Datasheet

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DS3695, DS3695T, DS3696, DS3697

www.ti.com

SNLS072C –MAY 1998–REVISED APRIL 2013

Multipoint RS485/RS422 Transceivers/Repeaters

Check for Samples: DS3695, DS3695T, DS3696, DS3697

FEATURES

DESCRIPTION

The DS3695, DS3696, and DS3697 are high speed

• 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 kΩ 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.

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.

2All trademarks are the property of their respective owners.

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.

Summary of content (17 pages)

PAGE 1
DS3695, DS3695T, DS3696, DS3697 www.ti.com SNLS072C – MAY 1998 – REVISED APRIL 2013 Multipoint RS485/RS422 Transceivers/Repeaters Check for Samples: DS3695, DS3695T, DS3696, DS3697 FEATURES DESCRIPTION • The DS3695, DS3696, and DS3697 are high speed differential TRI-STATE bus/line transceivers/repeaters designed to meet the requirements of EIA standard RS485 with extended common mode range (+12V to −7V), for multipoint data transmission.
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DS3695, DS3695T, DS3696, DS3697 SNLS072C – MAY 1998 – 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.
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DS3695, DS3695T, DS3696, DS3697 www.ti.com SNLS072C – MAY 1998 – REVISED APRIL 2013 Electrical Characteristics (1)(2) (continued) 0°C ≤ TA ≤ +70°C, 4.75V < VCC < 5.
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DS3695, DS3695T, DS3696, DS3697 SNLS072C – MAY 1998 – REVISED APRIL 2013 www.ti.com AC Test Circuits and Switching Waveforms Figure 4. Driver VOD and VOC Figure 5. Receiver Propagation Delay Test Circuit Note: Differential input voltage may be realized by grounding RI and pulsing RI between +2.5V and −2.5V. Figure 6. Receiver Input-to-Output Propagation Delay Timing Figure 7. Receiver Enable/Disable Propagation Delay Timing Note: Unless otherwise specified the switches are closed.
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DS3695, DS3695T, DS3696, DS3697 www.ti.com SNLS072C – MAY 1998 – REVISED APRIL 2013 Figure 8. Driver Propagation Delay and Transition Time Test Circuits Note: tPLH and tPHL are measured to the respective 50% points. tSKEW is the difference between propagation delays of the complementary outputs. Figure 9. Driver Input-to-Output Propagation Delay Timing (Single-Ended) Figure 10. Driver Enable/Disable Propagation Delay Timing Figure 11.
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DS3695, DS3695T, DS3696, DS3697 SNLS072C – MAY 1998 – REVISED APRIL 2013 www.ti.com Function Tables Table 1. DS3695/DS3696 Transmitting (1) Inputs (1) Outputs RE DE DI Thermal Shutdown X 1 1 OFF 0 1 H X 1 0 OFF 1 0 H X 0 X OFF Z Z H X 1 X ON Z Z L DO DO TS * (DS3696 Only) X—Don't care condition Z—High impedance state *TS is an “open collector” output with an on-chip 10 kΩ pull-up resistor that reports the occurrence of a thermal shutdown of the device. Table 2.
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DS3695, DS3695T, DS3696, DS3697 www.ti.com SNLS072C – MAY 1998 – REVISED APRIL 2013 Typical Performance Characteristics Driver VOH vs IOH vs Temperature Driver VOH vs IOH vs VCCDriver VOH vs IOH vs VCC Figure 12. Figure 13. Driver VOL vs IOL vs Temperature Driver VOH vs IOH vs VCC Figure 14. Figure 15. Driver Differential Propagation Delay vs Temperature Driver Differential Propagation Delay vs VCC Figure 16. Figure 17.
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DS3695, DS3695T, DS3696, DS3697 SNLS072C – MAY 1998 – REVISED APRIL 2013 www.ti.com Typical Performance Characteristics (continued) 8 Driver Single-Ended Propagation Delay vs Temperature Driver Single-Ended Propagation Delay vs VCC Figure 18. Figure 19. Driver Transition Time vs Temperature Driver Transition Time vs VCC Figure 20. Figure 21. Cable Length vs Data Rate Supply Current vs Temperature Figure 22. Figure 23.
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DS3695, DS3695T, DS3696, DS3697 www.ti.com SNLS072C – MAY 1998 – REVISED APRIL 2013 Typical Performance Characteristics (continued) Supply Current vs Power Supply Voltage Driver ICC vs Switching Frequency Figure 24. Figure 25. Driver Short Circuit Current vs Temperature Receiver VOH vs IOH vs Temperature Figure 26. Figure 27. Receiver VOH vs IOH vs VCC Driver Short Circuit Current vs Temperature Figure 28. Figure 29.
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DS3695, DS3695T, DS3696, DS3697 SNLS072C – MAY 1998 – REVISED APRIL 2013 www.ti.com Typical Performance Characteristics (continued) 10 Receiver VOH vs IOH vs Temperature Receiver VOH vs IOH vs VCC Figure 30. Figure 31. Receiver VOL vs IOL vs Temperature Receiver VOL vs IOL vs VCC Figure 32. Figure 33. Receiver Differential Propagation Delay vs Temperature Receiver Differential Propagation Delay vs VCC Figure 34. Figure 35.
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DS3695, DS3695T, DS3696, DS3697 www.ti.com SNLS072C – MAY 1998 – REVISED APRIL 2013 Typical Performance Characteristics (continued) Receiver Short Circuit Current vs Temperature Receiver Short Circuit Current vs Power Supply Figure 36. Figure 37. Receiver Non-Inverting Input Current vs Temperature Receiver Non-Inverting Input Current vs Power Supply Voltage Figure 38. Figure 39. Receiver Inverting Input Current vs Temperature Receiver Inverting Input Current vs Power Supply Voltage Figure 40.
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DS3695, DS3695T, DS3696, DS3697 SNLS072C – MAY 1998 – REVISED APRIL 2013 www.ti.com Typical Performance Characteristics (continued) 12 Hysteresis and Differential Transition Voltage vs Temperature Hysteresis and Differential Transition Voltage vs VCC Figure 42. Figure 43.
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DS3695, DS3695T, DS3696, DS3697 www.ti.com SNLS072C – MAY 1998 – REVISED APRIL 2013 REVISION HISTORY Changes from Revision B (April 2013) to Revision C • Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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