ISO3080_10 Datasheet, PDF (3/19 Pages) Texas Instruments – ISOLATED 5-V FULL AND HALF-DUPLEX RS-485 TRANSCEIVERS

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ISO3080, ISO3086
ISO3082, ISO3088
SLOS581C – MAY 2008 – REVISED OCTOBER 2009
DRIVER ELECTRICAL CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
| V_OD |
Δ|V_OD|
Differential output voltage
magnitude
Change in magnitude of the
differential output voltage
I_O = 0 mA, no load
R_L = 54 Ω, See Figure 1
R_L = 100 Ω (RS-422), See Figure 1
V_test from –7 V to +12 V, See Figure 2
See Figure 1 and Figure 2
V_OC(SS)
ΔV_OC(SS)
Steady-state common-mode
output voltage
Change in steady-state
common-mode output voltage
See Figure 3
V_OC(pp)
Peak-to-peak common-mode
output voltage
See Figure 3
I_I
Input current
D, DE, V_I at 0 V or V_CC1
ISO3082
ISO3088
See receiver input current
V_Y or V_Z = 12 V,
I_OZ
High-impedance state output
current
V_CC = 0 V or 5 V,
ISO3080 ^{DE = 0 V}
Other input
ISO3086
V_Y or V_Z = –7 V.
V_CC = 0 V or 5 V,
DE = 0 V
at 0 V
I_OS
CMTI
Short-circuit output current
Common-mode transient immunity
V_A or V_B at –7 V
V_A or V_B at 12 V
V_I = V_CC1 or 0 V, See Figure 12
Other input
at 0 V
MIN
3
1.5
2
1.5
–0.2
1
–0.1
–10
–1
–200
25
TYP
4.3
2.3
2.3
MAX
V_CC
UNIT
V
0 0.2 V
2.6
3
V
0.1
0.5
V
10 μA
1
μA
200 mA
50
kV/μs
DRIVER SWITCHING CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS MIN TYP MAX UNIT
t_PLH,
t_PHL
Propagation delay
ISO3080/82
ISO3086/88
0.7 1.3
ns
25
45
PWD⁽¹⁾ Pulse skew (|t_PHL – t_PLH|)
ISO3080/82
ISO3086/88
See Figure 4
20 200
ns
3 7.5
ISO3080/82
t_r, t_f
Differential output signal rise and fall time
ISO3086/88
0.5 0.9 1.5 μs
7
15 ns
t_PZH,
t_PZL
t_PHZ,
t_PLZ
Propagation delay,
high-impedance-to-high-level ouput
Propagation delay,
high-impendance-to-low-level output
Propagation delay,
high-level-to-high-impedance output
Propagaitin delya, low-level to
high-impedance output
ISO3080/82
ISO3086/88
ISO3080/82
ISO3086/88
50% Vo
90% Vo
See Figure 5
and Figure 6,
DE at 0 V
2.5
7
μs
1.8
25
55
95 225
ns
25
55
(1) Also known as pulse skew
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Product Folder Link(s): ISO3080, ISO3086 ISO3082, ISO3088