BU7291G Datasheet, PDF (7/27 Pages) Rohm – High Speed with Low Voltage CMOS Operational Amplifiers

BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
Technical Note
○BU5281 family(Unless otherwise specified VDD=+3[V], VSS=0[V], Ta=25[℃])
Parameter
Symbol
Temperature
Range
Limits
BU5281G, BU5281SG
Min. Typ. Max.
Input Offset Voltage ^(*17)
Vio
25℃
－
0.1
2.5
Input Offset Voltage drift ^(*17)
ΔVio/ΔT
-
－
0.8
－
Input Offset Current ^(*17)
Iio
25℃
－
1
－
Input Bias Current ^(*17)
Supply Current ^(*18)
High Level Output Voltage
Ib
25℃
－
1
IDD
25℃
－
750
Full range －
－
VOH 25℃ VDD-0.1 －
－
1000
1200
－
Unit
Condition
mV
－
μV/℃
－
pA
－
pA
－
μA
RL=∞ All Op-Amps
AV=0[dB],VIN=0.9[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
110
－
dB RL=10[kΩ]
Input Common-mode
Voltage Range
Vicm 25℃
0
－
1.8
V VSS ~ VDD - 1.2[V]
Common-mode Rejection Ratio CMRR 25℃
45
60
－
dB
－
Power Supply Rejection Ratio PSRR 25℃
60
80
－
dB
－
Output Source Current ^(*19)
IOH
25℃
5
8
－
mA VDD-0.4[V]
Output Sink Current ^(*19)
IOL
25℃
10
16
－
mA VSS+0.4[V]
Slew Rate
SR
25℃
－
2.0
－
V/μs CL=25[pF]
Gain Band width
FT
25℃
－
3
－
MHz CL=25[pF], AV=40[dB]
Phase Margin
θ
25℃
－
40
－
° CL=25[pF], AV=40[dB]
－
18
－ nV/(Hz)^1/2 AV=40[dB], f=1[kHz]
Input Referred Noise Voltage
Vin
25℃
－
3.2
－ μVrms AV=40[dB], DINAUDIO
Total Harmonic Distortion
THD 25℃
－
0.003
－
% VOUT=0.4[Vp-p], f=1[kHz]
(*17) Absolute value
(*18) Full range BU5281: Ta=-40[℃]~+85[℃] BU5281S: Ta=-40[℃]~+105[℃]
(*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.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
7/26
2010.12 - Rev.A