SPT9689
DUAL ULTRAFAST VOLTAGE COMPARATOR
FEATURES
APPLICATIONS
• 650 ps Propagation Delay
• 100 ps Propagation Delay Variation
• 70 dB CMRR
• Low Feedthrough and Crosstalk
• Differential Latch Control
• ECL Compatible
• Automated Test Equipment
• High Speed Instrumentation
• Window Comparators
• High Speed Timing
• Line Receivers
• High Speed Triggers
• Threshold Detection
• Peak Detection
ECL-compatible complimentary digital outputs are capable
of driving 50 Ω terminated transmission lines and providing
GENERAL DESCRIPTION
The SPT9689 is a Subnanosecond monolithic dual com-
parator. The propagation delay variation is less than 100 ps
from 5 to 50 mV input overdrive voltage. The input slew rate
is 10 V/ns. The device utilizes a high precision differential
input stage with a common-mode range of -2.5 V to +4.0 V.
30 mA output drive. The SPT9689 is pin compatible with the
SPT9687. It is available in 16-lead sidebrazed DIP, 20-lead
PLCC and 20-contact LCC packages over the industrial
temperature range. The SPT9689 is also available in die
form.
BLOCK DIAGRAM
INVERTING
INPUT
NONINVERTING
INPUT
-
+
LATCH ENABLE
LATCH ENABLE
A
Q OUTPUT
Q OUTPUT
V
EE
V
GND
B
CC
GND
A
Q OUTPUT
Q OUTPUT
B
LATCH ENABLE
LATCH ENABLE
+
-
INVERTING
INPUT
NONINVERTING
INPUT
Signal Processing Technologies, Inc.
4755 Forge Road, Colorado Springs, Colorado 80907, USA
Phone: (719) 528-2300 FAX: (719) 528-2370 Website: http://www.spt.com E-Mail: sales@spt.com