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ADM2483BRWZ-REEL データシート(PDF) 3 Page - Analog Devices

部品番号 ADM2483BRWZ-REEL
部品情報  Half-Duplex, iCoupler짰 Isolated RS-485 Transceiver
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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ADM2483BRWZ-REEL データシート(HTML) 3 Page - Analog Devices

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ADM2483
Rev. B | Page 3 of 20
SPECIFICATIONS
2.7 ≤ VDD1 ≤ 5.5 V, 4.75 V ≤ VDD2 ≤ 5.25 V, TA = TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Differential Outputs
Differential Output Voltage, VOD
5
V
R = ∞, see Figure 3
2.0
5
V
R = 50 Ω (RS-422), see Figure 3
1.5
5
V
R = 27 Ω (RS-485), see Figure 3
1.5
5
V
VTST = −7 V to +12 V, VDD1 ≥ 4.75,
see Figure 4
∆ |VOD| for Complementary Output States
0.2
V
R = 27 Ω or 50 Ω, see Figure 3
Common-Mode Output Voltage, VOC
3
V
R = 27 Ω or 50 Ω, see Figure 3
∆ |VOC| for Complementary Output States
0.2
V
R = 27 Ω or 50 Ω, see Figure 3
Output Short-Circuit Current, VOUT = High
−250
+250
mA
−7 V ≤ VOUT ≤ +12 V
Output Short-Circuit Current, VOUT = Low
−250
+250
mA
−7 V ≤ VOUT ≤ +12 V
Logic Inputs
Input High Voltage
0.7 VDD1
V
TxD, DE, RE, PV
Input Low Voltage
0.25 VDD1
V
TxD, DE, RE, PV
CMOS Logic Input Current (TxD, DE, RE, PV)
−10
+0.01
+10
µA
TxD, DE, RE, PV = VDD1 or 0 V
RECEIVER
Differential Inputs
Differential Input Threshold Voltage, VTH
−200
−125
−30
mV
−7 V ≤ VCM ≤ +12 V
Input Hysteresis
20
mV
−7 V ≤ VCM ≤ +12 V
Input Resistance (A, B)
96
150
kΩ
−7 V ≤ VCM ≤ +12 V
Input Current (A, B)
0.125
mA
VIN = +12 V
−0.1
mA
VIN = −7 V
RxD Logic Output
Output High Voltage
VDD1 − 0.1
V
IOUT = 20 µA, VA − VB = 0.2 V
VDD1 − 0.4 VDD1 − 0.2
V
IOUT = 4 mA, VA − VB = 0.2 V
Output Low Voltage
0.1
V
IOUT = −20 µA, VA − VB = −0.2 V
0.4
V
IOUT = −4 mA, VA − VB = −0.2 V
Output Short-Circuit Current
7
85
mA
VOUT = GND or VCC
Three-State Output Leakage Current
±1
µA
0.4 V ≤ VOUT ≤ 2.4 V
POWER SUPPLY CURRENT
Logic Side
2.5
mA
4.5 V ≤ VDD1 ≤ 5.5 V, outputs unloaded,
RE = 0 V
1.3
mA
2.7 V ≤ VDD1 ≤ 3.3 V, outputs unloaded,
RE = 0 V
Bus Side
2.0
mA
Outputs unloaded, DE = 5 V
1.7
mA
Outputs unloaded, DE = 0 V
COMMON-MODE TRANSIENT IMMUNITY1
25
kV/µs
TxD = VDD1 or 0 V, VCM = 1 kV,
transient magnitude = 800 V
1 Common-mode transient immunity is the maximum common-mode voltage slew rate that can be sustained while maintaining specification-compliant operation.
VCM is the common-mode potential difference between the logic and bus sides. The transient magnitude is the range over which the common mode is slewed. The
common-mode voltage slew rates apply to both rising and falling common-mode voltage edges.


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