參數(shù)資料
型號: LM139
廠商: NXP SEMICONDUCTORS
元件分類: 比較器
英文描述: Quad voltage comparator(四電壓比較器)
中文描述: COMPARATOR
文件頁數(shù): 7/10頁
文件大小: 75K
代理商: LM139
Philips Semiconductors
Product specification
LM139/239/239A/339/339A/
LM2901/MC3302
Quad voltage comparator
1995 Nov 27
7
EQUIVALENT CIRCUIT
100k
500pF
10
0.1
μ
F
20k
50k
20k
V
+
/2
V
+
30k
5.1k
700k
V
/2
+
+ VC
FREQUENCY
CONTROL
VOLTAGE
INPUT
3.0k
OUTPUT 1
OUTPUT 2
+
+
+
V
REF
HI
+
V
IN
2R
S
R
S
2R
S
+
V (12V
DC
)
10K
LAMP
2N2222
+
+
+
+
5V
DC
360
100
100k
+
+
5V
DC
360
100
100k
+
+
5V
DC
360
100
100k
+
+
5V
DC
360
100
100k
+
V
REF 4
+
V
REF 3
+
V
REF 2
+
V
REF 1
V
O
+
V
+
2.0k
V
+
o
V
O
1 – 100kHz
CRYSTAL
200k
200k
100k
0.1
μ
F
Crystal–Controlled Oscillator
Limit Comparator
Two–Decade High–Frequency VCO
Visible Voltage Indicator
+
TTL–to–MOS Logic Converter
NOTES:
V+ = 30V
DC
+ 250m V
DC
< V
C
= 50V
DC
700H < f
O
= 100kHz
NOTE:
Input of unused comparators should be grounded.
1/4LM339
1/4LM339
1/4LM339
+
V
REF
LO
5V
DC
–12V
DC
0.01
μ
F
V
+
+
V
(1.4V
DC
)
10K
1/4LM339
V
O
–12V
o
SL00072
Figure 3. Equivalent Circuit
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