Rainbow Electronics MAX9693 - 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 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 50
Ω 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
♦ 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
IN+
R L R L
IN-
V T
Q OUT
Q OUT
MAX9691
NONINVERTING
INPUT
RL RL
V T
INVERTING
INPUT
NONINVERTING
INPUT
INVERTING
INPUT
Q OUT
Q OUT
RL RL
LATCH ENABLE
THE OUTPUTS ARE OPEN EMITTERS, REQUIRING EXTERNAL PULLDOWN
RESISTORS. THESE RESISTORS MAY BE IN THE RANGE OF 50
Ω TO 200Ω
CONNECTED TO -2.0V, OR 240 Ω TO 2000Ω CONNECTED TO -5.2V.
MAX9693 MAX9693
LE LE
LATCH ENABLE
LE LE
_________________________________________________________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.
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