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PDF LMV982 Data sheet ( Hoja de datos )
| Número de pieza | LMV982 | |
| Descripción | 1.8V / RRIO Operational Amplifiers with Shutdown | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LMV982 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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December 2002
LMV981 Single / LMV982 Dual
1.8V, RRIO Operational Amplifiers with Shutdown
General Description
LMV981/LMV982 are low voltage, low power operational
amplifiers. LMV981/LMV982 are guaranteed to operate from
+1.8V to +5.0V supply voltages and have rail-to-rail input
and output. LMV981/LMV982 input common mode voltage
extends 200mV beyond the supplies which enables user
enhanced functionality beyond the supply voltage range.
The output can swing rail-to-rail unloaded and within 105mV
from the rail with 600Ω load at 1.8V supply. LMV981/
LMV982 are optimized to work at 1.8V which make them
ideal for portable two-cell battery powered systems and
single cell Li-Ion systems.
LMV981/LMV982 offer a shutdown pin that can be used to
disable the device and reduce the supply current. The device
is in shutdown when the SHDN-pin = low.
LMV981/LMV982 exhibit excellent speed-power ratio,
achieving 1.4MHz gain bandwidth product at 1.8V supply
voltage with very low supply current. LMV981/LMV982 are
capable of driving a 600Ω load and up to 1000pF capacitive
load with minimal ringing. LMV981/LMV982 have a high DC
gain of 101dB, making them suitable for low frequency ap-
plications.
LMV981 is offered in space saving 6-Bump micro SMD,
SC70-6 and SOT23-6 packages. The 6-Bump micro SMD
package has only a 1.006mm x 1.514mm x 0.945mm foot-
print. LMV982 is offered in space saving MSOP-10 package.
These small packages are ideal solutions for area con-
strained PC boards and portable electronics such as cellular
phones and PDAs.
Features
(Typical 1.8V Supply Values; Unless Otherwise Noted)
n Guaranteed 1.8V, 2.7V and 5V specifications
n Output swing
— w/600Ω load
80mV from rail
— w/2kΩ load
30mV from rail
n VCM
n Supply current (per channel)
200mV beyond rails
100µA
n Gain bandwidth product
1.4MHz
n Maximum VOS
n Gain w/600Ω load
4.0mV
101dB
n Ultra tiny package micro SMD
1.0mm x 1.5mm
n Turn-on time from shutdown
19µs
n Temperature range
−40˚C to 125˚C
Applications
n Industrial and automotive
n Consumer communication
n Consumer computing
n PDAs
n Portable audio
n Portable/battery-powered electronic equipment
n Supply current monitoring
n Battery monitoring
Typical Application
© 2002 National Semiconductor Corporation DS200214
200214H0
www.national.com
1 page  
2.7V DC Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for TJ = 25˚C. V+ = 2.7V, V − = 0V, VCM = V+/2, VO = V+/2,
RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (Note 10).
Symbol
Parameter
Condition
Min Typ Max
(Note 6) (Note 5) (Note 6)
VSHDN
Turn-on Voltage to enable
part
1.9
Turn-off Voltage
0.8
Units
V
2.7V AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25˚C. V+ = 2.7V, V − = 0V, VCM = 1.0V, VO = 1.35V,
RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (Note 10).
Symbol
Parameter
Conditions
Min Typ Max
(Note 6)
(Note 5)
(Note 6)
SR Slew Rate
(Note 7)
0.4
GBW
Gain-Bandwidth Product
1.4
Φm Phase Margin
Gm Gain Margin
en Input-Referred Voltage Noise f = 1kHz, VCM = 0.5V
70
7.5
57
Units
V/µs
MHz
deg
dB
in Input-Referred Current Noise f = 1kHz
0.082
THD
Total Harmonic Distortion
Amp-to-Amp Isolation
f = 1kHz, AV = +1
RL = 600kΩ, VIN = 1VPP
(Note 9)
0.022
123
%
dB
5V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for TJ = 25˚C. V+ = 5V, V − = 0V, VCM = V+/2, VO = V+/2,
RL > 1 MΩ and SHDN tied to V+. Boldface limits apply at the temperature extremes. See (Note 10).
Symbol
Parameter
Condition
Min Typ Max
(Note 6) (Note 5) (Note 6)
VOS Input Offset Voltage
LMV981 (Single)
14
6
LMV982 (Dual)
1 5.5
7.5
TCVOS
Input Offset Voltage Average
Drift
5.5
IB Input Bias Current
14 35
50
IOS Input Offset Current
9 25
40
IS Supply Current (per Channel)
116 210
230
In Shutdown LMV981 (Single)
0.201
1
2
LMV982 (Dual)
0.302
3.5
5
CMRR
Common Mode Rejection
Ratio
PSRR
Power Supply Rejection
0 ≤ VCM ≤ 3.8V
4.6V ≤ VCM ≤ 5.0V (Note 8)
−0.2V ≤ VCM ≤ 0V
5.0V ≤ VCM ≤ 5.2V
1.8V ≤ V+ ≤ 5V
60 86
55
50 78
75 100
Ratio
VCM = 0.5V
70
Units
mV
µV/˚C
nA
nA
µA
µA
dB
dB
5 www.national.com
5 Page 
Typical Performance Characteristics Unless otherwise specified, VS = +5V, single supply,
TA = 25˚C. (Continued)
Small Signal Non-Inverting Response
Large Signal Non-Inverting Response
20021472
Large Signal Non-Inverting Response
20021473
Large Signal Non-Inverting Response
20021474
Short Circuit Current vs. Temperature (Sinking)
20021475
Short Circuit Current vs. Temperature (Sourcing)
20021476
11
20021477
www.national.com
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet LMV982.PDF ] | |
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