ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
SPECIFICATIONS
VCC = 3.3 V 0.3 V, TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Min
Typ
Max
Unit Test Conditions/Comments
DRIVER
Differential Output Voltage (VOD
)
2.0
1.5
1.5
V
V
V
V
V
V
RL = 100 Ω (RS-422), VCC = 3.3 V 5% (see Figure 7)
RL = 54 Ω (RS-485) (see Figure 7)
RL = 60 Ω (RS-485), VCC = 3.3 V (see Figure 8)
RL = 54 Ω or 100 Ω (see Figure 7)
RL = 54 Ω or 100 Ω (see Figure 7)
RL = 54 Ω or 100 Ω (see Figure 7)
Δ |VOD| for Complementary Output States1
Common-Mode Output Voltage (VOC
Δ |VOC| for Common-Mode Output Voltage1
0.2
3
0.2
)
DRIVER INPUT LOGIC
CMOS Input Logic Threshold Low (VIH)
CMOS Input Logic Threshold High (VIL)
0.8
V
DE, DI, RE
2.0
V
DE, DI, RE
CMOS Logic Input Current (IIN1
)
2
μA
mA
mA
μA
DE, DI, RE
Input Current—A, B (IIN2
)
1.0
−0.8
VIN = 12 V, DE = 0 V, VCC = 0 V or 3.6 V
VIN = −7 V, DE = 0 V, VCC = 0 V or 3.6 V
VIN = 12 V, DE = 0 V, RE = 0 V, VCC = 0 V or 3.6 V,
ADM3491 only
Output Leakage—Y, Z (IO)
0.1
−0.1
0.01
−0.01
μA
μA
μA
VIN = −7 V, DE = 0 V, RE = 0 V, VCC = 0 V or 3.6 V,
ADM3491 only
VIN = 12 V, DE = 0 V, RE = VCC, VCC = 0 V or 3.6 V,
ADM3491 only
Output Leakage (Y, Z) in Shutdown Mode (IO)
VIN = −7 V, DE = 0 V, RE = VCC, VCC = 0 V or 3.6 V,
ADM3491 only
RECEIVER
Differential Input Threshold Voltage (VTH
Input Hysteresis (Δ VTH
CMOS Output Voltage High (VOH
CMOS Output Voltage Low (VOL
)
−0.2
+0.2
V
mV
V
V
μA
kΩ
−7 V < VCM < +12 V
VCM = 0 V
IOUT = −1.5 mA, VID = 200 mV (see Figure 9)
IOUT = 2.5 mA, VID = 200 mV (see Figure 9)
VCC = 3.6 V, 0 V ≤ VOUT ≤ VCC
−7 V < VCM < +12 V
)
50
)
VCC – 0.4
)
0.4
1
Three-State Output Leakage Current (IOZR
Input Resistance (RIN)
)
12
POWER SUPPLY CURRENT
Supply Current (ICC
)
1.1
2.2
mA
DE = VCC, RE = 0 V or VCC, no load, DI = 0 V or VCC
DE = 0 V, RE = 0 V, no load, DI = 0 V or VCC
DE = 0 V, RE = VCC, DI = VCC or 0 V
VOUT = −7 V
0.95
0.002
1.9
1
mA
μA
Supply Current in Shutdown Mode (ISHDN
Driver Short-Circuit Output Current (IOSD
)
)
−250
250
60
mA
mA
mA
V
OUT = 12 V
Receiver Short-Circuit Output Current (IOSR
)
8
0 V < VRO < VCC
1ΔVOD and ΔVOC are the changes in VOD and VOC, respectively, when DI input changes state.
Rev. B | Page 4 of 20
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