LMC8101
Rail-to-Rail Input and Output, 2.7V Op Amp in
micro SMD package with Shutdown
General Description
The LMC8101 is a Rail-to-Rail Input and Output high perfor-
mance CMOS operational amplifier. The LMC8101 is ideal
for low voltage (2.7V to 10V) applications requiring
Rail-to-Rail inputs and output. The LMC8101 is supplied in
the die sized micro SMD as well as the 8 pin MSOP pack-
ages. The micro SMD package requires 75% less board
space as compared to the SOT23-5 package. The LMC8101
is an upgrade to the industry standard LMC7101.
The LMC8101 incorporates a simple user controlled method-
ology for shutdown. This allows ease of use while reducing
the total supply current to 1nA typical. This extends battery
life where power saving is mandated. The shutdown input
threshold can be set relative to either V
+
or V
-
using the SL
pin (see Application Note section for details).
Other enhancements include improved offset voltage limit,
three times the output current drive and lower 1/f noise when
compared to the industry standard LMC7101 Op Amp. This
makes the LMC8101 ideal for use in many battery powered,
wireless communication and Industrial applications.
Features
V
S
= 2.7V, T
A
= 25C, R
L
to V
+
/2, Typical values unless
specified.
n
Rail-to-Rail Inputs
n
Rail-to-Rail Output
Swing
Within 35mV of Supplies (R
L
=2k
)
n
Packages Offered:
n
micro SMD package
1.39mm x 1.41mm
n
MSOP package
3.0mm x 4.9mm
n
Low Supply Current
<
1mA (max)
n
Shutdown Current
1A (max)
n
Versatile Shutdown feature
10s turn-on
n
Output Short Circuit Current
10mA
n
Offset Voltage
5 mV (max)
n
Gain-Bandwidth
1MHz
n
Supply Voltage Range
2.7V-10V
n
THD
0.18%
n
Voltage Noise
36
Applications
n
Portable Communication (voice, data)
n
Cellular Phone Power Amp Control Loop
n
Buffer AMP
n
Active Filters
n
Battery Sense
n
VCO Loop
Connection Diagrams
8-Pin MSOP
DS101240-79
Top View
micro SMD
DS101240-80
Top View
September 1999
LMC8101
Rail-to-Rail
Input
and
Output,
2.7V
Op
Amp
in
micro
SMD
package
with
Shutdown
1999 National Semiconductor Corporation
DS101240
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Ordering Information
Package
Ordering Information
NSC Drawing
Number
Package
Marking
Supplied As
micro SMD
LMC8101BP
BPA08EFB
A
2
250 Units Tape and Reel
LMC8101BPX
3k Units Tape and Reel
8-Pin MSOP
LMC8101MM
MUA08A
A11
1k Units Tape and Reel
LMC8101MMX
3.5k Units Tape and Reel
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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
2KV (Note 2)
200V (Note 13)
V
IN
differential
+/-Supply Voltage
Output Short Circuit Duration
(Notes 3, 11)
Supply Voltage (V
+
- V
-
)
12V
Voltage at Input/Output pins
V
+
+0.8V, V
-
-0.8V
Current at Input Pin
+/-10mA
Current at Output Pin
(Notes 3, 12)
+/-80mA
Current at Power Supply pins
+/-80mA
Storage Temperature Range
-65C to +150C
Junction Temperature(Note 4)
+150C
Soldering Information
Infrared or Convection (20 sec.)
235C
Wave Soldering (10 sec.)
260C
Operating Ratings
(Note 1)
Supply Voltage (V
+
- V
-
)
2.7V to 10V
Junction Temperature Range
(Note 4)
-40C to +85C
Package Thermal Resistance (
JA
) (Note 4)
micro SMD
220C/W
MSOP pkg. 8 pin Surface Mount
230C/W
2.7V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 2.7V, V
-
= 0V, V
CM
= V
O
= V
+
/2 and R
L
>
1 M
to V
+
/2.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
(Note 5)
Limit
(Note 6)
Units
V
OS
Input Offset Voltage
0.70
5
7
mV
max
TCV
OS
Input Offset Voltage Average Drift
4
V/C
I
B
Input Bias Current
(Note 7)
1
64
pA
max
I
OS
Input Offset Current
0.5
32
pA
max
R
in CM
Input Common Mode Resistance
10
G
C
in CM
Input Common Mode Capacitance
10
pF
CMRR
Common Mode Rejection Ratio
0V
<
= V
CM
<
= 2.7V
78
60
dB
min
V
S
= 3V
0V
<
= V
CM
<
= 3V
78
64
60
PSRR
Power Supply Rejection Ratio
V
S
= 2.7V to 3V
57
50
48
dB
min
CMVR
Input Common-Mode Voltage Range
V
S
= 2.7V
CMRR
>
= 50dB
0.0
0.0
V
max
3.0
2.7
V
min
V
S
= 3V
CMRR
>
= 50dB
-0.2
-0.1
V
max
3.2
3.1
V
min
A
VOL
Large Signal Voltage Gain
Sourcing
R
L
= 2k
to V
+
/2
V
O
= 1.35V to 2.45V
3162
1000
562
V/V
min
Sinking
R
L
= 2k
to V
+
/2
V
O
= 1.35V to 0.25V
3162
804
562
Sourcing
R
L
= 10k
to V
+
/2
V
O
= 1.35V to 2.65V
4000
1778
1000
V/V
min
Sinking
R
L
= 10k
to V
+
/2
V
O
= 1.35V to 0.05V
4000
1778
1000
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3
2.7V Electrical Characteristics
(Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 2.7V, V
-
= 0V, V
CM
= V
O
= V
+
/2 and R
L
>
1 M
to V
+
/2.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
(Note 5)
Limit
(Note 6)
Units
V
O
Output Swing
High
R
L
= 2k
to V
+
/2
V
ID
= 100mV
2.67
2.64
2.62
V
min
R
L
= 10k
to V
+
/2
V
ID
= 100mV
2.69
2.68
2.67
V
min
Output Swing
Low
R
L
= 2k
to V
+
/2
V
ID
= -100mV
32
100
150
mV
max
R
L
= 10k
to V
+
/2
V
ID
= -100mV
10
30
70
mV
max
I
SC
Output Short Circuit Current
Sourcing to V
+
/2
V
ID
= 100mV (Note 11)
20
14
6
mA
min
Sinking to V
+
/2
V
ID
= -100mV (Note 11)
10
5
4
mA
min
I
S
Supply Current
No load, normal operation
0.70
1.0
1.2
mA
max
Shutdown mode
0.001
1
A
max
T
on
Shutdown Turn-on time
(Note 9)
10
15
s
T
off
Shutdown Turn-off time
(Note 9)
1
s
I
in
SL
and
SD
Input Current
1
64
pA
max
SR
Slew Rate (Note 8)
A
V
= +1, R
L
= 10k
to V
+
/2
V
I
= 1V
PP
1
0.8
V/s
min
f
u
Unity Gain-Bandwidth
V
I
= 10mV, R
L
= 2k
to V
+
/2
750
KHz
GBW
Gain Bandwidth Product
f = 100KHz
1
MHz
e
n
Input-Referred Voltage Noise
f = 10KHz, R
S
= 50
36
i
n
Input-Referred Current Noise
f = 10KHz
1.5
THD
Total Harmonic Distortion
f = 1KHz, AV = +1,
V
O
= 2.2Vpp,
R
L
= 600
to V
+
/2
0.18
%
+/-5V Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
=5V, V
-
= -5V, V
CM
= V
O
= 0V, and R
L
>
1 M
to gnd.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
(Note 5)
Limit
(Note 6)
Units
V
OS
Input Offset Voltage
0.7
5
7
mV
max
TCV
os
Input Offset Voltage Average Drift
4
V/C
I
B
Input Bias Current
(Note 7)
1
64
pA
max
I
OS
Input Offset Current
0.5
32
pA
max
R
in CM
Input Common Mode Resistance
10
G
C
in CM
Input Common Mode Capacitance
10
pF
CMRR
Common-Mode Rejection Ratio
-5V
<
= V
CM
<
= 5V
87
70
67
dB
min
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4
+/-5V Electrical Characteristics
(Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
=5V, V
-
= -5V, V
CM
= V
O
= 0V, and R
L
>
1 M
to gnd.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
(Note 5)
Limit
(Note 6)
Units
PSRR
Power Supply Rejection Ratio
V
S
= 5V to 10V
80
76
72
dB
min
CMVR
Input Common-Mode Voltage Range
CMRR
50 dB
-5.3
-5.2
-5.0
V
max
5.3
5.2
5.0
V
min
A
VOL
Large Signal Voltage Gain
Sourcing
R
L
= 600
V
O
= 0V to 4V
34.5
17.8
10
V/mV
min
Sinking
R
L
= 600
V
O
= 0V to -4V
34.5
17.8
3.16
Sourcing
R
L
= 2k
V
O
= 0V to 4.6V
138
31.6
17.8
V/mV
min
Sinking
R
L
= 2k
V
O
= 0V to -4.6V
138
31.6
10
V
O
Output Swing
High
R
L
= 600
V
ID
= 100mV
4.73
4.60
4.54
V
min
R
L
= 2k
V
ID
= 100mV
4.90
4.85
4.83
V
min
Output Swing
Low
R
L
= 600
V
ID
= -100mV
-4.85
-4.75
-4.65
V
max
R
L
= 2k
V
ID
= -100mV
-4.95
4.90
-4.84
V
max
I
SC
Output Short Circuit Current
Sourcing, V
ID
= 100mV
(Note 3),(Note 11)
49
30
25
mA
min
Sinking, V
ID
= -100mV
(Note 3),(Note 11)
90
60
52
mA
min
I
S
Supply Current
No load, normal operation
1.1
1.7
1.9
mA
max
Shutdown mode
0.001
1
A
T
on
Shutdown Turn-on time
(Note 9)
10
15
s
T
off
Shutdown Turn-off time
(Note 9)
1
s
I
in
SL
and
SD
Input Current
1
64
pA
max
SR
Slew Rate
(Note 8)
A
V
= +10, R
L
= 10k
,
V
O
= 10Vpp, C
L
= 1000pF
1.2
V/s
f
u
Unity Gain-Bandwidth
V
I
= 10mV
R
L
= 2k
840
KHz
GBW
Gain Bandwidth Product
f = 10KHz
1.3
MHz
e
n
Input-Referred Voltage Noise
f = 10KHz, R
s
= 50
33
i
n
Input-Referred Current Noise
f = 10KHz
1.5
THD
Total Harmonic Distortion
f = 10KHz, AV = +1,
V
O
=8Vpp, R
L
= 600
0.2
%
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