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ADM1487EARZ-REEL7 View Datasheet(PDF) - Analog Devices

Part Name
Description
Manufacturer
ADM1487EARZ-REEL7 Datasheet PDF : 16 Pages
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ADM485E/ADM487E/ADM1487E
SPECIFICATIONS
VCC = 5 V ± 10%, TA = TMIN to TMAX, unless otherwise noted.
Table 2. ADM485E/ADM487E/ADM1487E
Parameter
Symbol Min Typ Max Unit Test Conditions/Comments
DRIVER
Differential Outputs
Differential Output Voltage (No Load)
VOD1
Differential Output Voltage (with Load) VOD2
2
1.5
5
V
V
RL = 50 Ω (RS-422)
5
V
RL = 27 Ω (RS-485) (see Figure 18)
Δ |VOD| for Complementary Output States
0.2 V
RL = 27 Ω or 50 Ω (see Figure 18)
Common-Mode Output Voltage
VOC
Δ |VOC| for Complementary Output States
Logic Inputs
3
V
0.2 V
RL = 27 Ω or 50 Ω (see Figure 18)
RL = 27 Ω or 50 Ω (see Figure 18)
Input High Voltage
VIH
2.0
V
DE, DI, RE
Input Low Voltage
VIL
0.8 V
DE, DI, RE
Logic Input Current1
IIN1
±2 μA DE, DI, RE
RECEIVER
Input Current (A, B)
IIN2
−0.8
1.0 mA
mA
0.25 mA
DE = 0 V, VIN = 12 V
VCC = 0 V or 5.25 V, VIN = −7 V (ADM485E)
DE = 0 V, VIN = 12 V
−0.2
mA VCC = 0 V or 5.25 V, VIN = −7 V
(ADM487E/ADM1487E)
Differential Inputs
Differential Input Threshold Voltage
Input Hysteresis
Receiver Output Logic
VTH
ΔVTH
−0.2
70
+0.2 V
mV
−7 V < VCM < +12 V
VCM = 0 V
Output Voltage High
VOH
3.5
Output Voltage Low
VOL
Three-State Output Leakage Current
IOZR
V
IOUT = −4 mA, VID = +200 mV
0.4 V
IOUT = +4 mA, VID = −200 mV
±1 μA 0.4 V < VO < 2.4 V
Receiver Input Resistance
RIN
12
kΩ −7 V < VCM < +12 V (ADM485E)
48
kΩ −7 V < VCM < +12 V (ADM487E/ADM1487E)
POWER SUPPLY
No Load Supply Current
ICC
500 900 μA RE = 0 V or VCC, DE = VCC (ADM485E)
300 500 μA RE = 0 V or VCC, DE = 0 V (ADM485E)
300 500 μA RE = 0 V or VCC, DE = VCC (ADM1487E)
230 400 μA RE = 0 V or VCC, DE = 0 V (ADM1487E)
250 400 μA RE = 0 V or VCC, DE = VCC (ADM487E)
120 250 μA RE = 0 V, DE = 0 V (ADM487E)
Supply Current in Shutdown
ISHDN
0.5 10 μA DE = 0 V, RE = VCC (ADM487E)
Driver Short-Circuit Current, VO High
Driver Short-Circuit Current, VO Low
Receiver Short-Circuit Current
IOSD1
35
IOSD2
35
IOSR
7
250 mA −7 V ≤ VO ≤ +12 V, applies to peak current
250 mA −7 V ≤ VO ≤ +12 V, applies to peak current
95
mA 0 V ≤ VO ≤ VCC
ESD PROTECTION
A, B
±15
kV Human body model
1 Supply voltage is 5 V ± 5%.
Rev. B | Page 3 of 16
 

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