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PDF LMV924M Data sheet ( Hoja de datos )
| Número de pieza | LMV924M | |
| Descripción | 1.8V / 1MHz / Low Power Operational Amplifiers with Rail-To-Rail Input and Output | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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December 1999
LMV921 Single/ LMV922 Dual/ LMV924 Quad
1.8V, 1MHz, Low Power Operational Amplifiers with
Rail-To-Rail Input and Output
General Description
The LMV921 Single/LMV922 Dual/LMV924 Quad are guar-
anteed to operate from +1.8V to +5.0V supply voltages and
have rail-to-rail input and output. This rail-to-rail operation
enables the user to make full use of the entire supply voltage
range. The input common mode voltage range extends
300mV beyond the supplies and the output can swing
rail-to-rail unloaded and within 100mV from the rail with
600Ω load at 1.8V supply. The LMV921/LMV922/LMV924
are optimized to work at 1.8V which make them ideal for por-
table two-cell battery-powered systems and single cell Li-Ion
systems.
The LMV921/LMV922/LMV924 exhibit excellent
speed-power ratio, achieving 1MHz gain bandwidth product
at 1.8V supply voltage with very low supply current. The
LMV921/LMV922/LMV924 are capable of driving 600Ω load
and up to 1000pF capacitive load with minimal ringing. The
LMV921/LMV922/LMV924’s high DC gain of 100dB makes
them suitable for low frequency applications.
The LMV921 (Single) is offered in a space saving SC70–5
and SOT23–5 packages. The SC70–5 package is only
2.0X2.1X1.0mm. These small packages are ideal solutions
for area constrained PC boards and portable electronics
such as cellphones and PDAs.
Features
(Typical 1.8V Supply Values; Unless Otherwise Noted)
n Guaranteed 1.8V, 2.7V and 5V specifications
n Rail-to-Rail input & output swing
— w/600Ω load
100 mV from rail
— w/2kΩ load
30 mV from rail
n VCM
n 90dB gain w/600Ω load
300mV beyond rails
n Supply current
145µA/amplifier
n Gain bandwidth product
1MHz
n LMV921 Maximum VOS
6mV
n LMV921 available in Ultra Tiny, SC70-5 package
n LMV922 available in MSOP-8 package
n LMV924 available in TSSOP-14 package
Applications
n Cordless/cellular phones
n Laptops
n PDAs
n PCMCIA
n Portable/battery-powered electronic Equipment
n Supply current Monitoring
n Battery monitoring
Connection Diagrams
5-Pin SC70-5/SOT23-5
8-Pin MSOP/SOIC
DS100979-84
Top View
Top View
DS100979-2
© 1999 National Semiconductor Corporation DS100979
www.national.com
1 page  
2.7V DC Electrical Characteristics (Continued)
Unless
RL > 1
otherwise specified, all limits guaranteed for TJ = 25˚C. V+
MΩ. Boldface limits apply at the temperature extremes.
=
2.7V,
V
−
=
0V,
VCM
=
V+/2,
VO
=
V+/2
and
Symbol
Parameter
Condition
Typ
(Note 5)
Limits
(Note 6)
IS Supply Current
LMV921 (Single)
147 190
210
LMV922 (Dual)
380 450
600
LMV924 (Quad)
580 750
900
CMRR Common Mode Rejection Ratio 0V ≤ VCM ≤ 1.5V
84 62
60
PSRR
VCM
Power Supply Rejection Ratio
Input Common-Mode Voltage
Range
−0.2V ≤ VCM ≤ 0V
2.7V ≤ VCM < 2.9V
1.8V ≤ V+ ≤ 5V,
VCM = 0.5V
For CMRR ≥ 50dB
73 50
78 67
62
-0.3 -0.2
0
3.050
2.9
2.7
AV
Large Signal Voltage Gain
RL = 600Ω to 1.35V,
LMV921 (Single)
VO = 0.2V to 2.5V
RL = 2kΩ to 1.35V,
VO = 0.2V to 2.5V
Large Signal Voltage Gain
LMV922 (Dual)
RL = 600Ω to 1.35V,
VO = 0.2V to 2.5V
LMV924 (Quad)
RL = 2kΩ to 1.35V,
VO = 0.2V to 2.5V
VO Output Swing
RL = 600Ω to 1.35V
VIN = ± 100mV
98
103
86
91
2.62
0.075
80
75
83
77
68
63
71
65
2.550
2.530
0.095
0.115
RL = 2kΩ to 1.35V
VIN = ± 100mV
2.675
0.025
2.650
2.640
0.040
0.045
IO
Output Short Circuit Current
Sourcing, VO = 0V
VIN = 100mV
Sinking, VO = 2.7V
VIN = −100mV
27 20
15
28 22
16
Units
uA
max
dB
min
dB
min
V
max
V
min
dB
min
dB
min
V
min
V
max
V
min
V
max
mA
min
mA
min
2.7V AC Electrical Characteristics
Unless
RL > 1
otherwise specified, all limits guaranteed for TJ = 25˚C. V+
MΩ. Boldface limits apply at the temperature extremes.
=
2.7V,
V
−
=
0V,
VCM
=
1.0V,
VO
=
1.35V
and
Symbol
Parameter
Conditions
Typ
(Note 5)
SR Slew Rate
(Note 7)
0.41
GBW
Gain-Bandwidth Product
1
Φm Phase Margin
Gm Gain Margin
en
Input-Referred Voltage Noise
f = 1 kHz, VCM = 0.5V
65
10
45
Units
V/µs
MHz
Deg.
dB
in
Input-Referred Current Noise
f = 1 kHz
0.1
5 www.national.com
5 Page 
Typical Performance Characteristics Unless otherwise specified, VS = +5V, single supply,
TA = 25˚C. (Continued)
CMRR vs.
Frequency
PSRR vs.
Frequency
Input Voltage Noise vs.
Frequency
DS100979-C7
Input Current Noise vs.
Frequency
THD vs.
Frequency
DS100979-C6
THD vs.
Frequency
DS100979-F4
Slew Rate vs.
Supply Voltage
DS100979-F5
DS100979-D4
Small Signal
Non-Inverting Response
DS100979-D3
Small Signal
Non-Inverting Response
DS100979-99
DS100979-E3
DS100979-E2
11 www.national.com
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet LMV924M.PDF ] | |
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