3
LTC1518/LTC1519
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Max V
ID
for Fail-Safe Detection –7V ≤ V
CM
≤ 12V 25 mV
Min Time to Detect Fault Condition 2 µs
CMRR Common Mode Rejection Ratio V
CM
= 2.5V, f = 26MHz (Note 4) 45 dB
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
PLH
, t
PHL
Input-to-Output Propagation Delay C
L
= 15pF, 0°C ≤ T
A
≤ 70°C (Figure 1) ● 15 18.5 22 ns
C
L
= 15pF, –40°C ≤ T
A
≤ 85°C (Figure 1) ● 12 25 ns
t
r
, t
f
Rise/Fall Times C
L
= 15pF 2.5 ns
t
SKD
t
PLH
– t
PHL
Skew C
L
= 15pF, Same Receiver (Note 5) 500 ps
t
ZL
Enable to Output Low C
L
= 15pF, 0°C ≤ T
A
≤ 70°C (Figure 2) ● 10 35 ns
C
L
= 15pF, –40°C ≤ T
A
≤ 85°C (Figure 2) 15 ns
t
ZH
Enable to Output High C
L
= 15pF, 0°C ≤ T
A
≤ 70°C (Figure 2) ● 10 35 ns
C
L
= 15pF, –40°C ≤ T
A
≤ 85°C (Figure 2) 15 ns
t
LZ
Disable from Output Low C
L
= 15pF, 0°C ≤ T
A
≤ 70°C (Figure 2) ● 20 35 ns
C
L
= 15pF, –40°C ≤ T
A
≤ 85°C (Figure 2) 25 ns
t
HZ
Disable from Output High C
L
= 15pF, 0°C ≤ T
A
≤ 70°C (Figure 2) ● 20 35 ns
C
L
= 15pF, –40°C ≤ T
A
≤ 85°C (Figure 2) 25 ns
t
CH-CH
Channel-to-Channel Skew C
L
= 15pF (Figure 3, Note 6) 500 ps
t
PKG-PKG
Package-to-Package Skew C
L
= 15pF, Same Temperature 1.5 ns
(Figure 4, Note 4)
t
r
, t
f
Input Maximum Input Rise or Fall Time (Note 4) ● 2000 ns
Minimum Input Pulse Width 0°C ≤ T
A
≤ 70°C (Note 4) ● 12 19.2 ns
–40°C ≤ T
A
≤ 85°C (Note 4) ● 16 25 ns
f
IN(MAX)
Maximum Input Frequency Square Wave, 0°C ≤ T
A
≤ 70°C (Note 4) ● 26 40 MHz
Square Wave, –40°C ≤ T
A
≤ 85°C (Note 4) ● 20 30 MHz
Maximum Data Rate 0°C ≤ T
A
≤ 70°C (Note 4) ● 52 80 Mbps
–40°C ≤ T
A
≤ 85°C (Note 4) ● 40 65 Mbps
C
L
Load Capacitance (Note 4) 500 pF
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
DD
= 5V ±5% (Notes 2, 3) V
ID
= 1.5V, V
CM
= 2.5V, unless otherwise noted.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into the device pins are positive; all currents out of the
device pins are negative.
Note 3: All typicals are given for V
DD
= 5V, T
A
= 25°C.
Note 4: Guaranteed by design, but not tested.
Note 5: Worst-case
t
PLH
– t
PHL
skew for a single receiver in a package
over the full operating temperature range.
Note 6: Maximum difference between any two t
PLH
or t
PHL
transitions in a
single package over the full operating temperature range.
Note 7: Short-circuit current does not represent output drive capability.
When the output detects a short-circuit condition, output drive current is
significantly reduced until the short is removed.
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
DD
= 5V ±5% (Notes 2, 3) per receiver, unless otherwise noted.
DC ELECTRICAL CHARACTERISTICS
SWITCHI G TI E CHARACTERISTICS
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