SLLS567E − MAY 2003 − REVISED JANUARY 2004
MAX211
5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER
WITH
±15
kV ESD PROTECTION
PARAMETER MEASUREMENT INFORMATION
0V
SHDN
Input
Generator
(see Note B)
RS-232
Output
50
Ω
RL
CL
(see Note A)
Output
TEST CIRCUIT
tPHL (D)
3V
−3 V
SR(tr)
+
6V
or t
VOLTAGE WAVEFORMS
PLH (D)
3V
−3 V
3V
1.5 V
1.5 V
0V
tPLH (D)
VOH
VOL
t
PHL (D)
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 120 kbit/s, ZO = 50
Ω,
50% duty cycle, tr
≤
10 ns, tf
≤
10 ns.
Figure 2. Driver Slew Rate and Propagation Delay Times
0V
SHDN
3V
Generator
(see Note B)
RS-232
Output
50
Ω
RL
CL
(see Note A)
Input
tPHL (D)
Output
TEST CIRCUIT
50%
VOLTAGE WAVEFORMS
1.5 V
1.5 V
0V
tPLH (D)
VOH
50%
VOL
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 120 kbit/s, ZO = 50
Ω,
50% duty cycle, tr
≤
10 ns, tf
≤
10 ns.
Figure 3. Driver Pulse Skew
0V
SHDN
Input
Output
Generator
(see Note B)
50
Ω
0V
EN
TEST CIRCUIT
CL
(see Note A)
tPHL (R)
Output
50%
VOLTAGE WAVEFORMS
tPLH (R)
1.5 V
1.5 V
3V
−3 V
VOH
50%
VOL
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: ZO = 50
Ω,
50% duty cycle, tr
≤
10 ns, tf
≤
10 ns.
Figure 4. Receiver Propagation Delay Times
8
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
