LMC6035/LMC6036
Low Power 2.7V Single Supply CMOS Operational
Amplifiers
General Description
The LMC6035/6 is an economical, low voltage op amp ca-
pable of rail-to-rail output swing into loads of 600
.
LMC6035 is available in a chip sized package (8-Bump mi-
cro SMD) using National's micro SMD package technology.
Both allow for single supply operation and are guaranteed
for 2.7V, 3V, 5V and 15V supply voltage. The 2.7 supply volt-
age corresponds to the End-of-Life voltage (0.9V/cell) for
three NiCd or NiMH batteries in series, making the
LMC6035/6 well suited for portable and rechargeable sys-
tems. It also features a well behaved decrease in its specifi-
cations at supply voltages below its guaranteed 2.7V opera-
tion. This provides a "comfort zone" for adequate operation
at voltages significantly below 2.7V. Its ultra low input cur-
rents (I
IN
) makes it well suited for low power active filter ap-
plication, because it allows the use of higher resistor values
and lower capacitor values. In addition, the drive capability of
the LMC6035/6 gives these op amps a broad range of appli-
cations for low voltage systems.
Features
(Typical Unless Otherwise Noted)
n
LMC6035 in micro SMD Package
n
Guaranteed 2.7V, 3V, 5V and 15V Performance
n
Specified for 2 k
and 600
Loads
n
Wide Operating Range:
2.0V to 15.5V
n
Ultra Low Input Current:
20 fA
n
Rail-to-Rail Output Swing
@
600
:
200 mV from either rail at 2.7V
@
100 k
:
5 mV from either rail at 2.7V
n
High Voltage Gain:
126dB
n
Wide Input Common-Mode Voltage Range
-0.1V to 2.3V at Vs = 2.7V
n
Low Distortion:
0.01% at 10 kHz
Applications
n
Filters
n
High Impedance Buffer or Preamplifier
n
Battery Powered Electronics
n
Medical Instrumentation
Connection Diagrams
8-Pin SO/MSOP
DS012830-1
Top View
14-Pin SO/TSSOP
DS012830-2
Top View
8-Bump micro SMD
DS012830-65
Top View
(Bump Side Down)
January 2000
LMC6035/LMC6036
Low
Power
2.7V
Single
Supply
CMOS
Operational
Amplifiers
2000 National Semiconductor Corporation
DS012830
www.national.com
Ordering Information
Package
Temperature
Range
Transport
Media
NSC
Drawing
Industrial
-40C to +85C
8-pin Small Outline (SO)
LMC6035IM
Rails
M08A
LMC6035IMX
2.5k Units
Tape and
Reel
8-pin Mini Small Outline
(MSOP)
LMC6035IMM
1k Units Tape
and Reel
MUA08A
LMC6035IMMX
3.5k Units
Tape and
Reel
14-pin Small Outline (SO)
LMC6036IM
Rails
M14A
LMC6036IMX
2.5k Units
Tape and
Reel
14-pin Thin Shrink Small
Outline (TSSOP)
LMC6036IMT
Rails
MTC14
LMC6036IMTX
2.5k Units
Tape and
Reel
8-Bump micro SMD
LMC6035IBP
250 Units
Tape and
Reel
BPA08FFB
LMC6035IBPX
3k Units Tape
and Reel
LMC6035/LMC6036
www.national.com
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)
Human Body Model
3000V
Machine Model
300V
Differential Input Voltage
Supply Voltage
Supply Voltage (V
+
- V
-
)
16V
Output Short Circuit to V
+
(Note 8)
Output Short Circuit to V
-
(Note 3)
Lead Temperature (soldering, 10 sec.)
260C
Current at Output Pin
18 mA
Current at Input Pin
5 mA
Current at Power Supply Pin
35 mA
Storage Temperature Range
-65C to +150C
Junction Temperature (Note 4)
150C
Operating Ratings
(Note 1)
Supply Voltage
2.0V to 15.5V
Temperature Range
LMC6035I and LMC6036I
-40C
T
J
+85C
Thermal Resistance (
JA
)
MSOP, 8-pin Mini Surface Mount
230C/W
M Package, 8-pin Surface Mount
175C/W
M Package, 14-pin Surface Mount
127C/W
MTC Package, 14-pin TSSOP
137C/W
BP, 8-Bump micro SMD Package
220C/W
DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 2.7V, V
-
= 0V, V
CM
= 1.0V, V
O
= 1.35V and R
L
>
1 M
.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
(Note 5)
LMC6035I
Units
LMC6036I
Limit (Note 6)
V
OS
Input Offset Voltage
0.5
5
mV
6
max
TCV
OS
Input Offset Voltage
2.3
V/C
Average Drift
I
IN
Input Current
(Note 11)
0.02
pA
90
max
I
OS
Input Offset Current
(Note 11)
0.01
pA
45
max
R
IN
Input Resistance
>
10
Tera
CMRR
Common Mode
0.7V
V
CM
12.7V
96
63
dB
Rejection Ratio
V
+
= 15V
60
min
+PSRR
Positive Power Supply
5V
V
+
15V,
93
63
dB
Rejection Ratio
V
O
= 2.5V
60
min
-PSRR
Negative Power Supply
0V
V
-
-10V
97
74
dB
Rejection Ratio
V
O
= 2.5V, V
+
= 5V
70
min
V
CM
Input Common-Mode
V
+
= 2.7V
-0.1
0.3
V
Voltage Range
For CMRR
40 dB
0.5
max
2.3
2.0
V
1.7
min
V
+
= 3V
-0.3
0.1
V
For CMRR
40 dB
0.3
max
2.6
2.3
V
2.0
min
V
+
= 5V
-0.5
-0.2
V
For CMRR
50 dB
0.0
max
4.5
4.2
V
3.9
min
V
+
= 15V
-0.5
-0.2
V
For CMRR
50 dB
0.0
max
14.4
14.0
V
13.7
min
LMC6035/LMC6036
www.national.com
3
DC Electrical Characteristics
(Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 2.7V, V
-
= 0V, V
CM
= 1.0V, V
O
= 1.35V and R
L
>
1 M
.
Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
(Note 5)
LMC6035I
Units
LMC6036I
Limit (Note 6)
A
V
Large Signal Voltage Gain
R
L
= 600
Sourcing
1000
100
V/mV
(Note 7)
75
min
Sinking
250
25
V/mV
20
min
R
L
=2 k
Sourcing
2000
V/mV
Sinking
500
V/mV
V
O
Output Swing
V
+
= 2.7V
2.5
2.0
V
R
L
= 600
to 1.35V
1.8
min
0.2
0.5
V
0.7
max
V
+
= 2.7V
2.62
2.4
V
R
L
= 2 k
to 1.35V
2.2
min
0.07
0.2
V
0.4
max
V
+
= 15V
14.5
13.5
V
R
L
= 600
to 7.5V
13.0
min
0.36
1.25
V
1.50
max
V
+
= 15V
14.8
14.2
V
R
L
= 2 k
to 7.5V
13.5
min
0.12
0.4
V
0.5
max
I
O
Output Current
V
O
= 0V
Sourcing
8
4
mA
3
min
V
O
= 2.7V
Sinking
5
3
mA
2
min
I
S
Supply Current
LMC6035 for Both Amplifiers
0.65
1.6
mA
V
O
= 1.35V
1.9
max
LMC6036 for All Four Amplifiers
1.3
2.7
mA
V
O
= 1.35V
3.0
max
LMC6035/LMC6036
www.national.com
4
AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 2.7V, V
-
= 0V, V
CM
= 1.0V, V
O
= 1.35V and R
L
>
1 M
. Boldface limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
Units
(Note 5)
SR
Slew Rate
(Note 9)
1.5
V/s
GBW
Gain Bandwidth Product
V
+
= 15V
1.4
MHz
m
Phase Margin
48
G
m
Gain Margin
17
dB
Amp-to-Amp Isolation
(Note 10)
130
dB
e
n
Input-Referred Voltage Noise
f = 1 kHz
27
V
CM
= 1V
i
n
Input Referred Current Noise
f = 1 kHz
0.2
THD
Total Harmonic Distortion
f = 10 kHz, A
V
= -10
R
L
= 2 k
, V
O
= 8 V
PP
0.01
%
V
+
= 10V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended 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, 1.5 k
in series with 100 pF.
Note 3: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the
maximum allowed junction temperature of 150C. Output currents in excess of 30 mA over long term may adversely affect reliabilty.
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 onto a PC board with no air flow.
Note 5: Typical Values represent the most likely parametric norm or one sigma value.
Note 6: All limits are guaranteed by testing or statistical analysis.
Note 7: V
+
= 15V, V
CM
= 7.5V and R
L
connected to 7.5V. For Sourcing tests, 7.5V
V
O
11.5V. For Sinking tests, 3.5V
V
O
7.5V.
Note 8: Do not short circuit output to V
+
when V
+
is greater than 13V or reliability will be adversely affected.
Note 9: V
+
= 15V. Connected as voltage follower with 10V step input. Number specified is the slower of the positive and negative slew rates.
Note 10: Input referred, V
+
= 15V and R
L
= 100 k
connected to 7.5V. Each amp excited in turn with 1 kHz to produce V
O
= 12 V
PP
.
Note 11: Guaranteed by design.
LMC6035/LMC6036
www.national.com
5
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