ADM2486BRW Просмотр технического описания (PDF) - Analog Devices
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ADM2486BRW Datasheet PDF : 20 Pages
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ADM2486
SPECIFICATIONS
2.7 V ≤ VDD1 ≤ 5.5 V, 4.75 V ≤ VDD2 ≤ 5.25 V, TA = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
DRIVER
Differential Outputs
Differential Output Voltage, VOD
Min
Typ
2.1
2.1
2.1
Max
Unit
5
V
5
V
5
V
5
V
∆ |VOD| for Complementary Output States
Common-Mode Output Voltage, VOC
∆ |VOC| for Complementary Output States
Output Short-Circuit Current, VOUT = High
Output Short-Circuit Current, VOUT = Low
Bus Enable Output
Output High Voltage
Output Low Voltage
60
60
VDD2 − 0.1
VDD2 − 0.3
VDD2 − 0.4
Logic Inputs
Input High Voltage
Input Low Voltage
CMOS Logic Input Current (TxD, RTS, RE, PV)
RECEIVER
Differential Inputs
Differential Input Threshold Voltage, VTH
Input Hysteresis
Input Resistance (A, B)
Input Current (A, B)
0.7 VDD1
−10
−200
20
VDD2 − 0.1
VDD2 − 0.2
0.1
0.2
0.01
70
30
RxD Logic Output
Output High Voltage
Output Low Voltage
Output Short-Circuit Current
Three-State Output Leakage Current
VDD1 − 0.1
VDD1 − 0.4
VDD1 − 0.2
0.2
7
0.2
V
3
V
0.2
V
200
mA
200
mA
V
V
V
0.1
V
0.3
V
0.4
V
V
0.25 VDD1 V
10
µA
200
mV
mV
kΩ
0.6
mA
−0.35
mA
V
V
0.1
V
0.4
V
85
mA
±1
µA
Test Conditions/Comments
R = ∞, see Figure 3
R = 50 Ω (RS-422), see Figure 3
R = 27 Ω (RS-485), see Figure 3
VTST = −7 V to 12 V, VDD1 ≥ 4.7,
see Figure 4
R = 27 Ω or 50 Ω, see Figure 3
R = 27 Ω or 50 Ω, see Figure 3
R = 27 Ω or 50 Ω, see Figure 3
−7 V ≤ VOUT ≤ +12 V
−7 V ≤ VOUT ≤ +12 V
IODE = 20 µA
IODE = 1.6 mA
IODE = 4 mA
IODE = −20 µA
IODE = −1.6 mA
IODE = −4 mA
TxD, RTS, RE, PV
TxD, RTS, RE, PV
TxD, RTS, RE, PV = VDD1 or 0 V
−7 V ≤ VCM ≤ +12V
−7 V ≤ VCM ≤ +12V
−7 V ≤ VCM ≤ +12V
VIN = +12 V
VIN = −7 V
IOUT = 20 µA, VA − VB = 0.2 V
IOUT = 4 mA, VA − VB = 0.2 V
IOUT = −20 µA, VA − VB = −0.2 V
IOUT = −4 mA, VA − VB = −0.2 V
VOUT = GND or VCC
0.4 V ≤ VOUT ≤ 2.4 V
Rev. C | Page 3 of 20
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