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DS3696A Datasheet Preview

DS3696A Datasheet

Multipoint RS485/RS422 Transceivers

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DS3695A, DS3695AT, DS3696A
www.ti.com
SNLS353C – FEBRUARY 1996 – REVISED APRIL 2013
DS3695A/DS3695AT/DS3696A Multipoint RS485/RS422 Transceivers
Check for Samples: DS3695A, DS3695AT, DS3696A
FEATURES
1
2 Meets EIA Standard RS485 for Multipoint Bus
Transmission and is Compatible with RS-422
• 10 Ns Driver Propagation Delays (Typical)
• Single +5V Supply
7V to +12V Bus Common Mode Range
Permits ±7V Ground Difference between
Devices on the Bus
• Thermal Shutdown Protection
• High Impedance to Bus with Driver in TRI-
STATE or with Power Off, over the Entire
Common Mode Range Allows the Unused
Devices on the Bus to be Powered Down
• Combined Impedance of a Driver Output and
Receiver Input is less than One RS485 Unit
Load, Allowing up to 32 Transceivers on the
Bus
• 70 mV Typical Receiver Hysteresis
• Available in SOIC Packaging
DESCRIPTION
The DS3695A and DS3696A are high speed
differential TRI-STATE bus/line transceivers designed
to meet the requirements of EIA standard RS485 with
extended common mode range (+12V to 7V), for
multipoint data transmission. In addition they are
compatible with requirements of RS-422.
The driver and receiver outputs feature TRI-STATE
capability. The driver outputs remain in over the
entire common mode range of +12V to 7V. Bus
faults that cause excessive power dissipation within
the device trigger a thermal shutdown circuit, which
forces the driver outputs into the high impedance
state. The DS3696A provides an output pin (TS)
which reports the thermal shutdown of the device. TS
is an “open collector” pin with an internal 10 kΩ pull-
up resistor. This allows the TS outputs of several
devices to be wire OR-ed.
Both AC and DC specifications are guaranteed over
the 0°C to 70°C temperature and 4.75V to 5.25V
supply voltage range.
Connection and Logic Diagrams
Figure 1. Molded Package, Small Outline (D0008A)
Top View
Figure 2. Top View
(See Package Number D0008A)
TS was LF (Line Fault) on previous datasheets, TS goes low upon thermal shutdown.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1996–2013, Texas Instruments Incorporated




etcTI

DS3696A Datasheet Preview

DS3696A Datasheet

Multipoint RS485/RS422 Transceivers

No Preview Available !

DS3695A, DS3695AT, DS3696A
SNLS353C – FEBRUARY 1996 – REVISED APRIL 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings (1)(2)
Supply Voltage, VCC
Control Input Voltages
Driver Input Voltage
Driver Output Voltages
Receiver Input Voltages
Receiver Output Voltage
Continuous Power Dissipation @ 25°C
D0008A Package
Storage Temp. Range
Lead Temp. (Soldering 4 seconds)
7V
7V
7V
+15V/10V
+15V/10V
5.5V
630 mW (3)
65°C to +150°C
260°C
(1) “Absolute maximum ratings” are those beyond which the safety of the device cannot be verified. They are not meant to imply that the
device should be operated at these limits. The tables of “Electrical Characteristics” provide conditions for actual device operation.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3) Derate linearly at 6.5 mW/°C to 337 mW at 70°C.
Recommended Operating Conditions
Supply Voltage, VCC
Bus Voltage
Operating Free Air Temperature (TA)
Commercial (DS3695AM)
Industrial (DS3695ATM)
Commercial (DS3696AM)
Min Max Units
4.75 5.25 V
7 +12 V
0 +70 °C
40 +85 °C
0 +70 °C
Electrical Characteristics (1) (2)
0°C TA 70°C, 4.75V < VCC < 5.25V unless otherwise specified
Parameter
Test Conditions
VOD1
VOD2
Differential Driver Output Voltage (Unloaded)
Differential Driver Output Voltage (with Load)
IO = 0
R = 50Ω; (RS-422) (3)
R = 27Ω; (RS-485)
ΔVOD
Complementary Output States
Differential Output Voltage For
Change in Magnitude of Driver
R = 27Ω
VOC
Δ|VOC|
Driver Common Mode Output Voltage
Change in Magnitude of Driver
Common Mode Output Voltage
For Complementary Output States
VIH
Input High Voltage
VIL
Input Low Voltage
VCL
Input Clamp Voltage
IIL
Input Low Current
IIH
Input High Current
DI, DE, RE ,
RE/DE
IIN = 18 mA
VIL = 0.4V
VIH = 2.4V
Min Typ Max Units
5
V
2
V
1.5
V
0.2
V
3.0
V
0.2
V
2
V
0.8
V
1.5 V
200 μA
20 μA
(1) All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device ground unless
otherwise specified.
(2) All typicals are given for VCC = 5V and TA = 25°C.
(3) All limits for which this note is applied must be derated by 10% for DS3695AT. Other parameters remain the same for this extended
temperature range device (40°C TA +85°C).
2
Submit Documentation Feedback
Copyright © 1996–2013, Texas Instruments Incorporated
Product Folder Links: DS3695A DS3695AT DS3696A


Part Number DS3696A
Description Multipoint RS485/RS422 Transceivers
Maker etcTI
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DS3696A Datasheet PDF






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