LT685CN Linear Technology, LT685CN Datasheet - Page 4

• Manufacturer Part Number: LT685CN
• Description: IC COMP HI-SPD ECL OUTPUT 16-DIP
• Manufacturer: Linear Technology
• Type: with Latchr

Specifications of LT685CN

• Number Of Elements: 1
• Output Type: Complementary, ECL
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LT685
SWITCHI G CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: For the metal can package, derate at 6.8mW/°C for operation at
ambient temperatures above 100°C; for the hermetic dual-in-line package,
derate at 9mW/°C for operation at ambient temperatures above 105°C.
Note 3: Guaranteed by design, but not tested.
Note 4: Sample tested at 25°C only.
SYMBOL
t
t
t
t
t
4
PD
PD(E)
S
H
PW(E)
PARAMETER
Propagation Delay
(Note 4)
Latch Enable to
Output Delay
(Note 3)
Minimum Set-Up Time
(Note 3)
Minimum Hold Time
(Note 3)
Minimum Latch Enable
Pulse Width (Note 3)
U
CONDITIONS
T
T
T
T
T
T
T
T
T
T
T
A
A
A
A
A
A
MIN
A
MIN
MIN
A
= 25°C
= T
= T
= 25°C
= T
= T
= T
= T
≤ T
≤ T
≤ T
MAX
MIN
MAX
MIN
MAX
MAX
A
A
A
≤ 25°C
≤ T
≤ 25°C
MAX
(V
IN
= 100mV step, 5mV overdrive)
Definitions:
t
crosses the input offset voltage to the 50% point of the output transition.
t
enable signal positive transition to the 50% point of the output transition.
t
signal that an input signal change must be present in order to be acquired
and held at the outputs.
t
signal that the input signal must remain unchanged in order to be acquired
and held at the outputs.
t
order to acquire and hold an input signal change.
PD
PD(E)
S
H
PW (E)
MIN
: The minimum time before the negative transition of the latch enable
: The minimum time after the negative transition of the latch enable
4.5
5.0
4.0
4.5
5.0
4.0
: The propagation delay measured from the time the input signal
: The propagation delay measured from the 50% point of the latch
: The minimum time that the latch enable signal must be HIGH in
LT685C
TYP
5.5
5.5
MAX
6.5
9.5
6.5
6.5
9.5
6.5
3.0
4.0
1.0
3.0
4.0
MIN
4.5
5.5
3.5
4.5
5.5
3.5
LT685M
TYP
5.5
5.5
MAX
6.5
6.5
6.5
6.5
3.0
6.0
1.0
3.0
5.0
12
12
UNITS
685fa
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns