ADM1486
Rev. A | Page 3 of 16
SPECIFICATIONS
V
CC
= 5 V ±5%. All specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
DRIVER
Differential Output Voltage, V
OD
5.0 V R = Infinity, see Figure 3
2.1 5.0 V V
CC
= 5 V, R = 50 Ω (RS-422), see Figure 3
2.1 5.0 V R = 27 Ω (RS-485), see Figure 3
V
OD3
2.1 5.0 V V
TST
= −7 V to +12 V, see Figure 4
∆| V
OD
| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω, see Figure 3
Common-Mode Output Voltage V
OC
3.0 V R = 27 Ω or 50 Ω, see Figure 3
∆| V
OC
| for Complementary Output States 0.2 V R = 27 Ω or 50 Ω
Output Short-Circuit Current (V
OUT
= High) 60 200 mA −7 V ≤ V
O
≤ +12 V
Output Short-Circuit Current (V
OUT
= Low) 60 200 mA −7 V ≤ V
O
≤ +12 V
CMOS Input Logic Threshold Low, V
INL
0.8 V
CMOS Input Logic Threshold High, V
INH
2.0 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 20 30 kΩ −7 V ≤ V
CM
≤ +12 V
Input Current (A, B) 0.6 mA V
IN
= +12 V
−0.35 mA V
IN
= −7 V
Logic Enable Input Current (RE)
±1.0 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
I
CC
(Outputs Enabled) 1.2 2.0 mA Outputs unloaded, digital inputs = GND or V
CC
I
CC
(Outputs Disabled) 0.8 1.5 mA Outputs unloaded, digital inputs = GND or V
CC
