MAX238CNG+ Maxim Integrated Products, MAX238CNG+ Datasheet - Page 10

• Manufacturer Part Number: MAX238CNG+
• Description: IC 4DVR/4RCVR RS232 5V 24-DIP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX238CNG+

• Number Of Drivers/receivers: 4/4
• Protocol: RS232
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Through Hole
• Package / Case: 24-DIP (0.300", 7.62mm)
• Package: 24PDIP N
• Data Transmission Topology: Point-to-Point
• Interface Standards: EIA/TIA-232-E|RS-232|V.24|V.28
• Data Rate: 0.12 Mbps
• Function: Line Transmitter/Receiver
• Number Of Transmitters: 4
• Transmitter Signal Type: Single-Ended
• Transmitter Communication Type: RS-232
• Typical Single Supply Voltage: 5 V
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Interface: RS-232
• Maximum Power Dissipation: 500 mW
• Minimum Operating Temperature: 0 C
• Supply Current: 7 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

+5V-Powered, Multichannel RS-232
Drivers/Receivers
10
__________________________________________Typical Operating Characteristics
18
16
14
12
10
8
6
4
2
______________________________________________________________________________________
0
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
1
LOAD CAPACITANCE (nF)
EXTERNAL POWER SUPPLY
1μF CAPACITORS
2
3
40kb/s DATA RATE
8 TRANSMITTERS
LOADED WITH 3kΩ
V
4
CC
= +5V
5
MAX225/MAX244–MAX249
-10
10
-2
-4
-6
-8
8
6
4
2
0
0
V
EXTERNAL CHARGE PUMP
1μF CAPACITORS
8 TRANSMITTERS
DRIVING 5kΩ AND
2000pF AT 20kb/s
V+ AND V- LOADED
vs. LOAD CURRENT FOR V+ AND V-
V+ AND V- LOADED
CC
= +5V
5
10
OUTPUT VOLTAGE
LOAD CURRENT (mA)
15
20
EITHER V+ OR
V- LOADED
25
V- LOADED
V+ LOADED
30
35
7.5
8.5
8.0
7.0
6.5
6.0
5.5
9.0
5.0
TRANSMITTER OUTPUT VOLTAGE (V+, V-)
0
ALL CAPACITIORS 1μF
V
CC
vs. LOAD CAPACITANCE AT
= +5V WITH ALL TRANSMITTERS DRIVEN
DIFFERENT DATA RATES
1
LOAD CAPACITANCE (nF)
200kb/s
2
3
LOADED WITH 5kΩ
100kb/s
40kb/s
10kb/s
20kb/s
60kb/s
4
5