LMV341/LMV342/LMV344
Single with Shutdown/Dual/Quad General Purpose, 2.7V,
Rail-to-Rail Output, 125C, Operational Amplifiers
General Description
The LMV341/342/344 are single, dual, and quad low volt-
age, and low power Operational Amplifiers. They are de-
signed specifically for low voltage portable applications.
Other important product characteristics are low input bias
current, rail-to-rail output, and wide temperature range.
The patented class AB turnaround stage significantly re-
duces the noise at higher frequencies, power consumption,
and offset voltage. The PMOS input stage provides the user
with ultra-low input bias current of 20fA (typical) and high
input impedance.
The industrial-plus temperature range of -40C to 125C
allows the LMV341/342/344 to accommodate a broad range
of extended environment applications. LMV341 expands Na-
tional Semiconductor's Silicon Dust
TM
amplifier portfolio of-
fering enhancements in size, speed, and power savings. The
LMV341/342/344 are guaranteed to operate over the voltage
range of 2.7V to 5.0V and all have rail-to-rail output.
The LMV341 offers a shutdown pin that can be used to
disable the device. Once in shutdown mode, the supply
current is reduced to 45pA (typical). The LMV341/342/344
have 29nV Voltage Noise at 10KHz, 1MHz GBW, 1.0V/s
Slew
Rate,
0.25mVos,
and
0.1A shutdown
current
(LMV341.)
The LMV341 is offered in the tiny SC70-6L package, the
LMV342 in space saving MSOP-8 and SOIC-8, and the
LMV344 in TSSOP-14 and SOIC-14. These small package
amplifiers offer an ideal solution for applications requiring
minimum PC board footprint. Applications with area con-
strained PC board requirements include portable electronics
such as cellular handsets and PDAs.
Features
(Typical 2.7V Supply Values;Unless Otherwise Noted)
n
Guaranteed 2.7V and 5V specifications
n
Input referred voltage noise (
@
10kHz)
29nV/
n
Supply current (per amplifier)
100A
n
Gain bandwidth product
1.0MHz
n
Slew rate
1.0V/s
n
Shutdown Current (LMV341)
45pA
n
Turn-on time from shutdown (LMV341)
5s
n
Input bias current
20fA
Applications
n
Cordless/cellular phones
n
Laptops
n
PDAs
n
PCMCIA/Audio
n
Portable/battery-powered electronic equipment
n
Supply current monitoring
n
Battery monitoring
n
Buffer
n
Filter
n
Driver
Connection Diagram
SC70-6L
20030441
Top View
Order Number
LMV341MG, LMV341MGX
LMV342MM, LMV342MMX
LMV342MA, LMV342MAX
LMV344MT, LMV344MTX
LMV344MA, LMV344MAX
Sample and Hold Circuit
20030444
March 2003
LMV341/LMV342/LMV344
Single
with
Shutdown/Dual/Quad
General
Purpose,
2.7V
,
Rail-to-Rail
Output,
125C,
Operational
Amplifiers
2003 National Semiconductor Corporation
DS200304
www.national.com
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
ESD Tolerance (Note 2)
Machine Model
200V
Human Body Model
2000V
Differential Input Voltage
Supply Voltage
Supply Voltage (V
+
-V
-
)
5.5V
Output Short Circuit to V
+
(Note 3)
Output Short Circuit to V
-
(Note 4)
Storage Temperature Range
-65C to 150C
Junction Temperature (Note 5)
150C
Mounting Temperature
Infrared or Convection Reflow
(20 sec.)
235C
Wave Soldering Lead Temp.
(10 sec.)
260C
Operating Ratings
(Note 1)
Temperature Range
-40C to 125C
Thermal Resistance (
JA
)
6-Pin SC70
414C/W
8-Pin SOIC
190C/W
8-Pin MSOP
235C/W
14-Pin TSSOP
155C/W
14-Pin SOIC
145C/W
2.7V DC Electrical Characteristics
(Note 10)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 2.7V, V
-
= 0V, V
CM
= V
+
/2, V
O
= V
+
/2 and R
L
>
1M
.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
V
OS
Input Offset Voltage
LMV341
0.25
4
4.5
mV
LMV342/LMV344
0.55
5
5.5
TCV
OS
Input Offset Voltage Average
Drift
1.7
V/C
I
B
Input Bias Current
0.02
120
250
pA
I
OS
Input Offset Current
6.6
fA
I
S
Supply Current
Per Amplifier
100
170
230
A
Shutdown Mode, V
SD
= 0V
(LMV341)
45pA
1A
1.5A
CMRR
Common Mode Rejection
Ratio
0V
V
CM
1.7V
0V
V
CM
1.6V
56
50
80
dB
PSRR
Power Supply Rejection Ratio
2.7V
V
+
5V
65
60
82
dB
V
CM
Input Common Mode Voltage
For CMRR
50dB
0
-0.2 to 1.9
(Range)
1.7
V
A
V
Large Signal Voltage Gain
R
L
= 10k
to 1.35V
78
70
113
dB
R
L
= 2k
to 1.35V
72
64
103
V
O
Output Swing
R
L
= 2k
to 1.35V
24
60
95
mV
60
95
26
R
L
= 10k
to 1.35V
5.0
30
40
30
40
5.3
LMV341/LMV342/LMV344
www.national.com
2
2.7V DC Electrical Characteristics
(Note 10) (Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 2.7V, V
-
= 0V, V
CM
= V
+
/2, V
O
= V
+
/2 and R
L
>
1M
.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
I
O
Output Short Circuit Current
Sourcing
LMV341/LMV342
20
32
mA
Sourcing
LMV344
18
24
Sinking
15
24
t
on
Turn-on Time from Shutdown
(LMV341)
5
s
V
SD
Shutdown Pin Voltage Range
ON Mode (LMV341)
1.7 to 2.7
2.4 to 2.7
V
Shutdown Mode (LMV341)
0 to 1
0 to 0.8
2.7V AC Electrical Characteristics
(Note 10)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 2.7V, V
-
= 0V, V
CM
= V
+
/2, V
O
= V
+
/2 and R
L
>
1M
.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
SR
Slew Rate
R
L
= 10k
, (Note 9)
1.0
V/s
GBW
Gain Bandwidth Product
R
L
= 100k
, C
L
= 200pF
1.0
MHz
m
Phase Margin
R
L
= 100k
72
deg
G
m
Gain Margin
R
L
= 100k
20
dB
e
n
Input-Referred Voltage Noise
f = 1kHz
40
nV/
i
n
Input-Referred Current Noise
f = 1kHz
0.001
pA/
THD
Total Harmonic Distortion
f = 1kHz, A
V
= +1
R
L
= 600
, V
IN
= 1V
PP
0.017
%
5V DC Electrical Characteristics
(Note 10)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 5V, V
-
= 0V, V
CM
= V
+
/2, V
O
= V
+
/2 and R
L
>
1M
.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
V
OS
Input Offset Voltage
LMV341
0.025
4
4.5
mV
LMV342/LMV344
0.70
5
5.5
TCV
OS
Input Offset Voltage Average
Drift
1.9
V/C
I
B
Input Bias Current
0.02
200
375
pA
I
OS
Input Offset Current
6.6
fA
I
S
Supply Current
Per Amplifier
107
200
260
A
Shutdown Mode, V
SD
= 0V
(LMV341)
0.033
1
1.5
A
CMRR
Common Mode Rejection
Ratio
0V
V
CM
4.0V
0V
V
CM
3.9V
56
50
86
dB
PSRR
Power Supply Rejection Ratio
2.7V
V
+
5V
65
60
82
dB
V
CM
Input Common Mode Voltage
For CMRR
50dB
0
-0.2 to 4.2
(Range)
4
V
LMV341/LMV342/LMV344
www.national.com
3
5V DC Electrical Characteristics
(Note 10) (Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 5V, V
-
= 0V, V
CM
= V
+
/2, V
O
= V
+
/2 and R
L
>
1M
.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
A
V
Large Signal Voltage Gain
(Note 8)
R
L
= 10k
to 2.5V
78
70
116
dB
R
L
= 2k
to 2.5V
72
64
107
V
O
Output Swing
R
L
= 2k
to 2.5V
32
60
95
mV
60
95
34
R
L
= 10k
to 2.5V
7
30
40
mV
30
40
7
I
O
Output Short Circuit Current
Sourcing
85
113
mA
Sinking
50
75
t
on
Turn-on Time from Shutdown
(LMV341)
5
s
V
SD
Shutdown Pin Voltage Range
ON Mode (LMV341)
3.1 to 5
4.5 to 5.0
V
Shutdown Mode (LMV341)
0 to 1
0 to 0.8
5V AC Electrical Characteristics
(Note 10)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 5V, V
-
= 0V, V
CM
= V
+
/2, V
O
= V
+
/2 and R
L
>
1M
.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
SR
Slew Rate
R
L
= 10k
, (Note 9)
1.0
V/s
GBW
Gain-Bandwidth Product
R
L
= 10k
, C
L
= 200pF
1.0
MHz
m
Phase Margin
R
L
= 100k
70
deg
G
m
Gain Margin
R
L
= 100k
20
dB
e
n
Input-Referred Voltage Noise
f = 1kHz
39
nV/
i
n
Input-Referred Current Noise
f = 1kHz
0.001
pA/
THD
Total Harmonic Distortion
f = 1 kHz, A
V
= +1
R
L
= 600
, V
IN
= 1V
PP
0.012
%
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended 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, 1.5k
in series with 100pF. Machine model, 0 in series with 200pF.
Note 3: Shorting output to V
+
will adversely affect reliability.
Note 4: Shorting output to V
-
will adversely affect reliability.
Note 5: The maximum power dissipation is a function of T
J(MAX)
,
JA
, and T
A
. The maximum allowable power dissipation at any ambient temperature is P
D
=
(T
J(MAX)
T
A
)/
JA
. All numbers apply for packages soldered directly into a PC board.
Note 6: Typical values represent the most likely parametric norm.
Note 7: All limits are guaranteed by testing or statistical analysis.
Note 8: R
L
is connected to mid-supply. The output voltage is GND + 0.2V
V
O
V
+
-0.2V
Note 9: Connected as voltage follower with 2V
PP
step input. Number specified is the slower of the positive and negative slew rates.
Note 10: Electrical Table values apply only for factory testing conditions at the temperature indicated. Factory testing conditions result in very limited self-heating
of the device such that T
J
= T
A
. No guarantee of parametric performance is indicated in the electrical tables under conditions of internal self heating where T
J
>
T
A
.
LMV341/LMV342/LMV344
www.national.com
4
Connection Diagrams
SC70-6L
8-Pin MSOP/SOIC
14-Pin TSSOP/SOIC
20030441
Top View
20030451
Top View
20030452
Top View
Ordering Information
Package
Part Number
Package Marking
Transport Media
NSC Drawing
6-Pin SC70
LMV341MG
A78
1k Units Tape and Reel
MAA06A
LMV341MGX
3k Units Tape and Reel
8-Pin MSOP
LMV342MM
A82A
1k Units Tape and Reel
MUA08A
LMV342MMX
3.5k Units Tape and Reel
8-Pin SOIC
LMV342MA
LMV342MA
95 Units/Rail
M08A
LMV342MAX
2.5k Units Tape and Reel
14-Pin TSSOP
LMV344MT
LMV344MT
Rails
MTC14
LMV344MTX
2.5k Units Tape and Reel
14-Pin SOIC
LMV344MA
LMV344MA
55 Units/Rail
M14A
LMV344MAX
2.5k Units Tape and Reel
LMV341/LMV342/LMV344
www.national.com
5
PDF 
ZIP