Datasheet

MAX3322E/MAX3323E
±15kV ESD-Protected, RS-232 Transceivers for
Multidrop Applications
4 _______________________________________________________________________________________
Typical Operating Characteristics
(V
CC
= 3.3V, V
L
= 3.3V, C1–C4 = 0.1µF, T
A
= +25°C.)
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX3322E toc01
LOAD CAPACITANCE (pF)
OUTPUT VOLTAGE (V)
4000300020001000
-5.0
-2.5
0
2.5
5.0
7.5
-7.5
0 5000
DATA RATE = 250kbps
LOAD = 3kΩ IN PARALLEL WITH C
L
SLEW RATE
vs. LOAD CAPACITANCE
MAX3322E toc02
LOAD CAPACITANCE (pF)
SLEW RATE (V/µs)
4000300020001000
3
6
9
12
15
18
0
0 5000
SLEW RATE-
SLEW RATE+
TRANSMITTER OUTPUT VOLTAGE
vs. DATA RATE
MAX3322E toc03
DATA RATE (kbps)
OUTPUT VOLTAGE (V)
20015010050
-5.0
-2.5
0
2.5
5.0
7.5
-7.5
0 250
LOAD = 3kΩ, 1000pF
ONE TRANSMITTER
SWITCHING AT DATA
RATE, OTHER
TRANSMITTER
AT 1/8 DATA RATE
SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX3322E toc04
LOAD CAPACITANCE (pF)
SUPPLY CURRENT (mA)
4000300020001000
10
20
30
40
0
0 5000
250kbps
125kbps
40kbps
LOAD = 3kΩ
ONE TRANSMITTER
SWITCHING AT DATA
RATE, OTHER
TRANSMITTER
AT 1/8 DATA RATE
RECEIVER INPUT RESISTANCE
vs. INPUT VOLTAGE RANGE
MAX3322E toc05
V
RIN
(V)
RECEIVER INPUT RESISTANCE (kΩ)
155-5-15
4.75
5.00
5.25
5.50
4.50
-25 25
RENABLE = 1
RECEIVER INPUT RESISTANCE
vs. INPUT VOLTAGE RANGE
MAX3322E toc06
V
RIN
(V)
RECEIVER INPUT RESISTANCE (MΩ)
155-5-15
1
2
3
4
5
0
-25 25
RENABLE = 0
V
L
= 5V