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參數(shù)資料
| 型號(hào)： | MAX9687CJE |
| 廠(chǎng)商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Dual, Ultra-Fast ECL-Output Comparator |
| 中文描述： | DUAL COMPARATOR, 7000 uV OFFSET-MAX, CDIP16 |
| 封裝： | CERDIP-16 |
| 文件頁(yè)數(shù)： | 3/4頁(yè) |
| 文件大小： | 44K |
| 代理商： | MAX9687CJE |
M
Dual, Ultra-Fast ECL-Output Comparator
_______________________________________________________________________________________
3
Note 2:
Note 3:
Not tested, guaranteed by design.
VIN= 100mV, VOD= 10mV.
Figure 2. As a high-speed receiver, the MAX9687 is capable of
processing signals in excess of 600MHz. Figure 2 is a 100MHz
example with an input signal level of 14mV
RMS.
Figure 1. High-speed receiver application with 50
input and out-
put termination. With this configuration, in which a ground plane and
microstrip PC board was used, the minimum slew rate for clean out-
put switching is 1.6V/μs. For sine-wave inputs, this implies a mini-
mum signal size of 360mV
RMS
at 500MHz and 90mV at 2MHz.
ERMS=2
π
__________Applic ations Information
0V
-0.9V
-1.7V
OUTPUT
INPUT
OUTPUT
500mV/div
INPUT
20mV/div
2ns/div
V
IN
-2V
50
C
f
R
f
50
50
50
LE
SWITCHING CHARACTERISTICS
(V
S
= ±5V, T
A
= +25°C, unless otherwise noted.)
1.4
1.6
1.9
2.2
PARAMETER
SYMBOL
MAX9687C/E
MIN
TYP
MAX
UNITS
T
A
= +25°C
T
A
= 0°C to +70°C
T
A
= -55°C to +125°C
CONDITIONS
1.4
1.9
MAX9687M
MIN
TYP
MAX
1.4
1.9
1.7
2.6
T
A
= +25°C
T
A
= 0°C to +70°C
1.4
1.6
1.9
2.2
Input to Output High
(Notes 2, 3)
t
pd+
ns
1.9
1.3
2.6
1.8
Input to Output Low
(Notes 2, 3)
T
A
= 0°C to +70°C
T
A
= -55°C to +125°C
t
pd-
1.4
2.0
1.3
1.8
T
A
= -55°C to +125°C
T
A
= +25°C
ns
1.3
1.8
1.5
2.0
1.7
2.0
0.5
0.5
2.6
Latch-Enable to Output Low
(Notes 2, 3)
t
pd-
(E)
T
A
= -55°C to +125°C
ns
1.6
1.9
T
A
= +25°C
T
A
= 0°C to +70°C
1.4
1.8
Latch-Enable to Output High
(Notes 2, 3)
t
pd+
(E)
ns
3.0
Latch-Enable Pulse Width (Note 2)
Minimum Setup Time
Minimum Hold Time
1.0
1.0
t
pw
(E)
t
s
t
h
0.5
0.5
1.0
1.0
3.0
2.0
ns
Layout
Because of the MAX9687’s large gain-bandwidth charac-
teristic, special precautions need to be taken if its high-
speed capabilities are to be used. A PC board with a
ground plane is mandatory. Mount all decoupling capaci-
tors as close to the power-supply pins as possible, and
process the ECL outputs in microstrip fashion, consistent
with the load termination of 50
to 120
. For low-imped-
ance applications, microstrip layout at the input may also
be helpful. Pay close attention to the bandwidth of the
decoupling and terminating components. Chip compo-
nents can be used to minimize lead inductance.
Input Slew-Rate Requirement
As with all high-speed comparators, the high gain-
bandwidth product of these devices creates oscillation
problems when the input traverses through the linear
region. For clean switching without oscillation or steps
in the output waveform, the input must meet certain
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