ADM1485ARZ Analog Devices Inc, ADM1485ARZ Datasheet - Page 4

• Manufacturer Part Number: ADM1485ARZ
• Description: IC TX/RX RS-485 HS 5V 8SOIC
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of ADM1485ARZ

• Number Of Drivers/receivers: 1/1
• Protocol: RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Device Type: Differential Line Transceiver
• Ic Interface Type: RS485
• No. Of Drivers: 2
• Supply Voltage Range: 4.75V To 5.25V
• Driver Case Style: SOIC
• No. Of Pins: 8
• Data Rate: 30Mbps
• Interface Circuit Standard 1: RS-422
• Number Of Receivers: 1
• Number Of Transmitters: 1
• Number Of Transceivers: 1
• Data Transmission Topology: Multipoint
• Receiver Signal Type: Differential
• Transmitter Signal Type: Differential
• Single Supply Voltage (typ): 5V
• Single Supply Voltage (min): 4.75V
• Single Supply Voltage (max): 5.25V
• Dual Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Supply Current: 2.2mA
• Power Supply Requirement: Single
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC N
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Test Circuits
Switching Characteristics
ADM1485
–V
3V
0V
V
0V
Figure 1. Driver Propagation Delay, Rise/Fall Timing
B
A
A, B
A, B
O
O
V
DE
O
10% POINT
Test Circuit 1. Driver Voltage Measurement
Test Circuit 2. Driver Voltage Measurement
1/2VO
Test Circuit 3. Driver Propagation Delay
Figure 2. Driver Enable/Disable Timing
90% POINT
1.5V
t
t
ZH
ZL
t
PLH
1.5V
t
R
2.3V
2.3V
t
SKEW
A
B
=
t
PLH
V
OD3
–
V
t
PHL
OD
R
LDIFF
60
375
375
t
t
LZ
HZ
1.5V
1.5V
V
V
OL
OH
R
R
C
C
L1
L2
t
+ 0.5V
– 0.5V
V
PHL
TST
V
90% POINT
t
3V
0V
OC
F
10% POINT
V
V
OL
OH
0V
–4–
A, B
RO
RE
R
R
0V
0V OR 3V
Test Circuit 5. Receiver Propagation Delay
Figure 4. Receiver Enable/Disable Timing
DE IN
RE IN
+1.5V
–1.5V
Test Circuit 6. Receiver Enable/Disable
Figure 3. Receiver Propagation Delay
Test Circuit 4. Driver Enable/Disable
1.5V
t
t
t
PLH
ZH
ZL
S1
0V
A
B
1.5V
1.5V
1.5V
DE
RE
t
SKEW
RE
A
B
O/P HIGH
O/P LOW
=
S1
t
PLH
C
L
–
C
C
t
L
PHL
L
V
OUT
t
R
t
1.5V
HZ
LZ
L
t
V
PHL
0V
V
OUT
OUT
R
V
V
L
OL
OH
1.5V
+ 0.5V
V
– 0.5V
CC
S2
V
3V
0V
CC
S2
V
V
REV. E
OL
OH
V
V
OH
OL