Datasheet

–2– REV. 0
ADM483E–SPECIFICATIONS
Parameter Min Typ Max Units Test Conditions/Comments
DRIVER
Differential Output Voltage, V
OD
5.0 V V
CC
= 5.25 V. R = ∞, Figure 1
2.0 5.0 V R = 50 Ω (RS-422), Figure 1
1.5 5.0 V R = 27 Ω (RS-485), Figure 1
1.5 5.0 V V
TST
= –7 V to +12 V, Figure 2, V
CC
≥ 4.75 V
∆|V
OD
| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω, Figure 1
Common-Mode Output Voltage V
OC
3 V R = 27 Ω or 50 Ω, Figure 1
∆|V
OC
| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω
Output Short Circuit Current (V
OUT
= High) 250 mA –7 V ≤ V
O
≤ +12 V
Output Short Circuit Current (V
OUT
= Low) 250 mA –7 V ≤ V
O
≤ +12 V
CMOS Input Logic Threshold Low, V
INL
1.4 0.8 V
CMOS Input Logic Threshold High, V
INH
2.0 1.4 V
Logic Input Current (DE, DI) ±1.0 µA
RECEIVER
Differential Input Threshold Voltage, V
TH
–0.2 +0.2 V –7 V ≤ V
CM
≤ +12 V
Input Voltage Hysteresis, ∆V
TH
70 mV V
CM
= 0 V
Input Resistance 12 kΩ –7 V ≤ V
CM
≤ +12 V
Input Current (A, B) +1 mA V
IN
= 12 V
–0.8 mA V
IN
= –7 V
Logic Enable Input Current (
RE) ±1 µA
CMOS Output Voltage Low, V
OL
0.4 V I
OUT
= +4.0 mA
CMOS Output Voltage High, V
OH
4.0 V I
OUT
= –4.0 mA
Short Circuit Output Current 7 85 mA V
OUT
= GND or V
CC
Three-State Output Leakage Current ±1.0 µA 0.4 V ≤ V
OUT
≤ +2.4 V
POWER SUPPLY CURRENT Outputs Unloaded, Receivers Enabled
I
CC
(ADM483E) 36 60 µA DE = 0 V (Disabled) RE = 0 V
270 360 µA DE = 5 V (Enabled) =
RE = 0 V
Supply Current in Shutdown 0.1 10 µA DE = 0 V, RE = V
CC
ESD/EFT IMMUNITY
ESD Protection ±15 kV HBM Air Discharge. A, B Pins
±3.5 kV HBM 3015.7 Contact Discharge. All Pins
EFT Protection ±2 kV IEC1000-4-4, A, B Pins
EMI Immunity 10 V/m IEC1000-4-3
Specifications subject to change without notice.
TIMING SPECIFICATIONS
Parameter Min Typ Max Units Test Conditions/Comments
DRIVER
Propagation Delay Input to Output T
PLH
, T
PHL
250 2000 ns R
L
Diff = 54 Ω C
L1
= C
L2
= 100 pF, Figure 5
Driver O/P to
O/P T
SKEW
100 800 ns R
L
Diff = 54 Ω C
L1
= C
L2
= 100 pF, Figure 5
Driver Rise/Fall Time T
R
, T
F
250 2000 ns R
L
Diff = 54 Ω C
L1
= C
L2
= 100 pF, Figure 5
Driver Enable to Output Valid 250 2000 ns R
L
= 500 Ω, C
L
= 100 pF, Figure 3
Driver Disable Timing 300 3000 ns R
L
= 500 Ω, C
L
= 15 pF, Figure 3
RECEIVER
Propagation Delay Input to Output T
PLH
, T
PHL
250 2000 ns C
L
= 15 pF, Figure 5
Skew |T
PLH
–T
PHL
| 200 ns
Receiver Enable T
EN1
10 50 ns R
L
= 1 kΩ, C
L
= 15 pF, Figure 4
Receiver Disable T
EN2
10 50 ns R
L
= 1 kΩ, C
L
= 15 pF, Figure 4
SHUTDOWN
Time to Shutdown 50 200 600 ns
Driver Enable from Shutdown 2000 ns R
L
= 500 Ω, C
L
= 100 pF, Figure 3
Receiver Enable from Shutdown 2500 ns R
L
= 1 kΩ, C
L
= 15 pF, Figure 4
Specifications subject to change without notice.
(V
CC
= +5 V 6 10%. All specifications T
MIN
to T
MAX
unless otherwise noted)
(V
CC
= +5 V 6 10%. All specifications T
MIN
to T
MAX
unless otherwise noted.)