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PDF LMC6482 Data sheet ( Hoja de datos )
| Número de pieza | LMC6482 | |
| Descripción | CMOS Dual Rail-To-Rail Input and Output Operational Amplifier | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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 1. Datasheet - Dual Operational Amplifier  Hay una vista previa y un enlace de descarga de LMC6482 (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
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November 1997
LMC6482
CMOS Dual Rail-To-Rail Input and Output Operational
Amplifier
General Description
The LMC6482 provides a common-mode range that extends
to both supply rails. This rail-to-rail performance combined
with excellent accuracy, due to a high CMRR, makes it
unique among rail-to-rail input amplifiers.
It is ideal for systems, such as data acquisition, that require
a large input signal range. The LMC6482 is also an excellent
upgrade for circuits using limited common-mode range am-
plifiers such as the TLC272 and TLC277.
Maximum dynamic signal range is assured in low voltage
and single supply systems by the LMC6482’s rail-to-rail out-
put swing. The LMC6482’s rail-to-rail output swing is guaran-
teed for loads down to 600Ω.
Guaranteed low voltage characteristics and low power dissi-
pation make the LMC6482 especially well-suited for
battery-operated systems.
LMC6482 is also available in MSOP package which is al-
most half the size of a SO-8 device.
See the LMC6484 data sheet for a Quad CMOS operational
amplifier with these same features.
Features
(Typical unless otherwise noted)
n Rail-to-Rail Input Common-Mode Voltage Range
(Guaranteed Over Temperature)
n Rail-to-Rail Output Swing (within 20 mV of supply rail,
100 kΩ load)
n Guaranteed 3V, 5V and 15V Performance
n Excellent CMRR and PSRR: 82 dB
n Ultra Low Input Current: 20 fA
n High Voltage Gain (RL = 500 kΩ): 130 dB
n Specified for 2 kΩ and 600Ω loads
n Available in MSOP Package
Applications
n Data Acquisition Systems
n Transducer Amplifiers
n Hand-held Analytic Instruments
n Medical Instrumentation
n Active Filter, Peak Detector, Sample and Hold, pH
Meter, Current Source
n Improved Replacement for TLC272, TLC277
3V Single Supply Buffer Circuit
Rail-To-Rail Input
Rail-To-Rail Output
DS011713-1
Connection Diagram
DS011713-2
DS011713-3
© 1999 National Semiconductor Corporation DS011713
DS011713-4
www.national.com
1 page  
AC Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 5V, V− = 0V, VCM = VO = V+/2, and RL > 1M. Boldface
limits apply at the temperature extremes.
Symbol
Parameter
T.H.D. Total Harmonic Distortion
Conditions
F = 10 kHz, AV = −2
RL = 10 kΩ, VO = 4.1 VPP
F = 10 kHz, AV = −2
RL = 10 kΩ, VO = 8.5 VPP
V+ = 10V
Typ
(Note 5)
LMC6482AI
Limit
(Note 6)
LMC6482I LMC6482M
Limit
Limit
(Note 6) (Note 6)
0.01
0.01
Units
%
%
DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25˚C, V+ = 3V, V− = 0V, VCM = VO = V+/2 and RL > 1M.
Symbol
Parameter
Conditions
Typ LMC6482AI LMC6482I LMC6482M
(Note 5)
Limit
Limit
Limit
(Note 6)
(Note 6)
(Note 6)
VOS Input Offset Voltage
0.9 2.0 3.0 3.0
2.7 3.7 3.8
TCVOS
Input Offset Voltage
Average Drift
2.0
IB
IOS
CMRR
Input Bias Current
Input Offset Current
Common Mode
Rejection Ratio
0V ≤ VCM ≤ 3V
0.02
0.01
74 64 60 60
PSRR Power Supply
3V ≤ V+ ≤ 15V, V− = 0V
80
68
60
60
Rejection Ratio
VCM Input Common-Mode For CMRR ≥ 50 dB
V− −0.25
0
0
0
Voltage Range
V+ + 0.25
V+
V+
V+
VO Output Swing
RL = 2 kΩ to V+/2
RL = 600Ω to V+/2
2.8
0.2
2.7 2.5 2.5 2.5
0.37
0.6
0.6
0.6
IS Supply Current
Both Amplifiers
0.825
1.2
1.2
1.2
1.5 1.5 1.6
Units
mV
max
µV/˚C
pA
pA
dB
min
dB
min
V
max
V
min
V
V
V
min
V
max
mA
max
AC Electrical Characteristics
Unless otherwise specified, V+ = 3V, V− = 0V, VCM = VO = V+/2, and RL > 1M.
Symbol
Parameter
Conditions
Typ LMC6482AI LMC6482I LMC6482M Units
(Note 5)
Limit
Limit
Limit
(Note 6)
(Note 6)
(Note 6)
SR Slew Rate
(Note 11)
0.9
V/µs
GBW Gain-Bandwidth Product
1.0
MHz
T.H.D.
Total Harmonic Distortion
F = 10 kHz, AV = −2
RL = 10 kΩ, VO = 2 VPP
0.01
%
Note 1: Absolute Maximum Ratings indicate limts beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2: Human body model, 1.5 kΩ in series with 100 pF. All pins rated per method 3015.6 of MIL-STD-883. This is a Class 1 device rating.
5 www.national.com
5 Page 
Typical Performance Characteristics VS = +15V, Single Supply, TA = 25˚C unless otherwise
specified (Continued)
Inverting Large Signal
Pulse Response
Inverting Large Signal
Pulse Response
Inverting Small Signal
Pulse Response
DS011713-81
Inverting Small Signal
Pulse Response
DS011713-82
Inverting Small Signal
Pulse Response
Stability vs
Capacitive Load
DS011713-83
Stability vs
Capacitive Load
DS011713-84
Stability vs
Capacitive Load
DS011713-85
Stability vs
Capacitive Load
DS011713-86
DS011713-87
DS011713-88
DS011713-89
11 www.national.com
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet LMC6482.PDF ] | |
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