LT1715IMS Linear Technology, LT1715IMS Datasheet - Page 14

• Manufacturer Part Number: LT1715IMS
• Description: IC COMPARATOR 150MHZ DUAL 10MSOP
• Manufacturer: Linear Technology
• Series: UltraFast™r
• Type: General Purposer

Specifications of LT1715IMS

• Number Of Elements: 2
• Output Type: CMOS, Rail-to-Rail, TTL
• Voltage - Supply: 2.7 V ~ 12 V
• Mounting Type: Surface Mount
• Package / Case: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATIONS INFORMATION
LT1715
Of course, if the V
ECL negative supply, the GND pin can be tied to it as well
and +V
powerrails as the ECL and the circuits of Figure 8b can
be used.
For all the dividers shown, the output impedance is about
110Ω. This makes these fast, less than a nanosecond,with
most layouts. Avoid the temptation to use speed up capaci-
14
S
grounded. Then the output stage has the same
(a) STANDARD TTL TO PECL TRANSLATOR
(b) LT1715 OUTPUT TO PECL TRANSLATOR
(c) 3V LT1715 OUTPUT TO PECL TRANSLATOR
(d) LT1715 OUTPUT TO STANDARD ECL TRANSLATOR
EE
1/2 LT1715
1/2 LT1715
1/2 LT1715
V
V
V
V
V
V
CC
EE
CC
EE
CC
EE
of the LT1715 is the same as the
LSTTL
+V
3V
S
5V
180Ω
270Ω
820Ω
R1
R4
R4
R1
+V
R1
S
V
R2
R3
ECL
5V
R2
R3
R2
10KH/E
R3
V
ECL
DO NOT USE FOR LT1715
LEVEL TRANSLATION. SEE TEXT
10KH/E
100K/E
10KH/E
100K/E
Figure 8
5V OR 5.2V
ECL FAMILY
5V OR 5.2V
4.5V
tors. Not only can they foul up the operation of the ECL
gate because of overshoots, they can damage the ECL
inputs, particularly during power-up of separate supply
confi gurations.
The level translator designs assume one gate load. Multiple
gates can have signifi cant I
sion line routing and termination issues also make this
case diffi cult.
+V
10KH/E
100K/E
S
V
4.5V
ECL
510Ω
620Ω
R1
–5.2V
–4.5V
300Ω
330Ω
V
R1
ECL
180Ω
180Ω
R2
180Ω
180Ω
R2
+V
5V
3V
5V
3V
S
750Ω
510Ω
R3
1500Ω
OMIT
560Ω
270Ω
680Ω
330Ω
R3
R1
1000Ω
560Ω
270Ω
510Ω
270Ω
390Ω
R4
R2
IH
330Ω
300Ω
300Ω
270Ω
loading, and the transmis-
R3
1200Ω
1500Ω
330Ω
430Ω
R4
1715 F08
1715fa