MAX9687 Maxim, MAX9687 Datasheet
MAX9687
Manufacturer Part Number
MAX9687
Description
Dual / Ultra-Fast ECL-Output Comparator
Manufacturer
Maxim
Datasheet
1.MAX9687.pdf
(4 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX9687CSE
Manufacturer:
MAXIM/美信
Quantity:
20 000
The MAX9687 is a dual, ultra-fast ECL comparator
manufactured with a high-frequency bipolar process
(f
This design maintains the excellent DC matching char-
acteristics normally found only in slower comparators.
The MAX9687 is pin-compatible with the AD9687 and
Am6687, but exceeds their AC characteristics.
The MAX9687 has differential inputs and complemen-
tary outputs that are fully compatible with ECL-logic lev-
els. Output current levels are capable of driving 50Ω
terminated transmission lines. The ultra-fast operation
makes signal processing possible at frequencies in
excess of 600MHz.
A latch-enable (LE) function is provided to allow the
comparator to be used in a sample/hold or track/hold
mode. The latch-enable inputs are designed to be dri-
ven from the complementary outputs of a standard ECL
gate. When LE is high and
functions normally. When LE is forced low and
high, the comparator outputs are locked in the logical
states determined by the input conditions at the time of
the latch transition. If the latch-enable function is not
used on either of the two comparators, the appropriate
LE input must be connected to ground; the companion
–
L
—
________________________Applications
19-2400; Rev 1; 7/93
________________Functional Diagram
Call toll free 1-800-998-8800 for free samples or literature.
E
_______________General Description
T
NONINVERTING
–
THE OUTPUTS ARE OPEN EMITTERS, REQUIRING EXTERNAL PULL-DOWN
RESISTORS. THESE RESISTORS MAY BE IN THE RANGE OF 50
CONNECTED TO -2.0V, OR 240
INVERTING
= 6GHz) capable of very short propagation delays.
input can be left open.
INPUT
INPUT
High-Speed A/D Converters
High-Speed Line Receivers
Peak Detectors
Threshold Detectors
High-Speed Triggers
LATCH ENABLE
LE
LE
R L
________________________________________________________________ Maxim Integrated Products
Dual, Ultra-Fast ECL-Output Comparator
R L
Q OUT
– 2000
Q OUT
V
T
R L
–
—
L
E
–
CONNECTED TO -5.2V.
is low, the comparator
R L
LATCH ENABLE
LE
LE
NONINVERTING
– 200
INVERTING
INPUT
INPUT
–
L
—
E
–
is
____________________________Features
* Contact factory for availability of 20-pin PLCC.
** Contact factory for dice specifications.
___________________Pin Configuration
MAX9687CPE
MAX9687CSE
MAX9687CJE
MAX9687C/D
MAX9687EPE
MAX9687ESE
MAX9687MJE
______________Ordering Information
1.4ns Propagation Delay
0.5ns Latch Setup Time
2.0ns Latch-Enable Pulse Width
+5V, -5.2V Power Supplies
Pin-Compatible with AD9687, Am6687, SP9687
Available in Commercial, Extended-Industrial,
and Military Temperature Ranges
Available in Narrow SO Package
TOP VIEW
PART
Q OUT
Q OUT
INA+
GND
INA-
LEA
LEA
V-
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
1
2
3
4
5
6
7
8
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
DIP/SO
A
B
16
15
14
13
12
11
10
9
16 Plastic DIP
16 Narrow SO
16 CERDIP
Dice**
16 Plastic DIP
16 Narrow SO
16 CERDIP
Q OUT
Q OUT
GND
LEB
LEB
V+
INB-
INB+
PIN-PACKAGE*
1
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