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LM339AM 参数 Datasheet PDF下载

LM339AM图片预览
型号: LM339AM
PDF下载: 下载PDF文件 查看货源
内容描述: 低功耗低失调电压QUAD比较仪 [Low Power Low Offset Voltage Quad Comparators]
分类和应用: 比较器放大器放大器电路光电二极管
文件页数/大小: 20 页 / 381 K
品牌: NSC [ NATIONAL SEMICONDUCTOR ]
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LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset Voltage Quad Comparators
November 1999
LM139/LM239/LM339/LM2901/LM3302
Low Power Low Offset Voltage Quad Comparators
General Description
The LM139 series consists of four independent precision
voltage comparators with an offset voltage specification as
low as 2 mV max for all four comparators. These were de-
signed 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 characteris-
tic 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 series was
designed to directly interface with TTL and CMOS. When op-
erated from both plus and minus power supplies, they will di-
rectly interface with MOS logic — where the low power drain
of the LM339 is a distinct advantage over standard compara-
tors.
n
n
n
n
n
Reduced V
OS
drift over temperature
Eliminates need for dual supplies
Allows sensing near GND
Compatible with all forms of logic
Power drain suitable for battery operation
Features
n
Wide supply voltage range
— LM139/139A Series 2 to 36 V
DC
or
±
1 to
±
18 V
DC
— LM2901:
2 to 36 V
DC
or
±
1 to
±
18 V
DC
— LM3302:
2 to 28 V
DC
or
±
1 to
±
14 V
DC
n
Very low supply current drain (0.8 mA) — independent
of supply voltage
n
Low input biasing current:
25 nA
±
5 nA
n
Low input offset current:
±
3 mV
n
Offset voltage:
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
Connection Diagrams
DS005706-27
Order Number LM139AW/883 or LM139W/883
(Note 1)
LM139AWRQML and LM139AWRQMLV(Note
3)
See NS Package Number W14B
LM139AWGRQML and LM139AWGRQMLV(Note
3)
See NS Package Number WG14A
© 1999 National Semiconductor Corporation
DS005706
www.national.com