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ADM4850ARMZ датащи(PDF) 3 Page - Analog Devices

номер детали ADM4850ARMZ
подробное описание детали  5 V, Slew Rate Limited, Half-Duplex and Full Duplex RS-485/RS-422 Transceivers
PDF  16 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

ADM4850ARMZ датащи(HTML) 3 Page - Analog Devices

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Data Sheet
ADM4850 to ADM4857
Rev. F | Page 3 of 16
SPECIFICATIONS
VCC = 5 V ± 5%, TA = TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Differential Output Voltage
V
OD
V
CC
V
R = ∞, see Figure 191
2.0
5
V
R = 50 Ω (RS-422), see Figure 19
1.5
5
V
R = 27 Ω (RS-485), see Figure 19
Differential Output Voltage over Common-
Mode Range
|V
OD3|
1.5
5
V
V
TST = −7 V to +12 V, see Figure 20
Δ|V
OD| for Complementary Output States
0.2
V
R = 27 Ω or 50 Ω, see Figure 19
Common-Mode Output Voltage
V
OC
3
V
R = 27 Ω or 50 Ω, see Figure 19
Δ|V
OC| for Complementary Output States
0.2
V
R = 27 Ω or 50 Ω, see Figure 19
Output Short-Circuit Current
−7 V < V
OUT < +12 V
V
OUT = High
−200
+200
mA
V
OUT = Low
−200
+200
mA
DRIVER INPUT LOGIC
CMOS Input Logic Threshold
Low
0.8
V
High
2.0
V
CMOS Logic Input Current (DI)
±1
µA
DE Input Resistance to GND
220
kΩ
RECEIVER
Differential Input Threshold Voltage
V
TH
−200
−125
−30
mV
−7 V < V
OC < +12 V
Input Hysteresis
20
mV
−7 V < V
OC < +12 V
Input Resistance (A, B)
96
150
kΩ
−7 V < V
OC < +12 V
Input Current (A, B)
0.125
mA
V
IN = 12 V
−0.1
mA
V
IN = −7 V
CMOS Logic Input Current (RE)
±1
µA
CMOS Output Voltage
Low
0.4
V
I
OUT = 4 mA
High
4.0
V
I
OUT = −4 mA
Output Short-Circuit Current
7
85
mA
V
OUT = GND or VCC
Three-State Output Leakage Current
±2
µA
0.4 V ≤ V
OUT ≤ 2.4 V
POWER SUPPLY CURRENT
115 kbps Options (ADM4850/ADM4854)
5
µA
DE = 0 V, RE = VCC (shutdown)
36
60
µA
DE = 0 V, RE = 0 V
100
160
µA
DE = V
CC
500 kbps Options (ADM4855)
5
µA
DE = 0 V, RE = VCC (shutdown)
80
120
µA
DE = 0 V, RE = 0 V
120
200
µA
DE = V
CC
2.5 Mbps Options (ADM4852/ADM4856)
5
µA
DE = 0 V, RE = VCC (shutdown)
250
400
µA
DE = 0 V, RE = 0 V
320
500
µA
DE = V
CC
10 Mbps Options (ADM4853/ADM4857)
5
µA
DE = 0 V, RE = VCC (shutdown)
250
400
µA
DE = 0 V, RE = 0 V
320
500
µA
DE = V
CC
1 Guaranteed by design.



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