LMV751
Low Noise, Low Vos, Single Op Amp
General Description
The LMV751 is a high performance CMOS operational am-
plifier intended for applications requiring low noise and low
input offset voltage. It offers modest bandwidth of 4.5MHz for
very low supply current and is unity gain stable.
The output stage is able to drive high capacitance, up to
1000pF and source or sink 8mA output current.
It is supplied in the space saving SOT23-5 Tiny package.
The LMV751 is designed to meet the demands of small size,
low power, and high performance required by cellular
phones and similar battery operated portable electronics.
Features
n
Low Noise 6.5nV Rt-Hz typ.
n
Low Vos (0.05mV typ.)
n
Wideband 4.5MHz GBP typ.
n
Low Supply Current 500uA typ.
n
Low Suppy Voltage 2.7V to 5.0V
n
Ground-referenced Inputs
n
Unity gain stable
n
Small Package
Applications
n
Cellular Phones
n
Portable Equipment
n
Radio Systems
Connection Diagrams
Ordering Information
Package
Ordering Info
NSC Drawing
Pkg Marking
Supplied As
5-Pin SOT23-5
LMV751M5
MA05B
A32A
1k Units Tape and Reel
LMV751M5X
MA05B
A32A
3k units Tape and Reel
SOT23-5
DS101081-1
Top View
August 1999
LMV751
Low
Noise,
Low
V
os,
Single
Op
Amp
1999 National Semiconductor Corporation
DS101081
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 3)
Human Body Model
2000V
Machine Model
200V
Differential Input Voltage
Supply Voltage
Supply Voltage (V
+
- V
-
)
5.5V
Lead Temperature (Soldering, 10 sec)
260C
Storage Temperature Range
-65C to 150C
Junction Temperature (T
J
) (Note 4)
150C
Recommended Operating
Conditions
Supply Voltage
2.7V to 5.0V
Temperature Range
-40C
T
J
85C
Thermal resisance (
JA
) (Note 6)
M5 Package, SOT23-5
274C/W
2.7V Electrical Characteristics
V
+
= 2.7V, V
-
= 0V, V
CM
= 1.35V, T
A
= 25C unless otherwise stated. Boldface limits apply over theTemperature Range.
Symbol
Parameter
Condition
Typ
(Note 5)
Limit
(Note 2)
Units
V
OS
Input Offset Voltage
0.05
1.0
1.5
mV
max
CMRR
Common Mode Rejection Ratio
0V
<
V
CM
<
1.3V
100
85
70
dB
min
PSRR
Power Supply Rejection Ratio
V
+
=2.7V to 5.0V
107
85
70
dB
min
I
S
Supply Current
0.5
0.7
0.75
mA
max
I
IN
Input Current
1.5
100
pA
max
I
OS
Input Offset Current
0.2
pA
A
VOL
Voltage Gain
R
L
= 10k Connect to V
+
/2
V
O
= 0.2V to 2.2V
120
110
95
dB
min
R
L
= 2k Connect to V
+
/2
V
O
= 0.2V to 2.2V
120
100
85
V
O
Positive Voltage Swing
R
L
= 10k Connect to V
+
/2
2.62
2.54
2.52
V
min
R
L
= 2k Connect to V
+
/2
2.62
2.54
2.52
V
O
NegativeVoltage Swing
R
L
= 10k Connect to V
+
/2
78
140
160
mV
max
R
L
= 2k Connect to V
+
/2
78
140
160
I
O
Output Current
Sourcing, V
O
= 0V
V
IN
(diff) =
0.5V
12
6.0
1.5
mA
min
Sinking,V
O
= 2.7V
V
IN
(diff) =
0.5V
11
6.0
1.5
e
n
(10Hz)
Input Referred Voltage Noise
15.5
nV/
e
n
(1kHz)
Input Referred Voltage Noise
7
nV/
e
n
(30kHz)
Input Referred Voltage Noise
7
10
nV/
max
I
N
(1kHz)
Input Referred Current Noise
0.01
pA/
GBW
Gain-Bandwidth Product
4.5
2
MHZ
min
SR
Slew Rate
2
V/s
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2
5.0V Electrical Characteristics
V
+
= 5.0V, V
-
= 0V, V
CM
= 2.5V, T
A
= 25C unless otherwise stated.Boldface limits apply over theTemperature Range.
Symbol
Parameter
Typ
(Note 5)
Limit
(Note 2)
Units
V
OS
Input Offset Voltage
0.05
1.0
1.5
mV
max
CMRR
Common Mode Rejection Ratio
0V
<
V
CM
<
3.6V
103
85
70
dB
min
PSRR
Power Supply Rejection Ratio
V
+
= 2.7V to 5.0V
107
85
70
dB
min
I
S
Supply Current
0.6
0.8
0.85
mA
max
I
IN
Input Current
1.5
100
pA
max
I
OS
Input offset Current
0.2
pA
A
VOL
Voltage Gain
R
L
= 10k Connect to V
+
/2
V
O
= 0.2V to 4.5V
120
110
95
db
min
R
L
= 2k Connect to V
+
/2
V
O
= 0.2V to 4.5V
120
100
85
V
O
Positive Voltage Swing
R
L
= 10k Connect to V
+
/2
4.89
4.82
4.80
V
min
R
L
= 2k Connect to V
+
/2
4.89
4.82
4.80
V
O
Negative Voltage Swing
R
L
= 10k Connect to V
+
/2
86
160
180
mV
max
R
L
= 2k Connect to V
+
/2
86
160
180
I
O
Output Current
Sourcing, V
O
= 0V
V
IN
(diff) =
0.5V
15
8.0
2.5
mA
min
Sinking, V
O
= 5V
V
IN
(diff) =
0.5V
20
8.0
2.5
e
n
(10Hz)
Input Referred Voltage Noise
15
nV/
e
n
(1kHz)
Input Referred Voltage Noise
6.5
nV/
e
n
(30kHz)
Input Referred Voltage Noise
6.5
10
nV/
max
I
N
(1kHz)
Input Referred Current Noise
0.01
pA/
GBW
Gain-Bandwidth Product
5
2
MHz
min
SR
Slew Rate
2.3
V/s
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
beyond its rated operating conditions.
Note 2: All limits are guaranteed by testing or statistical analysis
Note 3: Human body model, 1.5k
in series with 100pF. Machine model, 200
in series with 1000pF.
Note 4: 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 5: Typical values represent the most likely parametric norm.
Note 6: All numbers are typical, and apply to packages soldered directly onto PC board in still air.
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3
Typical Performance Characteristics
Supply Curent vs. Voltage
DS101081-35
V
OS
vs. V
CM
V
+
= 2.7V
DS101081-38
V
OS
vs V
CM
V
+
= 5.0V
DS101081-37
Source Current vs Out
V
+
= 2.7V
DS101081-28
Source Current vs V
OUT
V
+
= 5.0V
DS101081-29
Gain/Phase
DS101081-3
Sinking Current vs V
OUT
V
+
= 2.7V
DS101081-30
Sinking Current vs V
OUT
V
+
= 5.0V
DS101081-31
V
OS
vs V
+
DS101081-36
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4
Typical Performance Characteristics
(Continued)
V
IN
vs V
OUT
V
+
= 2.7V, R
L
= 2k
DS101081-32
V
IN
vs V
OUT
V
+
= 5.0V, R
L
= 2k
DS101081-33
Input Bias vs V
CM
T
A
= 25C
DS101081-16
Input Bias vs V
CM
T
A
= 85C
DS101081-5
PSRR +
DS101081-26
PSRR -
DS101081-25
Voltage Noise
DS101081-2
CMRR
DS101081-39
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5
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