)
IIO 25°C - 1 - pA
-
Input Bias Current (Note 17)
IB 25°C - 1 - pA
-
Supply Current (Note 18)
25°C
IDD Full range
-
-
150
-
350
450
μA
RL=∞
AV=0dB, IN+=0.9V
Maximum Output Voltage(High) VOH
25°C VDD-0.1 -
- V RL=10kΩ
Maximum Output Voltage(Low)
VOL
25°C
-
- VSS+0.1 V RL=10kΩ
Large Signal Voltage Gain
Input Common-mode
Voltage Range
Common-mode
Rejection Ratio
Power Supply
Rejection Ratio
Output Source Current (Note 19)
Output Sink Current (Note 19)
AV
VICM
CMRR
PSRR
ISOURCE
ISINK
25°C
25°C
25°C
25°C
25°C
25°C
70 95
- dB RL=10kΩ
0 - 1.8 V VSS to VDD-1.2V
45 60
- dB
-
60 80
- dB
-
4 8 - mA VDD-0.4V
6 12 - mA VSS+0.4V
Slew Rate
SR 25°C - 1 - V/μs CL=25pF
Gain Bandwidth
GBW
25°C
-
1
- MHz CL=25pF, AV=40dB
Phase Margin
θ 25°C - 50 - deg CL=25pF, AV=40dB
Total Harmonic Distortion +
Noise
THD+N 25°C
- 0.05 -
%
OUT=0.8VP-P
f=1kHz
(Note 17) Absolute value
(Note 18) Full range: BU7461G: TA=-40°C to +85°C, BU7461SG: TA=-40°C to +105°C
(Note 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.
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BU7461G BU7461SG BU7462xxx BU7462Sxxx BU7464F BU7464SF
Typical Performance Curves – continued
○BU7461G, BU7461SG
40 20
Datasheet
-40°C
30
25°C
20
105°C
10
85°C
15
5.5V
10
3.0V
5
1.7V
0
0 0.5 1 1.5 2 2.5 3
Output Voltage [V]
Figure 10.
Output Source Current vs Output Voltage
(VDD=3 V)
0
-50
-25 0 25 50 75 100 125
Ambient Temperature [°C]
Figure 11.
Output Source Current vs Ambient Temperature
(OUT=VDD-0.4V)
80
-40°C
60
25°C
40
105°C
85°C
20
0
0.0
0.5 1.0 1.5 2.0 2.5
Output Voltage [V]
Figure 12.
Output Sink Current vs Output Voltage
(VDD=3V)
3.0
60
50
40
5.5V
30
3.0V
20
1.7V
10
0
-50
-25 0 25 50 75 100
Ambient Temperature [°C]
125
Figure 13.
Output Sink Current vs Ambient Temperature
(OUT=VSS+0.4V)
(*)The above characteristics are measurements of typical sample, they are not guaranteed.
BU7461G: -40°C to +85°C BU7461SG: -40°C to +105°C
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
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