欢迎访问ic37.com |
会员登录 免费注册
发布采购

LM339 参数 Datasheet PDF下载

LM339图片预览
型号: LM339
PDF下载: 下载PDF文件 查看货源
内容描述: LM339四电压比较低输入偏置电流 - 25nA (典型值) [LM339 Quad Voltage Comparator Low Input Bias Current - 25nA(Typ)]
分类和应用:
文件页数/大小: 5 页 / 100 K
品牌: FCI [ FIRST COMPONENTS INTERNATIONAL ]
 浏览型号LM339的Datasheet PDF文件第2页浏览型号LM339的Datasheet PDF文件第3页浏览型号LM339的Datasheet PDF文件第4页浏览型号LM339的Datasheet PDF文件第5页  
LM339 Quad Voltage Comparator
QUAD VOLTAGE COMPARATORS
These comparators are designed for use in level detection, low–level sensing and memory
applications in consumer automotive and industrial electronic applications.
FEATURES
l
l
l
l
l
l
l
PIN ARRANGEMENT
14 DIP
LM339CD
Single or dual supplies
Low Input Bias Current - 25nA(Typ)
Low Input Offset Voltage - +1.0mV(Typ)
Low Input Offset Current - +5.0nA(Typ)
Input common-mode voltage range to GND
Output Compatible with TTL, MOS,
14 SOP
LM339CS
and CMOS
Low output saturation voltage - 130mV(Typ)
@ 4.0mA
ABSOLUTE MAXIMUM RATINGS
Item
Power Supply Voltage
Input Differential Voltage Range
Input Common Mode Voltage Range
Output Short Circuit-to-Ground
Power Dissipation @ 25
o
C
Derate above 25
o
C
Operating Ambient Temperature Range
Storage Temperature Range
Symbol
V
CC
V
IDR
V
ICR
I
SC
P
D
T
A
T
S
Rating
+36 or +18
36
-0.3 to +36
Continuous
1.0
8.0
0 to 70
-65 to 150
Unit
V
V
V
mA
W
mW/
o
C
o
o
C
C
Notes: 1. The max. output current may be as high as 20 mA, independent of the magnitude of V
CC
, output short circuits to
V
CC
can cause excessive heating and eventual destruction.
2. This magnitude of input current will only occur if the leads are driven more negative than ground or the negative
supply voltage. This is due to the input PNP collector base junction becooming forward biased, acting as an input
clamp diode. There is also a lateral PNP parasitic transistor action which can cause the output voltage of the
comparators to go to the V
CC
voltage level (or ground if overdrive is large) during the time that an input is driven
negative. This will not destroy the device when limited to the max rating and normal output states will recover
when inputs become > ground or negative supply.
3. At output switch point, V
O
=
1.4 Vdc, R
S
= 100
with V
CC
from 5.0 Vdc to 30 Vdc, and over the full input
common mode range (0V to V
CC
= –1.5V).
4. Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant,
independent of the output state, therefore, no loading changes will exist on the input lines.
5. Response time is specified with a 100mV step and 5.0mV of overdrive. For larger signals, 300ns is typical.
6. Positive excursions of input voltage may exceed the power supply level. As long as one of the inputs remain within
the common-mode range, the comparator will provide the proper output state.
5-3