ADM3485E
SPECIFICATIONS
V
CC
= +3.3 V ± 0.3 V. All specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 1.
Parameter
DRIVER
Differential Outputs
Differential Output Voltage
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
V
OD
2.0
1.5
1.5
0.2
3
0.2
–250
250
∆|V
OD
| for Complementary Output States
Common-Mode Output Voltage
∆|V
OC
| for Complementary Output States
Short-Circuit Output Current
Logic Inputs
Input Low Voltage
Input High Voltage
Logic Input Current
RECEIVER
Differential Inputs
Differential Input Threshold Voltage
Input Voltage Hysteresis
Input Resistance (A, B)
Input Current (A, B)
RO Logic Output
Output Voltage High
Output Voltage Low
Short-Circuit Output Current
Tristate Output Leakage Current
POWER SUPPLY CURRENT
Voltage Range
Supply Current
∆V
OD
V
OC
∆V
OC
I
OSD
V
V
V
V
V
V
mA
mA
V
V
µA
R
L
= 100 Ω (RS-422) (see Figure 3)
R
L
= 54 Ω (RS-485) (see Figure 3)
R
L
= 60 Ω (RS-485) (see Figure 4)
R
L
= 54 Ω or 100 Ω (see Figure 3)
R
L
= 54 Ω or 100 Ω ( see Figure 3)
R
L
= 54 Ω or 100 Ω (see Figure 3)
V
OUT
= –7 V
V
OUT
= 12 V
DE, DI, RE
DE, DI, RE
DE, DI, RE
V
IL
V
IH
I
IN1
0.8
2.0
±2
V
TH
∆V
TH
R
IN
I
IN2
–0.2
50
12
+0.2
1.0
–0.8
V
mV
kΩ
mA
mA
V
V
mA
µA
V
mA
mA
µA
kV
kV
–7 V < V
CM
< +12 V
V
CM
= 0 V
–7 V < V
CM
< +12 V
DE = 0 V, V
CC
= 0 V or 3.6 V, V
IN
= 12 V
DE = 0 V, V
CC
= 0 V or 3.6 V, V
IN
= –7 V
I
OUT
= –1.5 mA, V
ID
= 200 mV (see Figure 5)
I
OUT
= 2.5 mA, V
ID
= 200 mV (see Figure 5)
0 V < V
RO
< V
CC
V
CC
= 3.6 V, 0 V < V
OUT
< V
CC
V
OH
V
OL
I
OSR
I
OZR
V
CC
I
CC
V
CC
– 0.4 V
±8
0.4
±60
±1
3.6
2.2
1.9
1
3.0
1.1
0.95
Shutdown Current
ESD PROTECTION
A, B Pins
All Pins Except A, B
1
I
SHDN
0.002
±15
±4
No load, DI = 0 V or V
CC
, DE = V
CC
,
RE = 0 V or V
CC
No load, DI = 0 V or V
CC
, DE = 0 V,
RE = 0 V
DE = 0 V, RE = V
CC
, DI = 0 V or V
CC
Human body model
Human body model
Δ|V
OD
| and Δ|V
OC
| are the changes in V
OD
and V
OC
, respectively, when DI input changes state.
Rev. D | Page 3 of 16
AD [ ANALOG DEVICES ]
