MAX3089ECSD+ Maxim Integrated Products, MAX3089ECSD+ Datasheet - Page 15

• Manufacturer Part Number: MAX3089ECSD+
• Description: IC TXRX RS485/422 10MBPS 14-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3089ECSD+

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Package: 14SOIC N
• Data Transmission Topology: Multidrop|Multipoint
• Interface Standards: EIA/TIA-485|RS-422|RS-485
• Data Rate: 10(Min) Mbps
• Function: Cable Transceiver
• Number Of Transmitters: 1
• Transmitter Signal Type: Differential
• Transmitter Communication Type: RS-422|RS-485
• Driving Mode: 3-State
• Typical Single Supply Voltage: 5 V
• Operating Supply Voltage: 5 V
• Supply Current: 0.375 mA
• Operating Temperature Range: - 40 C to + 125 C
• Input Voltage: 5 V
• Maximum Power Dissipation: 667 mW
• Mounting Style: SMD/SMT
• Output Current: +/- 1 uA
• Output Voltage: +/- 13 V
• Product: RS-422/RS-485 Combination
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

±15kV ESD-Protected, Fail-Safe, High-Speed (10Mbps),
Figure 4. MAX3089E Pin Configuration and Functional Diagram
Figure 5. Driver DC Test Load
The ESD-protected pins are tested with reference to the
ground pin in a powered-down condition. They are test-
ed to ±15kV using the Human Body Model.
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents
test setup, test methodology, and test results.
Figure 14a shows the Human Body Model, and Figure
14b shows the current waveform it generates when dis-
GND
TOP VIEW
SRL
H/F
RO
DE
RE
DI
1
2
3
4
5
6
7
NOTE: SWITCH POSITIONS
INDICATED FOR H/F = GND
Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX3089E
DIP/SO
Y
Z
______________________________________________________________________________________
V
OD
14
13
12
11
10
9
8
V
RXP
A
B
Z
Y
TXP
CC
R
R
RXP
H/F
TXP
ESD Test Conditions
RD
DI
Human Body Model
V
OC
V
CC
RE
GND
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of inter-
est, which is then discharged into the test device
through a 1.5kΩ resistor.
The Machine Model for ESD tests all pins using a
200pF storage capacitor and zero discharge resis-
tance. The objective is to emulate the stress caused
when I/O pins are contacted by handling equipment
during test and assembly. All pins require this protec-
tion, not just RS-485 inputs and outputs.
Figure 6. Receiver Enable/Disable Timing Test Load
DE
MAX3089E
RECEIVER
SRL
OUTPUT
15pF
C
TEST POINT
RL
1k
S1
S2
Machine Model
1k
V
CC
A
B
Z
Y
15