Rainbow Electronics MAX9693 User Manual
General Description
The MAX9691/MAX9692/MAX9693 are ultra-fast ECL
comparators capable of very short propagation delays.
Their design maintains the excellent DC matching characteristics normally found only in slower comparators.
The MAX9691/MAX9692/MAX9693 have differential
inputs and complementary outputs that are fully compatible with ECL-logic levels. 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.
The MAX9692/MAX9693 feature a latch-enable (LE)
function that allows the comparator to be used in a
sample-hold mode. When LE is ECL high, the comparator functions normally. When LE is driven ECL low, the
outputs are forced to an unambiguous ECL-logic state,
dependent on the input conditions at the time of the
latch input 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
LE input must be connected to a high ECL logic level.
These devices are available in SO, QSOP, and tiny
µMAX packages for added space savings.
________________________Applications
High-Speed Line Receivers
Peak Detectors
Threshold Detectors
High-Speed Triggers
Features
♦ 1.2ns Propagation Delay
♦ 100ps Propagation Delay Skew
♦ 150ps Dispersion
♦ 0.5ns Latch Setup Time
♦ 0.5ns Latch-Enable Pulse Width
♦ Available in µMAX and QSOP Packages
♦ +5V, -5.2V Power Supplies
MAX9691/MAX9692/MAX9693
Single/Dual, Ultra-Fast, ECL-Output
Comparators with Latch Enable
________________________________________________________________ Maxim Integrated Products 1
_________________________________________________________Functional Diagrams
19-1789; Rev 0; 8/00
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Ordering Information
Ordering Information continued at the end of data sheet.
Pin Configurations appear at end of data sheet.
Selector Guide
PART
MAX9691EUA -40°C to +85°C8 µMAX
MAX9691ESA -40°C to +85°C 8 SO
MAX9691EPA -40°C to +85°C 8 PDIP
PART
MAX9691 1 No
MAX9692 1 Yes
MAX9693 2 Yes
COMPARATORS
PER PACKAGE
TEMP.
RANGE
ENABLE
PIN-PACKAGE
LATCH
PINPACKAGE
8 µMAX,
8 SO, 8 PDIP
10 µMAX,
16 SO, 16 PDIP
16 QSOP,
16 SO, 16 PDIP
NONINVERTING
IN+
IN-
R
R
L
MAX9691
L
V
Q OUT
Q OUT
T
THE OUTPUTS ARE OPEN EMITTERS, REQUIRING EXTERNAL PULLDOWN
RESISTORS. THESE RESISTORS MAY BE IN THE RANGE OF 50Ω TO 200Ω
CONNECTED TO -2.0V, OR 240Ω TO 2000Ω CONNECTED TO -5.2V.
INPUT
INVERTING
INPUT
R
MAX9693 MAX9693
LATCH ENABLE
L
LE LE
R
Q OUT
L
Q OUT
V
R
L
T
R
NONINVERTING
L
LE LE
LATCH ENABLE
INPUT
INVERTING
INPUT
MAX9691/MAX9692/MAX9693
Single/Dual, Ultra-Fast, ECL-Output
Comparators with Latch Enable
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= +5V, VEE= -5.2V, RL= 50Ω to VT, VT= -2V, LE = 0, TA= T
MIN
to T
MAX
, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (VCC) ...............................................-0.3V to +6V
Supply Voltage (VEE)................................................-6V to +0.3V
Input Voltage....................................(VCC+ 0.3V) to (VEE- 0.3V)
Output Short-Circuit Duration ....................................Continuous
Differential Input Voltage ......................................................±5V
Latch Enable ...............................................(V
EE
- 0.3V) to +0.3V
Output Current ....................................................................50mA
Input Current ....................................................................±25mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.1mW/°C above 70°C)...............330mW
8-Pin SO (derate 5.88mW/°C above +70°C) ...............471mW
8-Pin PDIP (derate 10.53mW/°C above +70°C)...........842mW
10-Pin µMAX (derate 5.6mW/°C above +70°C)...........444mW
16-Pin QSOP (derate 8.3mW/°C above +70°C) ..........667mW
16-Pin SO (derate 8.7mW/°C above +70°C) ...............696mW
16-Pin PDIP (derate 9.09mW/°C above +70°C) ..........727mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-55°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
)
)
Input Offset Voltage V
Temperature Coefficient ∆VOS/∆T10µV/°C
Input Offset Current I
Input Bias Current I
Input Voltage Range V
Common-Mode Rejection Ratio CMRR -2.5V ≤ VCM ≤ +3.0V (Note 1) 60 80 dB
Positive Power-Supply Rejection
Ratio
Negative Power-Supply
Rejection Ratio
Open-Loop Gain AOL VCM = 0 70 dB
Differential Input Resistance R
Differential Input Clamp Voltage 1.7 V
Input Capacitance C
Latch Enable Input Current High I
Latch Enable Input Current Low I
Latch E nab l e Log i c H i g h V ol tag eV
Latch Enable Logic Low Voltage V
Logic Output Low Voltage V
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
OS
OS
B
CM
+PSRR 4.5V ≤ V
-PSRR -5.7V ≤ V
IH(LE)
IL(LE)
IH(LE
IL(LE
OH
TA = +25°C -6.5 6.5
T
= T
to T
MIN
A
MAX
TA = +25°C 0.2 5
T
= T
A
to T
MIN
MAX
TA = +25°C620
T
= T
A
to T
MIN
MAX
Note 1 -2.5 +3.0 V
≤ 5.5V 60 dB
CC
≤ -4.7V 60 dB
EE
IN
IN
-10mV < V
V
IH(LE)
V
IL(LE)
TA = T
TA = T
< 10mV 60 kΩ
IN
= 1.1V 60 120 µA
= 1.5V 0.2 10 µA
MIN
MAX
TA = +25°C -1.06 -0.76
TA = T
MIN
TA = T
OL
MAX
TA = +25°C -1.89 -1.55
-11.5 11.5
8
30
3pF
-1.1 V
-1.5 V
-1.2 -0.87
-0.99 -0.70 Logic Output High Voltage V
-1.93 -1.57
-1.89 -1.51
mV
µA
µA
V
V
MAX9691/MAX9692/MAX9693
Single/Dual, Ultra-Fast, ECL-Output
Comparators with Latch Enable
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +5V, VEE= -5.2V, RL= 50Ω to VT, VT= -2V, LE = 0, TA= T
MIN
to T
MAX
, unless otherwise noted.)
Note 1: Guaranteed by design.
Note 2: V
IN
= 100mV, VOD= 10mV.
AC ELECTRICAL CHARACTERISTICS
(VCC= 5V, VEE= -5.2V, RL= 50Ω to VT, VT= -2V, LE = 0, TA= T
MIN
to T
MAX
, unless otherwise noted.)
p
p
pw(LE)
pag
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX9693
Supply Current I
CC
MAX9691/
MAX9692
TA = +25°C3446
= T
MIN
to T
MAX
T
A
TA = +25°C1826
T
= T
MIN
to T
MAX
A
50
36
mA
PARAMETER
SYMBOL CONDITIONS MIN TYP MAX
MAX9691/MAX9692/MAX9693
Propagation Delay (Notes 1, 2) t
d+
Rise/Fall Time tr, t
Propagation Delay Skew ∆
Dispersion P
DSP
, t
PD
TA = +25°C 1.2 1.8
d-
TA = T
10% to 90% 500 ps
f
MIN
to T
VOD from 10mV to 100mV 150 ps
MAX9692/MAX9693
Latch-Enable Time (Note 1) TLE(±)
TA = +25°C 1.0 1.8
= T
MIN
to T
T
A
Latch- Enab le P ul se Wi d th (N ote 1) t
Setup Time (Note 1) t
Hold Time (Note 1) t
Channel-to-Channel
ation Match
Pro
t
PDM
s
h
Note 2 (MAX9693 only) 100 ps
MAX
MAX
UNITS
2.0
ns
100 ps
2.0
ns
0.5 1.0 ns
0.5 1.0 ns
0.5 1.0 ns
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