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BU7291G Datasheet, PDF (2/27 Pages) Rohm – High Speed with Low Voltage CMOS Operational Amplifiers | |||
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BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
âAbsolute Maximum Ratings(Ta=25[â])
Parameter
Symbol
Supply Voltage
Differential Input Voltage (*1)
Input Common-mode
Voltage Range
Operating Temperature
VDD - VSS
Vid
Vicm
Topr
Ratings
BU7291G, BU7255HFV
BU7495HFV, BU7481G
BU7485G, BU5281G
BU7291SG, BU7255SHFV
BU7495SHFV, BU7481SG
Unit
BU7485SG, BU5281SG
+7
V
VDD - VSS
V
(VSS - 0.3) ~ (VDD + 0.3)
V
- 40 ~ +85
- 40 ~ +105
â
Storage Temperature
Tstg
- 55 ~ +125
â
Maximum
Junction Temperature
Tjmax
+125
â
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.
âElectrical characteristics: Input-Output Full Swing
âBU7291 family(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[â])
Parameter
Limits
Symbol
Temperature
Range
BU7291G, BU7291SG
Unit
Min. Typ. Max.
Input Offset Voltage (*2)
Vio
25â
ï¼
1
9
mV
Condition
ï¼
Input Offset Current (*2)
Iio
25â
ï¼
1
ï¼
pA
ï¼
Input Bias Current (*2)
Supply Current (*3)
High Level Output Voltage
Ib
25â
ï¼
1
IDD
25â
Full range
ï¼
-
470
ï¼
VOH 25â VDD-0.1 ï¼
ï¼
800
1100
ï¼
pA
ï¼
μA
RL=â All Op-Amps
AV=0[dB],VIN=1.5[V]
V RL=10[kâ¦]
Low Level Output Voltage
VOL 25â
ï¼
ï¼ VSS+0.1 V RL=10[kâ¦]
Large Signal Voltage Gain
AV
25â
70
105
ï¼
dB RL=10[kâ¦]
Input Common-mode
Voltage Range
Vicm 25â
0
ï¼
3
V VSS ~ VDD
Common-mode Rejection Ratio CMRR 25â
40
60
ï¼
dB
ï¼
Power Supply Rejection Ratio PSRR 25â
45
80
ï¼
dB
ï¼
Output Source Current (*4)
IOH
25â
5
8
ï¼
mA VDD-0.4[V]
Output Sink Current (*4)
IOL
25â
9
16
ï¼
mA VSS+0.4[V]
Slew Rate
SR
25â
ï¼
3.0
ï¼
V/μs CL=25[pF]
Gain Band width
FT
25â
ï¼
2.8
ï¼
MHz CL=25[pF], AV=40[dB]
Phase Margin
θ
25â
ï¼
50
ï¼
° CL=25[pF], AV=40[dB]
Total Harmonic Distortion
THD 25â
ï¼
0.03
ï¼
% VOUT=0.8[Vp-p],f=1[kHz]
(*2) Absolute value
(*3) Full range BU7291: Ta=-40[â]~+85[â] BU7291S: Ta=-40[â]~+105[â]
(*4) 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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2/26
2010.12 - Rev.A
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