LMC6032
CMOS Dual Operational Amplifier
General Description
The LMC6032 is a CMOS dual operational amplifier which
can operate from either a single supply or dual supplies. Its
performance features include an input common-mode range
that reaches ground, low input bias current, and high voltage
gain into realistic loads, such as 2 k
and 600
.
This chip is built with National's advanced Double-Poly
Silicon-Gate CMOS process.
See the LMC6034 datasheet for a CMOS quad operational
amplifier with these same features. For higher performance
characteristics refer to the LMC662.
Features
n
Specified for 2 k
and 600
loads
n
High voltage gain:
126 dB
n
Low offset voltage drift:
2.3 V/C
n
Ultra low input bias current:
40 fA
n
Input common-mode range includes V
-
n
Operating range from +5V to +15V supply
n
I
SS
= 400 A/amplifier; independent of V
+
n
Low distortion:
0.01% at 10 kHz
n
Slew rate:
1.1 V/s
n
Improved performance over TLC272
Applications
n
High-impedance buffer or preamplifier
n
Current-to-voltage converter
n
Long-term integrator
n
Sample-and-hold circuit
n
Medical instrumentation
Connection Diagram
8-Pin DIP/SO
DS011135-1
Top View
10 Hz High-Pass Filter
DS011135-20
August 2000
LMC6032
CMOS
Dual
Operational
Amplifier
2000 National Semiconductor Corporation
DS011135
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.
Differential Input Voltage
Supply Voltage
Supply Voltage (V
+
- V
-
)
16V
Output Short Circuit to V
+
(Note 10)
Output Short Circuit to V
-
(Note 2)
Lead Temperature
(Soldering, 10 sec.)
260C
Storage Temperature Range
-65C to +150C
Junction Temperature
150C
ESD Tolerance (Note 4)
1000V
Power Dissipation
(Note 3)
Voltage at Output/Input Pin
(V
+
) + 0.3V,
(V
-
) - 0.3V
Current at Output Pin
18 mA
Current at Input Pin
5 mA
Current at Power Supply Pin
35 mA
Operating Ratings
(Note 1)
Temperature Range
-40C
T
J
+85C
Supply Voltage Range
4.75V to 15.5V
Power Dissipation
(Note 11)
Thermal Resistance (
JA
), (Note 12)
8-Pin DIP
101C/W
8-Pin SO
165C/W
DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C. Boldface limits apply at the temperature extremes. V
+
= 5V,
V
-
= GND = 0V, V
CM
= 1.5V, V
OUT
= 2.5V and R
L
>
1M unless otherwise specified.
Symbol
Parameter
Conditions
Typical
(Note 5)
LMC6032I
Units
Limit
(Note 6)
V
OS
Input Offset Voltage
1
9
mV
11
max
V
OS
/
T
Input Offset Voltage
2.3
V/C
Average Drift
I
B
Input Bias Current
0.04
pA
200
max
I
OS
Input Offset Current
0.01
pA
100
max
R
IN
Input Resistance
>
1
Tera
CMRR
Common Mode
0V
V
CM
12V
83
63
dB
Rejection Ratio
V
+
= 15V
60
min
+PSRR
Positive Power Supply
5V
V
+
15V
83
63
dB
Rejection Ratio
V
O
= 2.5V
60
min
-PSRR
Negative Power Supply
0V
V
-
-10V
94
74
dB
Rejection Ratio
70
min
V
CM
Input Common-Mode
V
+
= 5V & 15V
-0.4
-0.1
V
Voltage Range
For CMRR
50 dB
0
max
V
+
- 1.9
V
+
- 2.3
V
V
+
- 2.6
min
A
V
Large Signal
R
L
= 2 k
(Note 7)
2000
200
V/mV
Voltage Gain
Sourcing
100
min
Sinking
500
90
V/mV
40
min
R
L
= 600
(Note 7)
1000
100
V/mV
Sourcing
75
min
Sinking
250
50
V/mV
20
min
LMC6032
www.national.com
2
DC Electrical Characteristics
(Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25C. Boldface limits apply at the temperature extremes. V
+
= 5V,
V
-
= GND = 0V, V
CM
= 1.5V, V
OUT
= 2.5V and R
L
>
1M unless otherwise specified.
Symbol
Parameter
Conditions
Typical
(Note 5)
LMC6032I
Units
Limit
(Note 6)
V
O
Output Voltage Swing
V
+
= 5V
4.87
4.20
V
R
L
= 2 k
to 2.5V
4.00
min
0.10
0.25
V
0.35
max
V
+
= 5V
4.61
4.00
V
R
L
= 600
to 2.5V
3.80
min
0.30
0.63
V
0.75
max
V
+
= 15V
14.63
13.50
V
R
L
= 2 k
to 7.5V
13.00
min
0.26
0.45
V
0.55
max
V
+
= 15V
13.90
12.50
V
R
L
= 600
to 7.5V
12.00
min
0.79
1.45
V
1.75
max
I
O
Output Current
V
+
= 5V
22
13
mA
Sourcing, V
O
= 0V
9
min
Sinking, V
O
= 5V
21
13
mA
9
min
V
+
= 15V
40
23
mA
Sourcing, V
O
= 0V
15
min
Sinking, V
O
= 13V
39
23
mA
(Note 10)
15
min
I
S
Supply Current
Both Amplifiers
0.75
1.6
mA
V
O
= 1.5V
1.9
max
LMC6032
www.national.com
3
AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C. Boldface limits apply at the temperature extremes. V
+
= 5V,
V
-
= GND = 0V, V
CM
= 1.5V, V
OUT
= 2.5V and R
L
>
1M unless otherwise specified.
Symbol
Parameter
Conditions
Typical
(Note 5)
LMC6032I
Units
Limit
(Note 6)
SR
Slew Rate
(Note 8)
1.1
0.8
V/s
0.4
min
GBW
Gain-Bandwidth Product
1.4
MHz
M
Phase Margin
50
Deg
G
M
Gain Margin
17
dB
Amp-to-Amp Isolation
(Note 9)
130
dB
e
n
Input-Referred Voltage Noise
F = 1 kHz
22
i
n
Input-Referred Current Noise
F = 1 kHz
0.0002
THD
Total Harmonic Distortion
F = 10 kHz, A
V
= -10
R
L
= 2 k
, V
O
= 8 V
PP
0.01
%
5V Supply
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to component may occur. Operating Ratings indicate conditions for which the device is in-
tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed.
Note 2: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature and/or multiple Op Amp shorts
can result in exceeding the maximum allowed junction temperature of 150C. Output currents in excess of
30 mA over long term may adversely affect reliability.
Note 3: 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
.
Note 4: Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 5: Typical values represent the most likely parametric norm.
Note 6: All limits are guaranteed at room temperature (standard type face) or at operating temperature extremes (bold type face).
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, 2.5V
V
O
7.5V.
Note 8: V
+
= 15V. Connected as Voltage Follower with 10V step input. Number specified is the slower of the positive and negative slew rates.
Note 9: Input referred. V
+
= 15V and R
L
= 10 k
connected to V
+
/2. Each amp excited in turn with 1 kHz to produce V
O
= 13 V
PP
.
Note 10: Do not connect output to V
+
, when V
+
is greater than 13V or reliability may be adversely affected.
Note 11: For operating at elevated temperatures the device must be derated based on the thermal resistance
JA
with P
D
= (T
J
- T
A
)/
JA
.
Note 12: All numbers apply for packages soldered directly into a PC board.
LMC6032
www.national.com
4
Typical Performance Characteristics
V
S
=
7.5V, T
A
= 25C unless otherwise specified
Supply Current
vs Supply Voltage
DS011135-23
Input Bias Current
DS011135-24
Output Characteristics
Current Sinking
DS011135-25
Output Characteristics
Current Sourcing
DS011135-26
Input Voltage Noise
vs Frequency
DS011135-27
CMRR vs Frequency
DS011135-28
Open-Loop Frequency
Response
DS011135-29
Frequency Response
vs Capacitive Load
DS011135-30
Non-Inverting Large Signal
Pulse Response
DS011135-31
LMC6032
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