BU7291G-E Datasheet, PDF (2/27 Pages) Rohm – Low Voltage with High Speed CMOS Op-Amp integrates one independent output full swing Op-Amps and phase compensation capacitors on a single chip.

BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
●Absolute Maximum Ratings(Ta=25[℃])
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 _Unit
BU7495SHFV, BU7481SG
BU7485SG, BU5281SG
+7
V
VDD - VSS
V
(VSS - 0.3) ~ (VDD + 0.3)
V
- 40 ~ +85
- 40 ~ +105
℃
Storage Temperature
Tstg
- 55 ~ +125
℃
Maximum
Junction Temperature
Tjmax
+125
℃
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[℃])
Parameter
Symbol
Temperature
Range
Limits
BU7291G, BU7291SG
Min. Typ. Max.
Input Offset Voltage ^(*2)
Vio
25℃
－
1
9
Input Offset Current ^(*2)
Iio
25℃
－
1
－
Input Bias Current ^(*2)
Supply Current ^(*3)
High Level Output Voltage
Ib
25℃
－
1
25℃
－
470
IDD
Full range -
－
VOH 25℃ VDD-0.1 －
－
800
1100
－
Unit
Condition
mV
－
pA
－
pA
－
μA
RL=∞ All Op-Amps
AV=0[dB],VIN=1.5[V]
V RL=10[kΩ]
Low Level Output Voltage
VOL 25℃
－
－ VSS+0.1 V RL=10[kΩ]
Large Signal Voltage Gain
AV
25℃
70
105
－
dB RL=10[kΩ]
Input Common-mode
Voltage Range
Vicm 25℃
0
－
3
V VSS ~ VDD
Common-mode Rejection Ratio CMRR 25℃
40
60
－
dB
－
Power Supply Rejection Ratio 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
Phase Margin
FT
25℃
－
2.8
－
MHz CL=25[pF], AV=40[dB]
θ
25℃
－
50
－
° CL=25[pF], AV=40[dB]
Total Harmonic Distortion
THD 25℃
－
0.03
－
% VOUT=0.8[Vp-p],f=1[kHz]
(*2) Absolute value
(*3) Full range BU7291: Ta=-40[℃]~+85[℃] BU7291S: Ta=-40[℃]~+105[℃]
(*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.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/26
2010.12 - Rev.A