MAXIM MAX9691, MAX9692, 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

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

1

_________________________________________________________

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.

Selector Guide

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.

PART

MAX9691EUA -40°C to +85°C 8 µMAX

MAX9691ESA -40°C to +85°C 8 SO

MAX9691EPA -40°C to +85°C 8 PDIP

TEMP

RANGE

PIN-PACKAGE

PART

MAX9691 1 No

MAX9692 1 Yes

MAX9693 2 Yes

COMPARATORS

PER PACKAGE

LATCH

ENABLE

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

T

NONINVERTING

INPUT

INVERTING

INPUT

R

L

R

L

LE LE

LATCH ENABLE

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 (TA= +70°C)

8-Pin µMAX (derate 4.8mW/°C above 70°C)...............387.8mW

8-Pin SO (derate 7.4mW/°C above +70°C)..................588.2mW

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......................................................+150°C

Storage Temperature Range .............................-55°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

)

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Offset Voltage V

OS

Temperature Coefficient ∆VOS/∆T 10 µV/°C

Input Offset Current I

Input Bias Current I

Input Voltage Range V

OS

B

CM

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

+PSRR 4.5V ≤ V

-PSRR -5.7V ≤ V

Open-Loop Gain AOL VCM = 0V 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

IH(LE)

IL(LE)

IH(LE

IL(LE

OH

OL

TA = +25°C -6.5 6.5

T

= T

A

to T

MIN

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

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 -0.70Logic 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)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

MAX9693

Supply Current I

CC

MAX9691/
MAX9692

TA = +25°C 34 46

to T

= T

T

A

MIN

MAX

TA = +25°C 18 26

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

PD

TA = +25°C 1.2 1.8

, t

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

= T

MIN

to 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
Propagation Match

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

MAX9691/MAX9692/MAX9693

Single/Dual, Ultra-Fast, ECL-Output
Comparators with Latch Enable

4 _______________________________________________________________________________________

Typical Operating Characteristics

(VCC= +5V, VEE= -5.2V, RL= 50Ω to VT, VT= -2V, V

OD

= 10mV, TA= +25°C, unless otherwise noted.)

WORST-CASE PROPAGATION DELAY

vs. INPUT OVERDRIVE

1400

1200

1000

800

PROPAGATION DELAY (ps)

600

400

0405020 3010 60 70 80 90 100

INPUT OVERDRIVE (mV)

MAX9691/3-01

WORST-CASE PROPAGATION DELAY

vs. TEMPERATURE

1400

1300

1200

1100

1000

900

PROPAGATION DELAY (ps)

800

700

600

-40 -15 10 35 60 85
TEMPERATURE (°C)

VOD = 100mV

MAX9691/3-04

WORST-CASE PROPAGATION DELAY

vs. SOURCE IMPEDANCE

6000

5000

4000

3000

2000

PROPAGATION DELAY (ps)

1000

0

0 20015050 100 250 300 350 400 450 500

SOURCE IMPEDANCE (Ω)

OUTPUT HIGH VOLTAGE

vs. TEMPERATURE

-0.6

-0.7

R

PULLDOWN

-0.8

(V)

OH

V

-0.9

-1.0

-1.1

-40 10-15 35 60 85

R

PULLDOWN

= 200Ω

R

PULLDOWN

TEMPERATURE (°C)

= 100Ω

= 50Ω

1800

MAX9691/3-02

1600

1400

1200

1000

PROPAGATION DELAY (ps)

800

600

0105 152025

-1.60

-1.62

MAX9691/3-05

-1.64

-1.66

-1.68

(V)

-1.70

OL

V

-1.72

-1.74

-1.76

-1.78

-1.80

-40 10-15 35 60 85

WORST-CASE PROPAGATION DELAY

vs. C

LOAD

C

(pF)

LOAD

OUTPUT LOW VOLTAGE

vs. TEMPERATURE

R

= 100Ω

PULLDOWN

R

= 200Ω

PULLDOWN

R

= 50Ω

PULLDOWN

TEMPERATURE (°C)

MAX9691/3-03

MAX9691/3-06

INPUT OFFSET VOLTAGE

vs. TEMPERATURE

2000

1500

1000

500

0

-500

-1000

INPUT OFFSET VOLTAGE (µV)

-1500

-2000

-40 -15 10 35 60 85
TEMPERATURE (°C)

MAX9691/3-08

8.0

7.5

7.0

6.5

6.0

5.5

INPUT BIAS CURRENT (µA)

5.0

4.5

4.0

-40 -15 10 35 60 85

INPUT BIAS CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

5000

4000

MAX9691/3-09

3000

2000

1000

0

-1000

-2000

INPUT BIAS CURRENT (µA)

-3000

-4000

-5000

-5 -3 -2 -1-4 012 435

INPUT BIAS CURRENT

vs. DIFFERENTIAL INPUT VOLTAGE

DIFFERENTIAL INPUT VOLTAGE (V)

MAX9691/3-10