DS3695, DS3695T, DS3696, DS3697

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SNLS072C – MAY 1998 – REVISED APRIL 2013

Multipoint RS485/RS422 Transceivers/Repeaters

Check for Samples: DS3695, DS3695T, DS3696, DS3697

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FEATURES

DESCRIPTION

The DS3695, DS3696, and DS3697 are high speed

2

•

Meets EIA standard RS485 for Multipoint Bus

differential

TRI-STATE

bus/line

Transmission and is Compatible with RS-422

transceivers/repeaters

designed

to

meet

the

•

15 ns Driver Propagation Delays with 2 ns

requirements of EIA standard RS485 with extended

Skew (Typical)

common mode range (+12V to

−7V), for multipoint

data transmission.

•

Single +5V supply

•

−7V to +12V Bus Common Mode Range

The driver and receiver outputs feature TRI-STATE

Permits ±7V Ground Difference Between

capability. The driver outputs remain in TRI-STATE

Devices on the Bus

over the entire common mode range of +12V to

−7V.

Bus faults that cause excessive power dissipation

•

Thermal Shutdown Protection

within the device trigger a thermal shutdown circuit,

•

High Impedance to Bus with Driver in TRI-

which

forces

the

driver

outputs

into

the

high

STATE or with Power Off, Over the Entire

impedance state. The DS3696 provides an output pin

Common Mode Range Allows the Unused

TS (thermal shutdown) which reports the occurrence

Devices on the Bus to be Powered Down

of the thermal shutdown of the device. This is an

“open collector” pin with an internal 10 k

Ω pull-up

•

Combined Impedance of a Driver Output and

resistor. This allows the line fault outputs of several

Receiver Input is Less than one RS485 Unit

devices to be wire OR-ed.

Load, Allowing up to 32 Transceivers on the

Bus

Both AC and DC specifications are specified over the

0°C to 70°C temperature and 4.75V to 5.25V supply

•

70 mV Typical Receiver Hysteresis

voltage range.

Connection and Logic Diagrams

Figure 1. PDIP (Top View)

Figure 2. PDIP (Top View)

See Package Number P (R-PDIP-T8)

See Package Number P (R-PDIP-T8)

Figure 3. PDIP (Top View)

See Package Number P (R-PDIP-T8)

TS pin was LF (Line Fault) in previous data sheets and reports the occurrence of a thermal shutdown of the device.

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2

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PRODUCTION DATA information is current as of publication date.

Copyright © 1998–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.