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PDF LM8261M5 Data sheet ( Hoja de datos )
| Número de pieza | LM8261M5 | |
| Descripción | RRIO/ High Output Current & Unlimited Cap Load Op Amp in SOT23-5 | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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April 2000
LM8261 Single
RRIO, High Output Current & Unlimited Cap Load Op
Amp in SOT23-5
General Description
The LM8261 is a Rail-to-Rail input and output Op Amp which
can operate with a wide supply voltage range. This device
has high output current drive, greater than Rail-to-Rail input
common mode voltage range, unlimited capacitive load drive
capability, and provides tested and guaranteed high speed
and slew rate while requiring only 0.97mA supply current. It
is specifically designed to handle the requirements of flat
panel TFT panel VCOM driver applications as well as being
suitable for other low power, and medium speed applications
which require ease of use and enhanced performance over
existing devices.
Greater than Rail-to-Rail input common mode voltage range
with 50dB of Common Mode Rejection, allows high side and
low side sensing, among many applications, without having
any concerns over exceeding the range and no compromise
in accuracy. Exceptionally wide operating supply voltage
range of 2.5V to 30V alleviates any concerns over function-
ality under extreme conditions and offers flexibility of use in
multitude of applications. In addition, most device param-
eters are insensitive to power supply variations; this design
enhancement is yet another step in simplifying its usage.
The output stage has low distortion (0.05% THD+N) and can
supply a respectable amount of current (15mA) with minimal
headroom from either rail (300mV).
The LM8261 is offered in the space saving SOT23-5 pack-
age.
Features
(VS = 5V, TA = 25˚C, Typical values unless specified).
n GBWP
21MHz
n Wide supply voltage range
2.5V to 30V
n Slew rate
12V/µs
n Supply current
0.97 mA
n Cap load limit
Unlimited
n Output short circuit current
+53mA/−75mA
n +/−5% Settling time
400ns (500pF, 100mVPP step)
n Input common mode voltage
0.3V beyond rails
n Input voltage noise
15nV/
n Input current noise
n THD+N
1pA/
< 0.05%
Applications
n TFT-LCD flat panel VCOM driver
n A/D converter buffer
n High side/low side sensing
n Headphone amplifier
Output Response with Heavy Capacitive Load
© 2000 National Semiconductor Corporation DS101084
DS101084-37
www.national.com
1 page  
5V Electrical Characteristics (Continued)
Unless otherwise
RL > 1MΩ to V−.
specified,
Boldface
all limited guaranteed for TJ = 25˚C, V+ =
limits apply at the temperature extremes.
5V,
V−
=
0V,
VCM
=
1V,
VO
=
V+/2,
and
Symbol
Parameter
Condition
Typ
(Note 5)
Limit
(Note 6)
IS Supply Current
No load, VCM = 1V
0.97 1.25
1.75
SR Slew Rate (Note 8)
AV = +1, VI = 5VPP
12 10
7
fu
GBWP
Unity Gain Frequency
Gain-Bandwidth Product
VI = 10mV,
RL = 2KΩ to V+/2
f = 50KHz
10.5 –
21 16
15
Phim
en
Phase Margin
Input-Referred Voltage Noise
VI = 10mV
f = 2KHz, RS = 50Ω
53 –
15 –
in Input-Referred Current Noise
f = 2KHz
1–
fmax
tS
THD+N
Full Power Bandwidth
Settling Time (+/−5%)
Total Harmonic Distortion + Noise
ZL = (20pF || 10kΩ) to V+/2
100mVPP Step, 500pF load
RL = 1KΩ to V+/2
f = 10KHz to AV= +2, 4VPP
swing
900
400
0.05
–
–
–
Units
mA
max
V/µs
min
MHz
MHz
min
Deg
nV/
pA/
KHz
ns
%
+/−15V Electrical Characteristics
Unless otherwise
RL > 1MΩ to 0V.
specified,
Boldface
all limited guaranteed for TJ = 25˚C, V+ =
limits apply at the temperature extremes.
15V,
V−
=
−15V,
VCM
=
0V,
VO
=
0V,
and
Symbol
Parameter
Condition
Typ
(Note 5)
Limit
(Note 6)
VOS Input Offset Voltage
VCM = −14.5V & VCM = 14.5V
+/−0.7
+/−7
+/− 9
TC VOS Input Offset Average Drift
VCM = −14.5V & VCM = 14.5V
(Note 12)
+/−2
–
IB Input Bias Current
VCM = −14.5V
(Note 7)
−1.05
−2.00
−2.80
VCM = 14.5V
(Note 7)
+0.49
+1.00
+1.50
IOS Input Offset Current
VCM = −14.5V & VCM = 14.5V
30
275
550
CMRR Common Mode Rejection Ratio
VCM stepped from −15V to 13V
100
84
80
VCM stepped from 14V to 15V
VCM stepped from −15V to 15V
100
88
–
74
72
+PSRR
Positive Power Supply Rejection
Ratio
V+ = 12V to 15V
100 70
66
−PSRR
CMVR
Negative Power Supply Rejection
Ratio
Input Common-Mode Voltage Range
V− = −12V to −15V
CMRR > 50dB
100
−15.3
70
66
−15.1
−15.0
15.3 15.1
15.0
Units
mV
max
µV/˚C
µA
max
nA
max
dB
min
dB
min
dB
min
V
max
V
min
5 www.national.com
5 Page 
Typical Performance Characteristics TA = 25˚C, Unless Otherwise Noted (Continued)
Output Voltage vs. Output Sourcing Current
Output Voltage vs. Output Sinking Current
Max Output Swing vs. Load
DS101084-44
Max Output Swing vs. Frequency
DS101084-45
% Overshoot vs. Cap Load
DS101084-10
±5% Settling Time vs. Cap Load
DS101084-11
DS101084-48
11
DS101084-47
www.national.com
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet LM8261M5.PDF ] | |
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