MC75172B Datasheet, PDF (11/12 Pages) ON Semiconductor – QUAD EIA-485 LINE DRIVERS

MC75172B MC75174B
Comparing System Requirements
Characteristic
Symbol
EIA–485
EIA–422–A
V.11 and X.27
GENERATOR (DRIVER)
Output Impedance (Note 1)
Zout
Not Specified
t 100 Ω
50 10 100 Ω
Open Circuit Voltage
Differential
Single–Ended
Loaded Differential Voltage
Differential Voltage Balance
VOCD
VOCS
VOD
∆VOD
t1.5 to 6.0 V
6.0 V
1.5 to 5.0 V, w/54 Ω load
t 200 mV
p 6.0 V
p 6.0 V
q q 2.0 V or 0.5
VOCD, w/100 Ω load
p 400 mV
p 6.0 V, w/3.9 kΩ, Load
p 6.0 V, w/3.9 kΩ, Load
q q 2.0 V or 0.5 VOCD,
w/100 Ω load
t 400 mV
Output Common Mode Range
Offset Voltage
Offset Voltage Balance
Short Circuit Current
Leakage Current (VCC = 0)
Output Rise/Fall Time (Note 2)
VCM
VOS
∆VOS
IOS
IOLK
tr, tf
–7.0 to +12 V
t t –1.0 VOS 3.0 V
t 200 mV
p 250 mA for –7.0 to
12 V
Not Specified
p 0.3 TB, w/54 Ω/1150 pF
load
Not Specified
p 3.0 V
p 400 mV
p 150 mA to ground
p 100 µA to –0.25 V
thru 6.0 V
p p 0.1 TB or 20 ns,
w/100 Ω load
Not Specified
p 3.0 V
t 400 mV
p 150 mA to ground
p 100 µA to ± 0.25 V
p _p 0.1 TB _{or 20 ns,}
w/100 Ω load
RECEIVER
Input Sensitivity
Input Bias Voltage
Vth
Vbias
± 200 mV
p 3.0 V
± 200 mV
p 3.0 V
± 300 mV
p 3.0 V
Input Common Mode Range
Dynamic Input Impedance
Vcm
Rin
–7.0 to 12 V
Spec number of U.L.
–7.0 to 7.0 V
q 4 kΩ
–7.0 to 7.0 V
q 4 kΩ
NOTES: 1. Compliance with V.11 and X.27 (Blue book) output impedance requires external resistors in series with the outputs of the MC75172B and MC75174B.
2. TB = Bit time.
Additional Information
Copies of the EIA Recommendations (EIA–485 and EIA–422–A) can be obtained from the Electronics Industries Association,
Washington, D.C. (202–457–4966). Copies of the CCITT Recommendations (V.11 and X.27) can be obtained from the United
States Department of Commerce, Springfield, VA (703–487–4600).
MOTOROLA ANALOG IC DEVICE DATA
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