DS16F95A Datasheet, PDF (3/10 Pages) National Semiconductor (TI) – TIA/EIA-485-A (RS-485) Extended Temperature Differential Bus Transceiver

Driver Switching Characteristics (Note 2)
Over recommended supply voltage and operating temperature ranges, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
t_DD
Differential Output Delay Time
R_L = 60Ω, Figure 3
t_TD
Differential Output Transition Time
t_ZH
Output Enable Time to High Level
R_L = 110Ω, Figure 4
t_ZL
Output Enable Time to Low Level
R_L = 110Ω, Figure 5
t_HZ
Output Disable Time from High Level
R_L = 110Ω, Figure 4
t_LZ
Output Disable Time from Low Level
R_L = 110Ω, Figure 5
t_LZL
Output Disable Time from Low Level with Load Load per Figure 4,
Resistor to GND
Timing per Figure 5
8.0
15
45
8.0
15
30
25
50
25
50
20
80
20
80
300
t_SKEW
Skew (Pulse Width Distortion)
R_L = 60Ω, Figure 3
1.0
12
Units
ns
ns
ns
ns
ns
ns
ns
ns
Receiver Electrical Characteristics (Notes 2, 3)
Over recommended supply voltage and operating temperature ranges, unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max
V_TH
Differential Input High
V_O = 2.7V, I_O = −0.4 mA
0.2
Threshold Voltage
V_TL
Differential Input Low
Threshold Voltage (Note 6)
V_O = 0.5V, I_O = 8.0 mA
−0.2
V_T+−V_T−
V_IH
V_IL
V_IC
I_IH
I_IL
V_OH
V_OL
I_OS
I_OZ
I_I
R_I
Hysteresis (Note 7)
Enable Input Voltage HIGH
V_CM = 0V
RE
Enable Input Voltage LOW
Enable Input Clamp Voltage
Input Current HIGH
Input Current LOW
Output Voltage HIGH (RO)
Output Voltage LOW (RO)
Short Circuit Output Current (RO)
High Impedance State Output (RO)
Line Input Current (Note 8)
Input Resistance
I_I = −18 mA
V_IH = 2.7V
V_IL = 0.4V
V_ID = 200 mV, I_OH = −400 μA, Figure 2
V_ID = −200 mV,
I_OL = 8.0 mA
Figure 2
I_OL = 16 mA
V_O = 0V, (Note 9)
V_O = 0.4V to 2.4V
A or B,
Other Input = 0V
V_I = +12V
V_I = −7.0V
A or B
DE = 0.4V
35 50
2.0
0.8
-0.8 -1.3
1
20
-3 -50
2.5 3.5
0.3 0.45
0.4 0.50
-15 -46 -85
0.2 ±20
0.57 1.5
-0.43 -0.8
12 18 22
Units
V
V
mV
V
V
V
μA
μA
V
V
mA
μA
mA
kΩ
3
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