LMC6462 Dual/LMC6464 Quad Micropower, Rail-to-Rail Input and Output CMOS Operational
Amplifier
May 1999
LMC6462 Dual/LMC6464 Quad
Micropower, Rail-to-Rail Input and Output CMOS
Operational Amplifier
General Description
The LMC6462/4 is a micropower version of the popular
LMC6482/4, combining Rail-to-Rail Input and Output Range
with very low power consumption.
The LMC6462/4 provides an input common-mode voltage
range that exceeds both rails. The rail-to-rail output swing of
the amplifier, guaranteed for loads down to 25 kΩ, assures
maximum dynamic sigal range. This rail-to-rail performance
of the amplifier, combined with its high voltage gain makes it
unique among rail-to-rail amplifiers. The LMC6462/4 is an
excellent upgrade for circuits using limited common-mode
range amplifiers.
The LMC6462/4, with guaranteed specifications at 3V and
5V, is especially well-suited for low voltage applications. A
quiescent power consumption of 60 µW per amplifier (at V
S
= 3V) can extend the useful life of battery operated systems.
The amplifier’s 150 fA input current, low offset voltage of
0.25 mV, and 85 dB CMRR maintain accuracy in
battery-powered systems.
Features
(Typical unless otherwise noted)
n
Ultra Low Supply Current 20 µA/Amplifier
n
Guaranteed Characteristics at 3V and 5V
n
Rail-to-Rail Input Common-Mode Voltage Range
n
Rail-to-Rail Output Swing
(within 10 mV of rail, V
S
= 5V and R
L
= 25 kΩ)
n
Low Input Current 150 fA
n
Low Input Offset Voltage 0.25 mV
Applications
n
n
n
n
n
Battery Operated Circuits
Transducer Interface Circuits
Portable Communication Devices
Medical Applications
Battery Monitoring
8-Pin DIP/SO
14-Pin DIP/SO
DS012051-1
Top View
DS012051-2
Top View
© 1999 National Semiconductor Corporation
DS012051
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Ordering Information
Package
Military
−55˚C to +125˚C
8-Pin Molded DIP
8-Pin SO-8
14-Pin Molded DIP
14-Pin SO-14
8-Pin Ceramic DIP
14-Pin Ceramic DIP
14-Pin Ceramic SOIC
LMC6462AMJ-QML
LMC6464AMJ-QML
LMC6464AMWG-QML
LMC6464AMN
LMC6462AMN
Temperature Range
Industrial
−40˚C to +85˚C
LMC6462AIN, LMC6462BIN
LMC6462AIM, LMC6462BIM
LMC6462AIMX, LMC6462BIMX
LMC6464AIN, LMC6464BIN
LMC6464AIM, LMC6464BIM
LMC6464AIMX, LMC6464BIMX
N08E
M08A
M08A
N14A
M14A
M14A
J08A
J14A
WG14A
Rails
Rails
Tape and Reel
Rails
Rails
Tape and Reel
Rails
Rails
Trays
NSC
Drawing
Transport
Media
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2
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)
Differential Input Voltage
Voltage at Input/Output Pin
Supply Voltage (V
+
− V
−
)
Current at Input Pin (Note 12)
Current at Output Pin
(Notes 3, 8)
Current at Power Supply Pin
Lead Temp. (Soldering, 10 sec.)
Storage Temperature Range
Junction Temperature (Note 4)
2.0 kV
±
Supply Voltage
(V
+
) + 0.3V, (V
−
) − 0.3V
16V
±
5 mA
Operating Ratings
(Note 1)
3.0V
≤
V
+
≤
15.5V
−55˚C
≤
T
J
≤
+125˚C
−40˚C
≤
T
J
≤
+85˚C
−40˚C
≤
T
J
≤
+85˚C
115˚C/W
193˚C/W
81˚C/W
126˚C/W
±
30 mA
40 mA
260˚C
−65˚C to +150˚C
150˚C
Supply Voltage
Junction Temperature Range
LMC6462AM, LMC6464AM
LMC6462AI, LMC6464AI
LMC6462BI, LMC6464BI
Thermal Resistance (θ
JA
)
N Package, 8-Pin Molded DIP
M Package, 8-Pin Surface Mount
N Package, 14-Pin Molded DIP
M Package, 14-Pin
Surface Mount
5V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25˚C, V
+
= 5V, V
−
= 0V, V
CM
= V
O
= V
+
/2 and R
L
>
1M.
Boldface
limits apply at the temperature extremes.
LMC6462AI
Symbol
Parameter
Conditions
Typ
(Note 5)
V
OS
TCV
OS
I
B
I
OS
C
IN
R
IN
CMRR
Input Offset Voltage
Input Offset Voltage
Average Drift
Input Current
Input Offset Current
Common-Mode
Input Capacitance
Input Resistance
Common Mode
Rejection Ratio
0V
≤
V
CM
≤
15.0V,
V
+
= 15V
0V
≤
V
CM
≤
5.0V
V
+
= 5V
+PSRR
−PSRR
V
CM
Positive Power Supply
Rejection Ratio
Negative Power Supply
Rejection Ratio
Input Common-Mode
Voltage Range
5V
≤
V
≤
15V,
V
−
= 0V, V
O
= 2.5V
+
LMC6462BI
LMC6464BI
Limit
(Note 6)
3.0
3.7
LMC6462AM
LMC6464AM
Limit
(Note 6)
0.5
1.5
mV
max
µV/˚C
Units
LMC6464AI
Limit
(Note 6)
0.5
1.2
0.25
1.5
(Note 13)
(Note 13)
0.15
0.075
3
10
5
10
5
200
100
pA max
pA max
pF
Tera
Ω
>
10
85
85
85
85
−0.2
5.30
V
+
= 15V
For CMRR
≥
50 dB
15.30
−0.2
70
67
70
67
70
67
70
67
−0.10
0.00
5.25
5.00
−0.15
0.00
15.25
15.00
65
62
65
62
65
62
65
62
−0.10
0.00
5.25
5.00
−0.15
0.00
15.25
15.00
70
65
70
65
70
65
70
65
−0.10
0.00
5.25
5.00
−0.15
0.00
15.25
15.00
dB
min
dB
min
dB
min
V
max
V
min
V
max
V
min
−5V
≤
V
−
≤
−15V,
V
+
= 0V, V
O
= −2.5V
V = 5V
For CMRR
≥
50 dB
+
3
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5V DC Electrical Characteristics
(Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25˚C, V
+
= 5V, V
−
= 0V, V
CM
= V
O
= V
+
/2 and R
L
>
1M.
Boldface
limits apply at the temperature extremes.
LMC6462AI
Symbol
Parameter
Conditions
Typ
(Note 5)
A
V
Large Signal
Voltage Gain
R
L
= 100 kΩ
(Note 7)
Sinking
R
L
= 25 kΩ
(Note 7)
Sinking
V
O
Output Swing
V = 5V
R
L
= 100 kΩ to V
+
/2
+
LMC6462BI
LMC6464BI
Limit
(Note 6)
LMC6462AM
LMC6464AM
Limit
(Note 6)
V/mV
min
V/mV
min
V/mV
min
V/mV
min
Units
LMC6464AI
Limit
(Note 6)
Sourcing
3000
400
2500
200
4.995
0.005
4.990
4.980
0.010
0.020
4.975
4.965
0.010
0.020
0.035
14.975
14.965
0.010
0.025
0.035
14.900
14.850
0.025
0.050
0.150
19
15
22
17
24
17
55
45
40
80
50
90
55
70
110
140
60
70
120
140
4.950
4.925
0.050
0.075
4.950
4.850
0.050
0.150
14.950
14.925
0.050
0.075
14.850
14.800
0.100
0.200
19
15
22
17
24
17
55
45
55
70
110
140
60
70
120
140
4.990
4.970
0.010
0.030
4.975
4.955
0.020
0.045
14.975
14.955
0.025
0.050
14.900
14.800
0.050
0.200
19
15
22
17
24
17
55
45
55
75
110
150
60
75
120
150
Sourcing
V
min
V
max
V
min
V
max
V
min
V
max
V
min
V
max
mA
min
mA
min
mA
min
mA
min
µA
max
µA
max
µA
max
µA
max
V
+
= 5V
R
L
= 25 kΩ to V
+
/2
4.990
V
+
= 15V
R
L
= 100 kΩ to V
+
/2
14.990
V = 15V
R
L
= 25 kΩ to V
+
/2
+
14.965
I
SC
Output Short Circuit
Current
V+ = 5V
Sourcing, V
O
= 0V
Sinking, V
O
= 5V
Sourcing, V
O
= 0V
Sinking, V
O
= 12V
(Note 8)
Dual, LMC6462
V
+
= +5V, V
O
= V
+
/2
Quad, LMC6464
V
+
= +5V, V
O
= V
+
/2
Dual, LMC6462
V
+
= +15V, V
O
= V
+
/2
Quad, LMC6464
V
+
= +15V, V
O
= V
+
/2
27
27
38
75
I
SC
Output Short Circuit
Current
V
+
= 15V
I
S
Supply Current
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4
5V AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25˚C, V
+
= 5V, V
−
= 0V, V
CM
= V
O
= V
+
/2 and R
L
>
1M.
Boldface
limits apply at the temperature extremes.
LMC6462AI
Symbol
Parameter
Conditions
Typ
(Note 5)
SR
GBW
φ
m
G
m
e
n
i
n
Slew Rate
Gain-Bandwidth Product
Phase Margin
Gain Margin
Amp-to-Amp Isolation
Input-Referred
Voltage Noise
Input-Referred
Current Noise
(Note 10)
f = 1 kHz
V
CM
= 1V
f = 1 kHz
(Note 9)
V = 15V
+
LMC6462BI
LMC6464BI
Limit
(Note 6)
15
8
LMC6462AM
LMC6464AM
Limit
(Note 6)
15
8
V/ms
min
kHz
Deg
dB
dB
Units
LMC6464AI
Limit
(Note 6)
15
8
28
50
50
15
130
80
0.03
3V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25˚C, V
+
= 3V, V
−
= 0V, V
CM
= V
O
= V
+
/2 and R
L
>
1M.
Boldface
limits apply at the temperature extremes.
LMC6462AI
Symbol
Parameter
Conditions
Typ
(Note 5)
V
OS
TCV
OS
I
B
I
OS
CMRR
PSRR
V
CM
Input Offset Voltage
Input Offset Voltage
Average Drift
Input Current
Input Offset Current
Common Mode
Rejection Ratio
Power Supply
Rejection Ratio
Input Common-Mode
Voltage Range
3.0
V
O
Output Swing
R
L
= 25 kΩ to V /2
+
LMC6462BI
LMC6464BI
Limit
(Note 6)
3.0
3.7
LMC6462AM
LMC6464AM
Limit
(Note 6)
2.0
3.0
mV
max
µV/˚C
Units
LMC6464AI
Limit
(Note 6)
2.0
2.7
0.9
2.0
(Note 13)
(Note 13)
0V
≤
V
CM
≤
3V
3V
≤
V
+
≤
15V, V
−
= 0V
For CMRR
≥
50 dB
0.15
0.075
74
80
−0.10
10
5
60
60
0.0
3.0
2.9
0.1
55
70
110
140
10
5
60
60
0.0
3.0
2.9
0.1
55
70
110
140
200
100
60
60
0.0
3.0
2.9
0.1
55
70
110
140
pA
pA
dB
min
dB
min
V
max
V
min
V
min
V
max
µA
µA
max
2.95
0.15
I
S
Supply Current
Dual, LMC6462
V
O
= V
+
/2
Quad, LMC6464
V
O
= V
+
/2
40
80
5
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