adm2481 Analog Devices, Inc., adm2481 Datasheet - Page 3

• Manufacturer Part Number: adm2481
• Description: Half-duplex, Icoupler Isolated Rs-485 Transceiver Adm2481
• Manufacturer: Analog Devices, Inc.

SPECIFICATIONS
3.0 V ≤ V
Table 1.
Parameter
DRIVER
RECEIVER
POWER SUPPLY CURRENT
COMMON-MODE TRANSIENT IMMUNITY
1
Common-mode transient immunity is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation.
V
common-mode voltage slew rates apply to both rising and falling common-mode voltage edges.
CM
Differential Outputs
Logic Inputs
Differential Inputs
RxD Logic Output
Logic Side
Bus Side
is the common-mode potential difference between the logic and bus sides. The transient magnitude is the range over which the common mode is slewed. The
Differential Output Voltage
Δ |V
Common-Mode Output Voltage
Δ |V
Output Short-Circuit Current,
Input High Voltage
Input Low Voltage
CMOS Logic Input Current (TxD, DE, RE)
Differential Input Threshold Voltage
Input Hysteresis
Input Resistance (A, B)
Input Current (A, B)
Output High Voltage
Output Low Voltage
Output Short-Circuit Current
Three-State Output Leakage Current
V
V
OD
OC
OUT
OUT
DD1
| for Complementary Output States
| for Complementary Output States
= High
= Low
≤ 5.5 V, 4.75 V ≤ V
DD2
≤ 5.25 V, T
1
A
= T
Symbol
V
V
V
V
I
V
V
I
V
V
V
V
I
I
I
V
SC
I
SC
DD1
DD2
MIN
OD
OD
OD3
OC
IH
IL
TH
HYS
OH
OL
CM
to T
MAX
Rev. 0 | Page 3 of 20
Min
2.0
1.5
1.5
−250
−250
0.7 V
−10
−200
7
25
96
V
V
, unless otherwise noted.
DD1
DD1
− 0.4
− 0.1
DD1
V
Typ
+0.01
−125
20
150
DD1
− 0.2
Max
5
5
5
5
0.2
3
0.2
+250
+250
+10
−30
0.125
−0.1
0.1
0.4
85
±1
2.5
1.3
2.0
1.7
0.25 V
DD1
Unit
V
V
V
V
V
V
V
mA
mA
V
V
mV
mV
mA
mA
V
V
V
V
mA
mA
mA
mA
mA
kV/μs
μA
kΩ
μA
Test Conditions/Comments
R
R
R
V
see Figure 17
R
R
R
−7 V ≤ V
−7 V ≤ V
TxD, DE, RE
TxD, DE, RE
TxD, DE, RE = V
−7 V ≤ V
−7 V ≤ V
−7 V ≤ V
V
V
I
I
I
I
V
0.4 V ≤ V
4.5 V ≤ V
unloaded, RE = 0 V
3.0 V ≤ V
unloaded, RE = 0 V
Outputs unloaded, DE = 5 V
Outputs unloaded, DE = 0 V
TxD = V
transient magnitude = 800 V
OUT
OUT
OUT
OUT
L
L
L
TEST
L
L
L
IN
IN
OUT
= ∞, see Figure 16
= 50 Ω (RS-422), see Figure 16
= 27 Ω (RS-485), see Figure 16
= 27 Ω or 50 Ω, see Figure 16
= 27 Ω or 50 Ω, see Figure 16
= 27 Ω or 50 Ω, see Figure 16
= 12 V
= −7 V
= 20 μA, V
= 4 mA, V
= −20 μA, V
= −4 mA, V
= GND or V
= −7 V to +12 V, V
DD1
OUT
OUT
CM
CM
CM
OUT
DD1
DD1
≤ +12 V
≤ +12 V
≤ +12 V
or 0 V, V
≤ +12 V
≤ +12 V
≤ 2.4 V
≤ 5.5 V, outputs
≤ 3.6 V, outputs
A
A
− V
A
DD1
− V
A
CC
− V
− V
B
or 0 V
B
CM
= 0.2 V
B
ADM2481
= 0.2 V
B
= −0.2 V
= −0.2 V
= 1 kV,
DD1
≥ 4.75,