LM139JAN Datasheet, PDF (1/20 Pages) National Semiconductor (TI) – Low Power Low Offset Voltage Quad Comparators

February 2005
LM139JAN
Low Power Low Offset Voltage Quad Comparators
General Description
The LM139 consists of four independent precision voltage
comparators with an offset voltage specification as low as 2
mV max for all four comparators. These 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.
These comparators also have a unique characteristic in that
the input common-mode voltage range includes ground,
even though operated from a single power supply voltage.
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay gen-
erators; wide range VCO; MOS clock timers; multivibrators
and high voltage digital logic gates. The LM139 was de-
signed to directly interface with TTL and CMOS. When op-
erated from both plus and minus power supplies, they will
directly interface with MOS logic — where the low power
drain of the LM139 is a distinct advantage over standard
comparators.
Features
n Wide supply voltage range
±18 V_DC
5V to 36 V_DC or ±2.5V to
n Very low supply current drain (0.8 mA) — independent
of supply voltage
n Low input biasing current:
n Low input offset current:
n Offset voltage:
25 nA
±5 nA
±3 mV
n Input common-mode voltage range includes GND
n Differential input voltage range equal to the power
supply voltage
n Low output saturation voltage:
250 mV at 4 mA
n Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
Advantages
n High precision comparators
n Reduced V_OS drift over temperature
n Eliminates need for dual supplies
n Allows sensing near GND
n Compatible with all forms of logic
n Power drain suitable for battery operation
Ordering Information
NS Part Number
JL139BCA
JL139SCA
JL139BZA
JL139SZA
JL139BDA
JL139SDA
JAN Part Number
JM38510/11201BCA
JM38510/11201SCA
JM38510/11201BZA
JM38510/11201SZA
JM38510/11201BDA
JM38510/11201SDA
NS Package Number
J14A
J14A
WG14A
WG14A
W14B
W14B
Package Description
14LD CERDIP
14LD CERDIP
14LD Ceramic SOIC
14LD Ceramic SOIC
14LD CERPACK
14LD CERPACK
© 2005 National Semiconductor Corporation DS201295
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