DS3695AMX Equivalent & Substitute Parts

Part Overview

The DS3695AMX is a half-duplex RS422/RS485 transceiver IC manufactured by Texas Instruments in 8-SOIC surface mount packaging. This part is classified as obsolete, with 6,848 units currently in stock. The DS3695AMX operates within a 4.75V to 5.25V supply voltage range and supports a receiver hysteresis of 70 mV, making it suitable for industrial serial communication applications requiring half-duplex operation.

Due to its obsolete status, identifying equivalent and substitute parts is essential for ongoing production support, design updates, and long-term component availability assurance. Active alternatives with comparable electrical and mechanical specifications are available from Texas Instruments and other manufacturers.

Key Parameters

Parameter	DS3695AMX Value
Manufacturer	Texas Instruments
Type	Transceiver
Protocol	RS422, RS485
Duplex Configuration	Half
Number of Drivers/Receivers	1/1
Receiver Hysteresis	70 mV
Voltage Supply Range	4.75V ~ 5.25V
Operating Temperature	0°C ~ 70°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS Non-Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the DS3695AMX is determined by the following critical parameters:

Primary Compatibility Criteria:

Protocol: RS422/RS485 half-duplex operation
Duplex Configuration: Half-duplex only
Number of Drivers/Receivers: 1/1 configuration
Package Type: 8-SOIC surface mount form factor
Voltage Supply Range: 4.75V ~ 5.25V compatibility
Mounting Type: Surface mount

Secondary Compatibility Factors:

Receiver Hysteresis: 50 mV to 120 mV range acceptable
Operating Temperature: Minimum 0°C to 70°C coverage required
RoHS Compliance: ROHS3 compliant alternatives preferred for new designs
Moisture Sensitivity: MSL 1 (Unlimited) standard

Substitute parts are grouped based on their adherence to these parameters. All listed substitutes maintain the core RS422/RS485 half-duplex transceiver functionality within the specified 8-SOIC package and voltage supply requirements.

Parameter Comparison

Part Number	Manufacturer	Protocol	Duplex	Drivers/Receivers	Receiver Hysteresis (mV)	Supply Voltage	Operating Temp (°C)	Package	Product Status	RoHS Status
DS3695AMX	Texas Instruments	RS422, RS485	Half	1/1	70	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Obsolete	RoHS Non-Compliant
SN75ALS176ADR	Texas Instruments	RS422, RS485	Half	1/1	60	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Active	ROHS3 Compliant
SN65176BDR	UMW	RS422, RS485	Half	1/1	70	4.75V ~ 5.25V	-40 ~ 105	8-SOIC	Active	ROHS3 Compliant
SN65ALS1176DR	Texas Instruments	RS422, RS485	Half	1/1	60	4.75V ~ 5.25V	-25 ~ 85	8-SOIC	Active	ROHS3 Compliant
SN75176AD	Texas Instruments	RS422, RS485	Half	1/1	50	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Obsolete	ROHS3 Compliant
SN75176ADG4	Texas Instruments	RS422, RS485	Half	1/1	50	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Obsolete	ROHS3 Compliant
SN75176ADR	Texas Instruments	RS422, RS485	Half	1/1	50	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Active	ROHS3 Compliant
SN75ALS176BD	Texas Instruments	RS422, RS485	Half	1/1	60	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Obsolete	ROHS3 Compliant
SN75ALS176BDR	Texas Instruments	RS422, RS485	Half	1/1	60	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Active	ROHS3 Compliant
SN75ALS176DR	Texas Instruments	RS422, RS485	Half	1/1	60	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Obsolete	ROHS3 Compliant
TL3695DR	Texas Instruments	RS422, RS485	Half	1/1	120	4.75V ~ 5.25V	0 ~ 70	8-SOIC	Obsolete	ROHS3 Compliant

Engineering Selection Recommendations

For Active Production and New Designs:

The SN75ALS176ADR and SN75ALS176BDR are the primary recommended substitutes for the DS3695AMX. Both parts are manufactured by Texas Instruments, maintain identical supply voltage specifications (4.75V ~ 5.25V), operate within the 0°C to 70°C temperature range, and are ROHS3 compliant. The SN75ALS176ADR features 60 mV receiver hysteresis compared to the DS3695AMX's 70 mV, while the SN75ALS176BDR also provides 60 mV hysteresis. Both are available in active production status with substantial inventory levels (50,260 and 7,796 units respectively).

The SN75176ADR offers an alternative with 50 mV receiver hysteresis and active product status, providing additional design flexibility while maintaining full electrical and mechanical compatibility.

For Extended Temperature Range Applications:

The SN65ALS1176DR supports an extended operating temperature range of -25°C to 85°C with a 35 Mbps data rate specification, making it suitable for applications requiring broader thermal performance. This part maintains the 60 mV receiver hysteresis and is ROHS3 compliant with 650,200 units in stock.

The SN65176BDR, manufactured by UMW, extends the operating temperature to -40°C to 105°C while matching the DS3695AMX's 70 mV receiver hysteresis specification. This part is ROHS3 compliant and suitable for industrial environments with extreme temperature requirements.

Obsolete Part Considerations:

Parts classified as obsolete (SN75176AD, SN75176ADG4, SN75ALS176BD, SN75ALS176DR, and TL3695DR) should be evaluated only for legacy system maintenance or when existing inventory is available. These parts maintain electrical compatibility but lack active production support.

Frequently Asked Questions (FAQ)

Q: Can the DS3695AMX be directly replaced with SN75ALS176ADR in existing designs?

A: Yes. Both parts share identical supply voltage (4.75V ~ 5.25V), operating temperature range (0°C ~ 70°C), 8-SOIC package configuration, and RS422/RS485 half-duplex transceiver functionality. The receiver hysteresis difference (70 mV vs. 60 mV) does not prevent direct substitution in standard applications. The SN75ALS176ADR is ROHS3 compliant and in active production.

Q: What is the significance of receiver hysteresis variation among these parts?

A: Receiver hysteresis determines the voltage differential required for the receiver to switch states, affecting noise immunity and signal integrity. The DS3695AMX specifies 70 mV hysteresis. Substitutes with 50 mV to 120 mV hysteresis remain functionally compatible for RS422/RS485 half-duplex operation within the specified voltage and temperature parameters. Lower hysteresis (50 mV) provides faster response but reduced noise immunity; higher hysteresis (120 mV) improves noise immunity at the cost of response speed.

Q: Are there packaging differences between substitute options?

A: All listed substitutes maintain the 8-SOIC (0.154", 3.90mm Width) surface mount package. Packaging variants (Cut Tape, Digi-Reel, Tube, Tape & Reel) affect supply and handling but do not impact electrical or mechanical compatibility. Select packaging based on procurement and assembly requirements.

Q: Why is RoHS compliance important for substitute selection?

A: The DS3695AMX is RoHS non-compliant. For new designs and production environments with RoHS requirements, ROHS3 compliant substitutes (SN75ALS176ADR, SN75176ADR, SN65ALS1176DR, SN65176BDR) are necessary to meet regulatory and customer specifications. Legacy systems may continue using non-compliant parts if procurement and regulatory constraints permit.

Q: Which substitute offers the best inventory availability?

A: The SN65ALS1176DR provides the highest inventory level at 650,200 units in stock. The SN75ALS176ADR offers 50,260 units, and the SN75176ADR provides 35,100 units. Inventory levels should be verified with suppliers for current availability.

Q: Can substitutes with extended temperature ranges replace the DS3695AMX in standard applications?

A: Yes. Parts with extended temperature ranges (SN65ALS1176DR: -25°C to 85°C; SN65176BDR: -40°C to 105°C) are backward compatible with the DS3695AMX's 0°C to 70°C specification. Extended range parts provide additional design margin and are suitable for applications with potential thermal variations.

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