|
|
PDF LMC6684AIMX Data sheet ( Hoja de datos )
| Número de pieza | LMC6684AIMX | |
| Descripción | Low Voltage / Rail-To-Rail Input and Output CMOS | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LMC6684AIMX (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
|
No Preview Available !
May 1995
LMC6681 Single/LMC6682 Dual/LMC6684 Quad
Low Voltage, Rail-To-Rail Input and Output CMOS
Amplifier with Powerdown
General Description
The LMC6681/2/4 is a high performance operational ampli-
fier which can operate over a wide range of supply voltages,
with guaranteed specifications at 1.8V, 2.2V, 3V, 5V, and
10V.
The LMC6681/2/4 provides an input common-mode voltage
range that exceeds both supplies. The rail-to-rail output
swing of the amplifier assures maximum dynamic signal
range. This rail-to-rail performance of the amplifier, com-
bined with its high open-loop voltage gain makes it unique
among CMOS rail-to-rail amplifiers. The LMC6681/2/4 is an
excellent choice for circuits where the common-mode volt-
age range is a concern.
The LMC6681/2/4 has a powerdown mode which can be
controlled externally. In this powerdown mode, the supply
current decreases from 700 µA per amplifier to less than 1
µA per amplifier. The LMC6684 has two powerdown options.
Each of the powerdown pins disables two amplifiers.
The LMC6681/2/4 has been designed specifically to improve
system performance in low voltage applications. The ampli-
fier’s 80 fA input current, 0.5 mV offset voltage, and 82 dB
CMRR maintain accuracy in battery-powered systems.
Features
(Typical unless otherwise noted)
n Guaranteed Specs at 1.8V, 2.2V, 3V, 5V, 10V
n Rail-to-Rail Input Common-Mode Voltage Range
n Rail-to-Rail Output Swing
(within 10 mV of supply rail, @ VS=3V and RL=10 kΩ)
n Powerdown Mode IS OFF ≤ 1.5 µA/Amplifier
(Guaranteed at VS = 1.8V, 2.2V, 3V, and 5V)
n Ultra Low Input Current 80 fA
n High Voltage Gain (VS = 3V, RL = 10 kΩ): 120 dB
n Unity Gain Bandwidth 1.2 MHz
Applications
n Battery Operated Circuits
n Sensor Amplifiers
n Portable Communication Devices
n Medical Instrumentation
n Battery Monitoring Circuits
n Level Detectors, Sample-and-Hold Circuits
Connection Diagrams
8-Pin DIP/SO
14-Pin DIP/SO
DS012042-1
Top View
16-Pin DIP/SO
DS012042-2
Top View
© 1999 National Semiconductor Corporation DS012042
DS012042-3
Top View
www.national.com
1 page  
1.8V and 2.2V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed
(@ 2.2V), VPD = 0.3V (@ 1.8V) and RL > 1 MΩ.
for TJ = 25˚C, V+ = 1.8V and 2.2V, V− = 0V, VCM
Boldface limits apply at the temperature extremes
= VO
(Note
= V+/2,
16).
VPD
=
0.4V
LMC6681AI LMC6681BI
Typ LMC6682AI LMC6682BI
Symbol
Parameter
Conditions
(Note 5)
LMC6684AI LMC6684BI
Units
Limit
Limit
(Note 6)
(Note 6)
VOS
Input Offset Voltage
V+ = 1.8V, VCM = 1.5V
V+ = 2.2V, VCM = 1.5V
0.5
0.5
3
2
3.8
10 mV max
6 mV
7.8 max
TCVOS
Input Offset Voltage
Average Drift
V+ = 2.2V
1.5
µV/˚C
IB
IOS
CMRR
Input Current
Input Offset Current
Common Mode
V+ = 2.2V (Note 12)
V+ = 2.2V (Note 12)
V+ = 2.2V (Note 13)
0.08
0.04
82
20
10
60
20 pA max
10 pA max
60 dB min
Rejection Ratio
V+ = 1.8V (Note 13)
82 50
50 dB min
PSRR
VCM
Power Supply
Rejection Ratio
Input Common Mode
Voltage Range
±1.1V ≤ VS ≤ ±5V,
VO = V+/2 = VCM
V+ = 2.2V
CMRR > 40 dB
82
2.38
−0.15
70
65
2.2
0.0
65 dB
62 min
2.2 V min
0.0 V max
V+ = 1.8V
CMRR > 40 dB
1.98
−0.10
1.8
0.0
1.8 V min
0.0 V max
VO Output Swing
V+ = 2.2V
RL = 2 kΩ to V+/2
2.15
0.05
2.0
1.88
0.2
2.0 V
1.88 min
0.2 V
0.32
0.32 max
V+ = 1.8V
1.75
1.6
1.6 V
RL = 2 kΩ to V+/2
0.05
1.44
0.2
1.44 min
0.2 V
0.32
0.32 max
IS ON
Supply Current
when Powered ON
Single, LMC6681
VCM = 1.5V
Dual, LMC6682
0.7 1.1 1.1 mA
1.32
1.32 max
1.4 2.2
2.2 mA
VCM = 1.5V
Quad, LMC6684
2.7 2.7 max
2.8 4.4 4.4 mA
IS OFF
Supply Current
when Powered OFF
VCM = 1.5V
Single, LMC6681
VPD = 1.5V
Dual, LMC6682
5.3 5.3 max
0.5 1.5 1.5 µA
2.7 2.7 max
0.5 1.5 1.5 µA
VPD = 1.5V
Quad, LMC6684
2.7 2.7 max
1.0 3.0 3.0 µA
VPD = 1.5V
5.4 5.4 max
5 www.national.com
5 Page 
Typical Performance Characteristics VS+ = 3V, Single Supply, TA = 25˚C unless otherwise
specified (Continued)
CMRR
vs Frequency
Positive PSRR
vs Frequency
Negative PSRR
vs Frequency
Crosstalk Rejection
vs Frequency
DS012042-49
Slew Rate vs
Supply Voltage
DS012042-50
DS012042-51
Non-Inverting Large
Signal Pulse Response
DS012042-52
Inverting Large
Signal Pulse Response
DS012042-53
Non-Inverting Small
Signal Pulse Response
DS012042-54
Inverting Small
Signal Pulse Response
DS012042-55
DS012042-56
DS012042-57
11 www.national.com
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LMC6684AIMX.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LMC6684AIM | Low Voltage / Rail-To-Rail Input and Output CMOS | National Semiconductor |
| LMC6684AIMX | Low Voltage / Rail-To-Rail Input and Output CMOS | National Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |