LMC6035/LMC6036
Low Power 2.7V Single Supply CMOS Operational
Amplifiers
LMC6035/LMC6036 Low Power 2.7V Single Supply CMOS Operational Amplifiers
January 2000
General Description
The LMC6035/6 is an economical, low voltage op amp capable of rail-to-rail output swing into loads of 600Ω.
LMC6035 is available in a chip sized package (8-Bump micro SMD) using National’s micro SMD package technology.
Both allow for single supply operation and are guaranteed
for 2.7V, 3V, 5V and15Vsupply voltage. The 2.7 supply voltage 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 systems. It also features a well behaved decrease in its specifications at supply voltages below its guaranteed 2.7V operation. This provides a “comfort zone” for adequate operation
at voltages significantly below 2.7V. Its ultra low input currents (I
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 applications for low voltage systems.
) makes it well suited for low power active filter ap-
IN
Connection Diagrams
8-Pin SO/MSOP
Features
(Typical Unless Otherwise Noted)
n LMC6035 in micro SMD Package
n Guaranteed 2.7V, 3V, 5V and 15V Performance
n Specified for 2 kΩ and 600Ω Loads
n Wide Operating Range:2.0V to 15.5V
n Ultra Low Input Current: 20 fA
n Rail-to-Rail Output Swing
@
600Ω: 200 mV from either rail at 2.7V
@
100 kΩ: 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
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 Model3000V
Machine Model300V
±
Differential Input Voltage
Supply Voltage (V
+−V−
Output Short Circuit to V
Output Short Circuit to V
)16V
+
−
Supply Voltage
(Note 8)
(Note 3)
Lead Temperature (soldering, 10 sec.)260˚C
±
Current at Output Pin
Current at Input Pin
18 mA
±
5mA
Current at Power Supply Pin35 mA
DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
Boldface limits apply at the temperature extremes.
SymbolParameterConditions
V
OS
TCV
OS
Input Offset Voltage0.55mV
Input Offset Voltage2.3µV/˚C
Average Drift
I
IN
I
OS
R
IN
Input Current(Note 11)0.02pA
Input Offset Current(Note 11)0.01pA
Input Resistance
CMRRCommon Mode0.7V ≤ V
+
Rejection RatioV
=
+PSRRPositive Power Supply5V ≤ V
Rejection RatioV
O
−PSRRNegative Power Supply0V ≤ V
Rejection RatioV
V
CM
Input Common-ModeV
O
+
=
Voltage RangeFor CMRR ≥ 40 dB0.5max
+
=
V
For CMRR ≥ 40 dB0.3max
+
=
V
For CMRR ≥ 50 dB0.0max
+
=
V
For CMRR ≥ 50 dB0.0max
=
25˚C, V
J
≤ 12.7V9663dB
CM
15V60min
+
≤ 15V,9363dB
=
2.5V60min
−
≤ −10V9774dB
2.5V, V
+
=
5V70min
=
2.7V−0.10.3V
3V−0.30.1V
5V−0.5−0.2V
15V−0.5−0.2V
Storage Temperature Range−65˚C to +150˚C
Junction Temperature (Note 4)150˚C
Operating Ratings (Note 1)
Supply Voltage2.0V to 15.5V
Temperature Range
L
≤ +85˚C
J
>
1MΩ.
UnitsLMC6036I
LMC6035I and LMC6036I−40˚C ≤ T
Thermal Resistance (θ
)
JA
MSOP, 8-pin Mini Surface Mount230˚C/W
M Package, 8-pin Surface Mount175˚C/W
M Package, 14-pin Surface Mount127˚C/W
MTC Package, 14-pin TSSOP137˚C/W
BP, 8-Bump micro SMD Package220˚C/W
+
=
2.7V, V
−
=
0V, V
CM
=
1.0V, V
=
1.35V and R
O
LMC6035I
Typ
(Note 5)
Limit (Note 6)
6max
90max
45max
>
10Tera Ω
2.32.0V
1.7min
2.62.3V
2.0min
4.54.2V
3.9min
14.414.0V
13.7min
www.national.com3
DC Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for T
Boldface limits apply at the temperature extremes.
SymbolParameterConditions
LMC6035/LMC6036
A
V
Large Signal Voltage GainR
L
(Note 7)75min
=
R
L
V
O
I
O
I
S
Output SwingV
Output CurrentV
Supply CurrentLMC6035 for Both Amplifiers0.651.6mA
+
R
L
+
V
R
L
+
V
R
L
+
V
R
L
O
V
O
V
O
LMC6036 for All Four Amplifiers1.32.7mA
V
O
=
J
=
600ΩSourcing1000100V/mV
2kΩSourcing2000V/mV
=
2.7V2.52.0V
=
600Ω to 1.35V1.8min
=
2.7V2.622.4V
=
2kΩto 1.35V2.2min
=
15V14.513.5V
=
600Ω to 7.5V13.0min
=
15V14.814.2V
=
2kΩto 7.5V13.5min
=
0VSourcing84mA
=
2.7VSinking53mA
=
1.35V1.9max
=
1.35V3.0max
25˚C, V
+
=
2.7V, V
−
=
0V, V
CM
=
1.0V, V
=
1.35V and R
O
L
>
1MΩ.
LMC6035I
Typ
(Note 5)
UnitsLMC6036I
Limit (Note 6)
Sinking25025V/mV
20min
Sinking500V/mV
0.20.5V
0.7max
0.070.2V
0.4max
0.361.25V
1.50max
0.120.4V
0.5max
3min
2min
www.national.com4
LMC6035/LMC6036
AC Electrical Characteristics
25˚C, V
+
=
Unless otherwise specified, all limits guaranteed for T
1MΩ.Boldface limits apply at the temperature extremes.
=
J
SymbolParameterConditionsTypUnits
SRSlew Rate(Note 9)1.5V/µs
+
GBWGain Bandwidth ProductV
θ
m
G
m
Phase Margin48˚
Gain Margin17dB
=
15V1.4MHz
Amp-to-Amp Isolation(Note 10)130dB
e
n
i
n
Input-Referred Voltage Noisef=1 kHz27
=
V
CM
1V
Input Referred Current Noisef=1 kHz0.2
THDTotal Harmonic Distortionf=10 kHz, A
=
R
2kΩ,V
L
+
=
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 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, 1.5 kΩ 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 150˚C. Output currents in excess of 30 mA over long term may adversely affect reliabilty.
Note 4: Themaximum power dissipation is a function of T
−TA)/θJA. 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
Note 8: Do not short circuit output to V
Note 9: V
Note 10: Input referred, V
Note 11: Guaranteed by design.
+
=
15V, V
+
=
15V. Connected as voltage follower with 10V step input. Number specified is the slower of the positive and negative slew rates.
CM
=
7.5V and R
+
=
15V and R
connected to 7.5V. For Sourcing tests, 7.5V ≤ VO≤ 11.5V. For Sinking tests, 3.5V ≤ VO≤ 7.5V.
L
+
when V+is greater than 13V or reliability will be adversely affected.
=
100 kΩ connected to 7.5V. Each amp excited in turn with 1 kHz to produce V
L
, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is P
J(max)
2.7V, V
V
O
−
=
0V, V
CM
=
1.0V, V
=
1.35V and R
O
>
L
(Note 5)
=
−10
=
8V
PP
0.01
=
.
12 V
O
PP
%
=
(T
D
J(max)
www.national.com5
Typical Performance Characteristics Unless otherwise specified, V
=
2.7V, single supply, T
S
=
25˚C
A
Supply Current vs
Supply Voltage (Per Amplifier)
LMC6035/LMC6036
Sourcing Current vs
Output Voltage
DS012830-52
Input Current vs
Temperature
Sinking Current vs
Output Voltage
DS012830-53
Sourcing Current vs
Output Voltage
DS012830-54
Sinking Current vs
Output Voltage
Output Voltage Swing vs
Supply Voltage
DS012830-55
DS012830-58
Input Noise vs
Frequency
DS012830-56
DS012830-59
DS012830-57
Input Noise vs
Frequency
DS012830-60
www.national.com6
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