ADM488 Ver la hoja de datos (PDF) - Analog Devices
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ADM488 Datasheet PDF : 16 Pages
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ADM488/ADM489
SPECIFICATIONS
VCC = 5 V ± 10%. All specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
Min Typ Max Unit Test Conditions/Comments
DRIVER
Differential Output Voltage, VOD
Δ|VOD| for Complementary Output States
Common-Mode Output Voltage, VOC
Δ|VOC| for Complementary Output States
Output Short-Circuit Current (VOUT = High)
Output Short-Circuit Current (VOUT = Low)
CMOS Input Logic Threshold Low, VINL
CMOS Input Logic Threshold High, VINH
Logic Input Current (DE, DI)
RECEIVER
Differential Input Threshold Voltage, VTH
Input Voltage Hysteresis, Δ VTH
Input Resistance
Input Current (A, B)
Logic Enable Input Current (RE)
5.0 V
R = ∞, see Figure 6
2.0
5.0 V
VCC = 5 V, R = 50 Ω (RS-422), see Figure 6
1.5
5.0 V
R = 27 Ω (RS-485), see Figure 6
1.5
5.0 V
VTST = –7 V to +12 V, see Figure 7, VCC = 5 V ± 5%
0.2 V
R = 27 Ω or 50 Ω, see Figure 6
3
V
R = 27 Ω or 50 Ω, see Figure 6
0.2 V
R = 27 Ω or 50 Ω
250 mA −7 V ≤ VO ≤ +12 V
250 mA −7 V ≤ VO ≤ +12 V
1.4 0.8 V
2.0 1.4
V
±1.0 μA
−0.2
70
12
+0.2 V
mV
kΩ
1
mA
−0.8 mA
±1 μA
−7 V ≤ VCM ≤ +12 V
VCM = 0 V
−7 V ≤ VCM ≤ +12 V
VIN = 12 V
VIN = –7 V
CMOS Output Voltage Low, VOL
CMOS Output Voltage High, VOH
Short-Circuit Output Current
Three-State Output Leakage Current
POWER SUPPLY CURRENT
ICC
0.4 V
IOUT = +4.0 mA
4.0
V
IOUT = −4.0 mA
7
85
mA VOUT = GND or VCC
±1.0 μA 0.4 V ≤ VOUT ≤ +2.4 V
Outputs unloaded, receivers enabled
30 60 μA DE = 0 V (disabled)
37 74 μA DE = 5 V (enabled)
Rev. D | Page 3 of 16
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