Datasheet

4
LTC1688/LTC1689
16889fa
TYPICAL PERFORMANCE CHARACTERISTICS
UW
Propagation Delay
vs Temperature
TEMPERATURE (°C)
14
12
10
8
6
4
2
0
PROPAGATION DELAY (ns)
1688/89 G01
0 20 40 60 80 100
V
DI
= 0V TO 3V
R
DIFF
= 50Ω
C
L
= 25pF
V
DD
= 3V
V
DD
= 5V
Supply Current vs Data Rate
DATA RATE (Mbps)
250
200
150
100
50
0
SUPPLY CURRENT (mA)
1688/89 G03
0 20 40 60 80 100 120
V
DD
= 5V
R
DIFF
= 50Ω, PER DRIVER
C
L
= 25pF, PER DRIVER
T
A
= 25°C
4 DRIVERS
SWITCHING
1 DRIVER
SWITCHING
LOAD CAPACITANCE (pF)
14
12
10
8
6
4
2
0
PROPAGATION DELAY (ns)
1688/89 G02
0 10 20 30 40 50 60
V
DI
= 0V TO 3V
R
DIFF
= 50Ω
T
A
= 25°C
V
DD
= 3V
V
DD
= 5V
Propagation Delay
vs Load Capacitance
TEMPERATURE (°C)
OUTPUT CURRENT (µA)
1688/89 G04
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 20 40 60 80 100
V
DD
= 5V
V
OUT
= 12V
V
OUT
= –7V
TEMPERATURE (°C)
2.5
2.0
1.5
1.0
0.5
0
V
OD2
1688/89 G05
0 20 40 60 80 100
R
DIFF
= 50Ω
V
DD
= 5V
V
DD
= 3V
TEMPERATURE (°C)
180
160
140
120
100
80
60
40
20
0
I
DD
(mA)
1688/89 G06
0 20 40 60 80 100
V
DD
= 5V
R
DIFF
= 50Ω, PER DRIVER
0.1Mbps
1 DRIVER LOADED
4 DRIVERS LOADED
Three-State Output Current
I
DD
vs TemperatureV
OD2
vs Temperature