OBSOLETE
September 27, 2010
LM124A/LM124JAN
Low Power Quad Operational Amplifiers
General Description
Advantages
The LM124/124A consists of four independent, high gain, in-
ternally frequency compensated operational amplifiers which
were designed specifically to operate from a single power
supply over a wide range of voltages. Operation from split
power supplies is also possible and the low power supply
current drain is independent of the magnitude of the power
supply voltage.
Eliminates need for dual supplies
■
■
■
Four internally compensated op amps in a single package
Allows directly sensing near GND and VOUT also goes to
GND
Compatible with all forms of logic
■
■
Power drain suitable for battery operation
Application areas include transducer amplifiers, DC gain
blocks and all the conventional op amp circuits which now can
be more easily implemented in single power supply systems.
For example, the LM124/124A can be directly operated off of
the standard +5Vdc power supply voltage which is used in
digital systems and will easily provide the required interface
electronics without requiring the additional +15Vdc power
supplies.
Features
Internally frequency compensated for unity gain
■
■
■
Large DC voltage gain 100 dB
Wide bandwidth (unity gain) 1 MHz
(temperature compensated)
Wide power supply range:
Single supply 3V to 32V
■
or dual supplies ±1.5V to ±16V
Very low supply current drain (700 μA)—essentially
independent of supply voltage
Low input biasing current 45 nA
(temperature compensated)
Low input offset voltage 2 mV
and offset current: 5 nA
Unique Characteristics
■
■
■
In the linear mode the input common-mode voltage range
■
includes ground and the output voltage can also swing to
ground, even though operated from only a single power
supply voltage
The unity gain cross frequency is temperature
compensated
■
Input common-mode voltage range includes ground
■
■
The input bias current is also temperature compensated
■
Differential input voltage range equal to the power supply
voltage
Large output voltage swing 0V to V+ − 1.5V
■
Ordering Information
NSC Part Number
JAN Part Number
NSC Package
Number
Package Description
JL124BCA
JL124BDA
JL124BZA
JM38510/11005BCA
JM38510/11005BDA
JM38510/11005BZA
JM38510/11005SCA
JM38510/11005SDA
JM38510/11006BCA
JM38510/11006BDA
JM38510/11006BZA
JM38510/11006SCA
JM38510/11006SDA
JM38510/11006SZA
J14A
W14B
WG14A
J14A
14LD CERDIP
14LD CERPACK
14LD Ceramic SOIC
14LD CERDIP
JL124SCA
JL124SDA
JL124ABCA
JL124ABDA
JL124ABZA
JL124ASCA
JL124ASDA
JL124ASZA
W14B
J14A
14LD CERPACK
14LD CERDIP
W14B
WG14A
J14A
14LD CERPACK
14LD Ceramic SOIC
14LD CERDIP
W14B
WG14A
14LD CERPACK
14LD Ceramic SOIC
© 2010 National Semiconductor Corporation
201007
www.national.com
201007 Version 6 Revision 7 Print Date/Time: 2010/09/30 23:57:40