Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsLinear IC - Comparator + lock Complementary, ECL PDIP 16

General Description

The MAX9691/MAX9692/MAX9693 are ultra-fast ECL

comparators capable of very short propagation delays.

Their design maintains the excellent DC matching char-

acteristics normally found only in slower comparators.

The MAX9691/MAX9692/MAX9693 have differential

inputs and complementary outputs that are fully com-

patible with ECL-logic levels. Output current levels are

capable of driving 50Ω terminated transmission lines.

The ultra-fast operation makes signal processing possi-

ble 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 compara-

tor 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

o 1.2ns Propagation Delay

o 100ps Propagation Delay Skew

o 150ps Dispersion

o 0.5ns Latch Setup Time

o 0.5ns Latch-Enable Pulse Width

o Available in µMAX and QSOP Packages

o +5V, -5.2V Power Supplies

MAX9691/MAX9692/MAX9693

Single/Dual, Ultra-Fast, ECL-Output

Comparators with Latch Enable

________________________________________________________________

Maxim Integrated Products

IN+

IN-

Q OUT

MAX9691

NONINVERTING

INPUT

INVERTING

INPUT

NONINVERTING

INPUT

INVERTING

INPUT

Q OUT

LATCH ENABLE

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.

MAX9693 MAX9693

LE LE

LATCH ENABLE

LE LE

_________________________________________________________

Functional Diagrams

19-1789; Rev 2; 1/12

Ordering Information

Ordering Information continued at the end of data sheet.

Pin Configurations appear at end of data sheet.

PART

TEMP

RANGE

PIN-PACKAGE

MAX9691EUA -40°C to +85°C 8 µMAX

MAX9691ESA -40°C to +85°C 8 SO

MAX9691EPA -40°C to +85°C 8 PDIP

Selector Guide

PART

COMPARATORS

PER PACKAGE

LATCH

ENABLE

PIN-

PACKAGE

MAX9691 1 No

8 µMAX,

8 SO, 8 PDIP

MAX9692 1 Yes

10 µMAX,

16 SO, 16 PDIP

MAX9693 2 Yes

16 QSOP,

16 SO, 16 PDIP

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Note: Devices are also available in lead(Pb)-free/RoHS-compli-

ant packages. Specify lead-free by adding a “+” after the part

number.

µMAX is a registered trademark of Maxim Integrated Products, Inc.

Summary of content (12 pages)

PAGE 1
9-1789; Rev 2; 1/12 Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable Features o 1.2ns Propagation Delay 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.
PAGE 2
MAX9691/MAX9692/MAX9693 Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable ABSOLUTE MAXIMUM RATINGS 8-Pin PDIP (derate 9.1mW/°C above +70°C) ...........727.3mW 10-Pin µMAX (derate 8.8mW/°C above +70°C) ...........707.3mW 16-Pin QSOP (derate 9.6mW/°C above +70°C) .........771.5mW 16-Pin SO (derate 13.3mW/°C above +70°C) ..........1066.7mW 16-Pin PDIP (derate 10.5mW/°C above +70°C) .......842.1mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature .......
PAGE 3
Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable (VCC = +5V, VEE = -5.2V, RL = 50Ω to VT, VT = -2V, LE = 0, TA = TMIN to TMAX, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS MAX9693 Supply Current ICC MIN TA = +25°C TYP MAX 34 46 18 26 TA = TMIN to TMAX 50 TA = +25°C MAX9691/ MAX9692 TA = TMIN to TMAX UNITS mA 36 AC ELECTRICAL CHARACTERISTICS (VCC = 5V, VEE = -5.2V, RL = 50Ω to VT, VT = -2V, LE = 0, TA = TMIN to TMAX, unless otherwise noted.
PAGE 4
Typical Operating Characteristics (VCC = +5V, VEE = -5.2V, RL = 50Ω to VT, VT = -2V, VOD = 10mV, TA = +25°C, unless otherwise noted.) WORST-CASE PROPAGATION DELAY vs. INPUT OVERDRIVE 600 3000 2000 10 20 30 40 50 60 70 80 90 100 0 INPUT OVERDRIVE (mV) WORST-CASE PROPAGATION DELAY vs. TEMPERATURE 1000 -1.64 RPULLDOWN = 200Ω 60 -1.78 85 -1.80 -40 -15 10 35 60 -40 85 -15 10 35 60 85 TEMPERATURE (°C) TEMPERATURE (°C) INPUT OFFSET VOLTAGE vs. TEMPERATURE INPUT BIAS CURRENT vs.
PAGE 5
Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable 100MHz OUTPUT RESPONSE PROPAGATION DELAY MAX9691/3-12 MAX9691/3-11 VIN = 100mV VOD = 10mV -1.0V VIN 200mV/div Q OUT 200mV/div -1.8V -1.0V Q OUT 200mV/div Q OUT - Q OUT 200mV/div -1.8V 1ns/div 1ns/div Pin Description PIN NAME FUNCTION MAX9691 MAX9692 µMAX MAX9692 PDIP/SO MAX9693 1 1 2 11 VCC Positive Supply. Bypass to GND with a 0.1µF capacitor.
PAGE 6
MAX9691/MAX9692/MAX9693 Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable __________ Applications Information Layout Because of the MAX9691/MAX9692/MAX9693s’ large gain-bandwidth characteristic, special precautions must be taken to use them. A PC board with a ground plane is mandatory. Mount 0.01µF ceramic decoupling capacitors as close to the power-supply pins as possible, and process the ECL outputs in microstrip fashion, consistent with the load termination of 50Ω to 200Ω (for VT = -2V).
PAGE 7
Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable sistors are similar in timing. The input signal must occur at time ts before the latch falling edge, and must be maintained for time th after the edge to be acquired. After th, the output is no longer affected by the input status until the latch is again strobed. A minimum latch pulse width of tpw(LE) is needed for the strobe operation, and the output transitions occur after a time tLE(±). The MAX9691/MAX9692/MAX9693 will not false trip (i.e.
PAGE 8
MAX9691/MAX9692/MAX9693 Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable Definition of Terms VOS VIN VOD tpd+ tpd- tLE(+) tLE(-) Input Offset Voltage. The voltage required between the input terminals to obtain 0V differential at the output. Input Voltage Pulse Amplitude Input Voltage Overdrive Input to Output High Delay. The propagation delay measured from the time the input signal crosses the input offset voltage to the 50% point of an output low-to-high transition.
PAGE 9
Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable TOP VIEW MAX9691 MAX9692 VCC 1 10 GND1 IN+ 2 9 GND2 IN- 3 8 Q OUT N.C. 4 7 Q OUT LE 5 6 VEE VCC 1 8 GND1 IN+ 2 7 GND2 IN- 3 6 Q OUT VEE 4 5 Q OUT µMAX DIP/SO/µMAX MAX9692 MAX9693 GND1 1 16 GND2 Q OUTA 1 16 Q OUTB VCC 2 15 N.C. Q OUTA 2 15 Q OUTB IN+ 3 14 N.C. GND 3 14 GND IN- 4 13 N.C. LEA 4 13 LEB N.C. 5 12 Q OUT LEA 5 12 LEB LE 6 11 Q OUT VEE 6 11 VCC 10 N.C.
PAGE 10
MAX9691/MAX9692/MAX9693 Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable Package Information (continued) For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.
PAGE 11
Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.
PAGE 12
MAX9691/MAX9692/MAX9693 Single/Dual, Ultra-Fast, ECL-Output Comparators with Latch Enable Revision History REVISION NUMBER REVISION DATE DESCRIPTION 0 8/00 Initial release 1 10/02 Updated Ordering Information. 2 1/12 Revised Ordering Information, Absolute Maximum Ratings, and Pin Description. PAGES CHANGED — 7 1, 2, 5, 7 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.