MAX3490ESA+ Maxim Integrated Products, MAX3490ESA+ Datasheet - Page 10

• Manufacturer Part Number: MAX3490ESA+
• Description: IC TXRX RS485/422 10MBPS 8SOIC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3490ESA+

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Data Rate: 12000 Kbps
• Propagation Delay Time Ns: 22 ns
• Operating Supply Voltage: 3.3 V
• Supply Current: 1 mA
• Operating Temperature Range: - 40 C to + 85 C
• Input Voltage: 3.3 V
• Maximum Power Dissipation: 471 mW
• Mounting Style: SMD/SMT
• Output Current: +/- 8 mA to +/- 60 mA
• Output Voltage: - 7.5 V to + 12.5 V
• Product: RS-422/RS-485 Combination
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Note 4: The input pulse is supplied by a generator with the following characteristics: f = 250kHz, 50% duty cycle, t
Note 5: C
3.3V-Powered, ±15kV ESD-Protected, 12Mbps and
Slew-Rate-Limited True RS-485/RS-422 Transceivers
Figure 11. Receiver Propagation Delay
Figure 12. Receiver Enable and Disable Times
10
OUT
OUT
IN
IN
______________________________________________________________________________________
GENERATOR
(NOTE 4)
0.25V
L
1.5V
includes probe and stray capacitance.
0
1.5V
-1.5V
1.5V
50
t
PRHZ
t
t
PRSH
PRZH
GENERATOR
S3
V
(NOTE 4)
ID
1.5V
1.5V
R
V
ID
50
R
3V
0
V
0
3V
0
V
0
OUT
V
OH
OH
OM
=
S1 OPEN
S2 CLOSED
S3 = 1.5V
S1 OPEN
S2 CLOSED
S3 = 1.5V
C
(NOTE 5)
V
CC
L
2
= 15pF
C
(NOTE 5)
L
1k
OUT
OUT
OUT
IN
IN
IN
t
RPLH
0.25V
S1
S2
1.5V
1.5V
t
V
PRLZ
OM
t
t
PRSL
PRZL
1.5V
1.5V
V
CC
1.5V
r
≤ 6.0ns, Z
V
OM
t
RPHL
3V
0
V
V
3V
0
V
V
CC
OL
CC
OL
O
S1 CLOSED
S2 OPEN
S3 = -1.5V
S1 CLOSED
S2 OPEN
S3 = -1.5V
= 50Ω.
3.0V
0
V
0
CC