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ISO3088DWR Datasheet(PDF) 4 Page - Texas Instruments

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Part # ISO3088DWR
Description  ISOLATED 5-V FULL AND HALF-DUPLEX RS-485 TRANSCEIVERS
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

ISO3088DWR Datasheet(HTML) 4 Page - Texas Instruments

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0 or
I I
VI
V
CC1
DE
A
B
VOB
VOA
VOD
IOA
IOB
GND1
GND1
GND2
V
CC1
GND2
375 W
60 W
+
V
OD
D
DE
GND 2
V
CC2
A
B
0 V or 3 V
375 W
–7 V to 12 V
ISO3080, ISO3086
ISO3082, ISO3088
SLOS581D – MAY 2008 – REVISED JANUARY 2011
www.ti.com
RECEIVER ELECTRICAL CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIT(+)
Positive-going input threshold voltage
IO = –8 mA
–85
–10
mV
VIT(–)
Negative-going input threshold voltage
IO = 8 mA
–200
–115
mV
Vhys
Hysteresis voltage (VIT+ – VIT–)
30
mV
3.3-V VCC1
VCC1-0.4
3.1
VID = 200 mV, IO = –8 mA,
VOH
High-level output voltage
V
See Figure 7
5-V VCC1
4
4.8
3.3-V VCC1
0.15
0.4
VID = –200 mV, IO = 8 mA,
VOL
Low-level output voltage
V
See Figure 7
5-V VCC1
0.15
0.4
IO(Z)
High-impedance state output current
VI = –7 to 12 V, Other input = 0 V
–1
1
mA
VA or VB = 12 V
0.04
0.1
VA or VB = 12 V, VCC = 0
0.06
0.13
Other input
II
Bus input current
mA
at 0 V
VA or VB = –7 V
–0.1
–0.04
VA or VB = –7 V, VCC = 0
–0.05
–0.03
IIH
High-level input current, RE
VIH = 2 V
–10
10
mA
IIL
Low-level input current, RE
VIL = 0.8 V
–10
10
mA
RID
Differential input resistance
A, B
48
k
Test input signal is a 1.5 MHz sine wave with 1Vpp
CD
Differential input capacitance
7
pF
amplitude. CD is measured across A and B.
RECEIVER SWITCHING CHARACTERISTICS
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH, tPHL
Propagation delay
90
125
ns
PWD(1)
Pulse width distortion |tPHL – tPLH|
See Figure 8
4
12
tr, tf
Output signal rise and fall time
1
ns
tPHZ,
Propagation delay, high-level-to-high-impedance output
See Figure 9, DE at 0 V
22
ns
tPZH
Propagation delay, high-impedance-to-high-level output
tPZL,
Propagation delay, high-impedance-to-low-level output
See Figure 10, DE at 0 V
22
ns
tPLZ
Propagation delay, low-level-to-high-impedance output
(1)
Also known as pulse skew.
PARAMETER MEASUREMENT INFORMATION
Figure 1. Driver VOD Test and Current Definitions
Figure 2. Driver VOD With Common-Mode Loading
Test Circuit
Note: Unless otherwise stated, test circuits are shown for half-duplex devices, ISO3082 & ISO3088. For
full-duplex devices, driver output pins are Y and Z.
4
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Copyright © 2008–2011, Texas Instruments Incorporated
Product Folder Link(s): ISO3080, ISO3086 ISO3082, ISO3088


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