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參數(shù)資料
| 型號： | EL5481C |
| 英文描述： | Quad 8ns High-Speed Comparators |
| 中文描述： | 四為8ns高速比較器 |
| 文件頁數(shù)： | 2/11頁 |
| 文件大小： | 112K |
| 代理商： | EL5481C |
10
EL5481C/EL5482C
Quad 8ns High-Speed Comparators
E
L
5
4
8
1
C
/E
L
5
4
8
2
C
where:
TMAX is the maximum ambient temperature
θJA is the thermal resistance of the package
Threshold Detector
The inverting input is connected to a reference voltage
and the non-inverting input is connected to the input. As
the input passes the VREF threshold, the comparator's
output changes state. The non-inverting and inverting
inputs may be reversed.
Crystal Oscillator
A simple crystal oscillator using one comparator of an
EL5481C and EL5482C is shown below. The resistors
R1 and R2 set the bias point at the comparator's non-
inverting input. Resistors R3, R4, and C1 set the invert-
ing input node at an appropriate DC average voltage
based on the output. The crystal's path provides resonant
positive feedback and stable oscillation occurs.
Although the EL5481C and EL5482C will give the cor-
rect logic output when an input is outside the common
mode range, additional delays may occur when it is so
operated. Therefore, the DC bias voltages at the inputs
are set about 500mV below the center of the common
mode range and the 200
resistor attenuates the feed-
back to the non-inverting input. The circuit will operate
with most AT-cut crystal from 1MHz to 8MHz over a
2V to 7V supply range. The output duty cycle for this
circuit is roughly 50% at 5V VCC, but it is affected by
the tolerances of the resistors. The duty cycle can be
adjusted by changing VCC value.
+
-
VIN
VREF
VOUT
+
-
200
VOUT
R4
R3
5V
1MHz to
8MHz
2k
C1
0.01F
5k
1.5k
2k
R1
R2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EL5481CS | Quad 8ns High-Speed Comparators |
| EL5481CS-T13 | Quad 8ns High-Speed Comparators |
| EL5481CS-T7 | Quad 8ns High-Speed Comparators |
| EL5482CU-T13 | Quad 8ns High-Speed Comparators |
| EL5482CU | Quad 8ns High-Speed Comparators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EL5481CS | 制造商:Rochester Electronics LLC 功能描述:QUAD 8 NS COMPARATOR - Bulk 制造商:Intersil Corporation 功能描述: |
| EL5481CS-T13 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad 8ns High-Speed Comparators |
| EL5481CS-T7 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Quad 8ns High-Speed Comparators |
| EL5482B WAF | 制造商:Intersil Corporation 功能描述: |
| EL5482CU | 制造商:Intersil Corporation 功能描述:COMPARATOR QUAD R-R O/P 6.3V/7V/12V 24QSOP - Bulk 制造商:Rochester Electronics LLC 功能描述:EL5482CU QUAD 8NS HIGH-SPEED COMPARATOR - Bulk |
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