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LMC6042 Datasheet

CMOS Dual Micropower Operational Amplifier

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August 1999
LMC6042
CMOS Dual Micropower Operational Amplifier
General Description
Ultra-low power consumption and low input-leakage current
are the hallmarks of the LMC6042. Providing input currents
of only 2 fA typical, the LMC6042 can operate from a single
supply, has output swing extending to each supply rail, and
an input voltage range that includes ground.
The LMC6042 is ideal for use in systems requiring ultra-low
power consumption. In addition, the insensitivity to latch-up,
high output drive, and output swing to ground without requir-
ing external pull-down resistors make it ideal for
single-supply battery-powered systems.
Other applications for the LMC6042 include bar code reader
amplifiers, magnetic and electric field detectors, and
hand-held electrometers.
This device is built with National’s advanced Double-Poly
Silicon-Gate CMOS process.
See the LMC6041 for a single, and the LMC6044 for a quad
amplifier with these features.
Features
n Low supply current: 10 µA/Amp (typ)
n Operates from 4.5V to 15V single supply
n Ultra low input current: 2 fA (typ)
n Rail-to-rail output swing
n Input common-mode range includes ground
Applications
n Battery monitoring and power conditioning
n Photodiode and infrared detector preamplifier
n Silicon based transducer systems
n Hand-held analytic instruments
n pH probe buffer amplifier
n Fire and smoke detection systems
n Charge amplifier for piezoelectric transducers
Connection Diagram
8-Pin DIP/SO
Ordering Information
Package
8-Pin
Small Outline
8-Pin
Molded DIP
Temperature
Range
Industrial
−40˚C to +85˚C
LMC6042AIM
LMC6042IM
LMC6042AIN
LMC6042IN
NSC
Drawing
M08A
N08E
DS011137-1
Transport
Media
Rail
Tape and Reel
Rail
© 1999 National Semiconductor Corporation DS011137
www.national.com


National Semiconductor Electronic Components Datasheet

LMC6042 Datasheet

CMOS Dual Micropower Operational Amplifier

No Preview Available !

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 (V+ − V)
Output Short Circuit to V+
Output Short Circuit to V
Lead Temperature
(Soldering, 10 seconds)
Current at Input Pin
Current at Output Pin
Current at Power Supply Pin
Power Dissipation
±Supply Voltage
16V
(Note 12)
(Note 2)
260˚C
±5 mA
±18 mA
35 mA
(Note 3)
Storage Temperature Range
Junction Temperature (Note 3)
ESD Tolerance (Note 4)
Voltage at Input/Output Pin
−65˚C to +150˚C
110˚C
500V
(V+) + 0.3V, (V) − 0.3V
Operating Ratings
Temperature Range
LMC6042AI, LMC6042I
Supply Voltage
Power Dissipation
Thermal Resistance (θJA), (Note 11)
8-Pin DIP
8-Pin SO
−40˚C TJ +85˚C
4.5V V+ 15.5V
(Note 10)
101˚C/W
165˚C/W
Electrical Characteristics
Unless
5V, V
otherwise spec ified, all limits
= 0V, VCM = 1.5V, VO = V+/2
gaunadraRnLte>ed1MforuTnAles=sToJth=er2w5i˚sCe.
Boldface
specified.
limits
apply
at
the
temperature
extremes.
V+
=
Typical LMC6042AI LMC6042I
Units
Symbol
Parameter
Conditions
(Note 5)
Limit
Limit
(Limit)
(Note 6) (Note 6)
VOS Input Offset Voltage
1 3 6 mV
3.3 6.3 Max
TCVOS
Input Offset Voltage
Average Drift
1.3 µV/˚C
IB
IOS
RIN
CMRR
Input Bias Current
Input Offset Current
Input Resistance
Common Mode
Rejection Ratio
0V VCM 12.0V
V+ = 15V
0.002
0.001
>10
75
4
2
68
66
4 pA (Max)
2 pA (Max)
Tera
62 dB
60 Min
+PSRR Positive Power Supply 5V V+ 15V
75 68 62 dB
Rejection Ratio
−PSRR Negative Power Supply
VO = 2.5V
0V V−10V
66 60 Min
94 84 74 dB
CMR
Rejection Ratio
Input Common-Mode
VO = 2.5V
V+ = 5V and 15V
83 73 Min
−0.4
−0.1
−0.1
V
Voltage Range
For CMRR 50 dB
0 0 Max
V+−1.9V V+− 2.3V V+− 2.3V
V
V+− 2.5V V+− 2.4V
Min
AV Large Signal
Voltage Gain
RL = 100 k(Note 7) Sourcing
1000
400
300
300 V/mV
200 Min
Sinking
500
180
90 V/mV
120 70 Min
RL = 25 k(Note 7)
Sourcing
1000
200
160
100 V/mV
80 Min
Sinking
250
100
50 V/mV
60 40 Min
www.national.com
2


Part Number LMC6042
Description CMOS Dual Micropower Operational Amplifier
Maker National Semiconductor
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LMC6042 Datasheet PDF






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