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Texas Instruments DS3695AM
- Part No.:
- DS3695AM
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS3695AM.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,459
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Product details
Overview
DS3695AM from Texas Instruments is a high-speed multipoint RS485/RS422 transceiver designed for industrial bus communication, featuring 15 ns typical driver propagation delay, −7V to +12V bus common-mode range, and single +5V supply operation. It supports up to 32 unit loads on the bus and includes thermal shutdown protection with high-impedance driver outputs over the full common-mode range.
For engineers reviewing the DS3695AM datasheet, DS3695AM pinout, DS3695AM application, or DS3695AM equivalent, key selection criteria include differential driver output voltage (5 V unloaded), receiver hysteresis (70 mV typical), TRI-STATE control timing (tPLZ/tPHZ ≤16 ns), bus fault tolerance, and compatibility with extended-temperature variants like DS3695T.
Technical Context
The DS3695AM implements a true differential RS485/RS422 transceiver architecture with separate driver and receiver sections, both fully compliant with EIA RS485 and RS422 standards. Its driver delivers 5 V differential output voltage under no load and maintains ≥1.5 V into 27 Ω (RS485), while the receiver features ±0.2 V input threshold with 70 mV hysteresis and 12 kΩ input resistance.
TRI-STATE control is implemented via independent DE (driver enable) and RE (receiver enable) inputs, allowing bidirectional half-duplex operation. Driver outputs remain high-impedance across the full −7V to +12V common-mode range, and thermal shutdown forces driver outputs into high-Z state - reported externally only on DS3696 (not DS3695AM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Differential Driver Output Voltage (unloaded) | 5 V - Ensures robust signal swing for noise margin in long-cable RS485 networks |
| Driver Propagation Delay | 15 ns (typ) - Enables >20 Mbps data rates at short distances with tight timing budgets |
| Bus Common-Mode Range | −7 V to +12 V - Supports ±7 V ground potential difference between nodes without communication failure |
| Receiver Input Hysteresis | 70 mV (typ) - Rejects noise-induced false transitions on noisy industrial buses |
| Supply Voltage Range | 4.75 V to 5.25 V - Matches standard 5 V logic rails with ±5% tolerance for stable operation |
| Unit Load Count | ≤1 - Combined driver/receiver impedance <1 RS485 unit load, enabling 32-node bus capacity |
| Thermal Shutdown | Yes - Internal circuit disables driver outputs during overtemperature, preventing latch-up or damage |
| TRI-STATE Enable Range | Full −7 V to +12 V common mode - Maintains driver high-Z even during bus fault conditions |
Pinout & Package
DS3695AM is housed in an 8-pin plastic dual in-line package (PDIP), package drawing P (R-PDIP-T8), with through-hole mounting and RoHS-compliant CU SN lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DI) | Driver Input | CMOS/TTL-compatible digital input controlling driver output state (DO/DO) |
| 2 (DE) | Driver Enable | Active-high control: enables driver when high; disables to high-Z when low |
| 3 (GND) | Ground Reference | Signal and power return path for internal circuitry and I/O interfaces |
| 4 (A / DO) | Non-Inverting Driver Output / Bus A | Differential positive bus line output; driven high or low based on DI and DE |
| 5 (B / DO) | Inverting Driver Output / Bus B | Differential negative bus line output; complementary to pin 4 |
| 6 (RI) | Non-Inverting Receiver Input | Receives differential bus voltage (A–B); referenced to internal threshold |
| 7 (RE) | Receiver Enable | Active-low control: enables receiver when low; disables to high-Z when high |
| 8 (VCC) | Positive Supply | +5 V DC power input; decoupling capacitor required per datasheet layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| EIA RS485 & RS422 Compliance | Fully meets electrical and timing requirements of both standards, including unit-load definition and common-mode limits |
| 15 ns Driver Propagation Delay | Enables reliable operation at 20+ Mbps over short stubs and controlled-impedance traces |
| 70 mV Receiver Hysteresis | Provides noise immunity against EMI and ground bounce in factory-floor environments |
| −7 V to +12 V Common-Mode Range | Allows interconnection of devices with up to 7 V ground potential difference without signal corruption |
| Thermal Shutdown Protection | Automatically disables driver outputs during overtemperature events, preserving device integrity |
| High-Impedance TRI-STATE Over Full Common Mode | Prevents bus contention and signal degradation during power-down or fault conditions |
Applications
| Industrial PLC Networks | Building Automation Systems |
|---|---|
|
Use Scenario: Multi-drop serial communication between programmable logic controllers, I/O modules, and HMIs in factory automation cabinets. IC Role / Device Role / Timing Role: RS485 transceiver providing half-duplex differential signaling with noise-immune bus interface. Use Value: 70 mV receiver hysteresis and −7V to +12V common-mode tolerance ensure reliable data exchange amid motor drive EMI and ground loops. |
Use Scenario: Interconnecting HVAC controllers, lighting panels, and fire alarm nodes over shared twisted-pair backbone cabling. IC Role / Device Role / Timing Role: Bus repeater-capable transceiver enabling signal regeneration and node isolation in large-scale building networks. Use Value: 15 ns driver propagation delay and 5 V differential output maintain signal integrity across 1200 m cable runs at 100 kbps. |
| Point-of-Sale Terminal Clusters | Energy Metering Gateways |
|
Use Scenario: Daisy-chained receipt printers, barcode scanners, and cash drawers communicating with central POS host via RS485. IC Role / Device Role / Timing Role: Half-duplex transceiver managing bidirectional command/response traffic on shared bus segments. Use Value: Single +5 V supply simplifies power design; TRI-STATE control allows dynamic bus arbitration without external logic. |
Use Scenario: Aggregating pulse outputs and Modbus RTU data from residential smart meters using a centralized gateway. IC Role / Device Role / Timing Role: Robust physical layer interface supporting long-haul, multi-node meter reading in electric utility infrastructure. Use Value: Thermal shutdown protection prevents failure during sustained high-temperature operation inside outdoor meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RS485 transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65HVD12DR | Lower ICC (1.1 mA vs 42 mA), integrated slew-rate limiting, no thermal shutdown reporting pin | Better suited for low-power, noise-sensitive applications; lacks DS3695AM's high-speed propagation performance | Select SN65HVD12DR for battery-powered or EMC-critical designs where speed <10 Mbps suffices |
| MAX3082ESA+ | Higher ESD rating (±15 kV HBM), 5 V supply only, no thermal shutdown circuit | Superior transient immunity in unshielded installations; lacks DS3695AM's bus fault recovery behavior | Choose MAX3082ESA+ for harsh electrostatic environments where thermal fault reporting is non-critical |
Compared with SN65HVD12DR and MAX3082ESA+, DS3695AM offers superior speed (15 ns vs ≥30 ns propagation), guaranteed thermal shutdown response, and proven reliability in legacy industrial systems - making it optimal for high-throughput, fault-resilient RS485 links requiring deterministic bus recovery.
Availability
DS3695AM is available at Aetrix Electronics and suitable for industrial PLC networks, building automation systems, and energy metering gateways requiring stable component supply and long-term obsolescence management.
Supply support for DS3695AM includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions, with decades of expertise in industrial interface ICs.
The DS3695AM belongs to TI's legacy RS485 transceiver product line, engineered specifically for rugged, high-reliability multipoint bus communication in factory automation and infrastructure applications.
FAQ
What is the maximum data rate supported by the DS3695AM?
The DS3695AM supports data rates exceeding 20 Mbps under ideal conditions (short trace lengths, controlled impedance, low capacitance). Its 15 ns typical driver propagation delay and 6–10 ns differential transition times enable high-speed operation, though actual achievable rate depends on cable length, termination, and noise environment. For 1200 m cable runs, reliable operation is specified up to 100 kbps per RS485 standard.
Does the DS3695AM include thermal shutdown protection?
Yes, the DS3695AM includes internal thermal shutdown protection that forces driver outputs into high-impedance state when junction temperature exceeds safe limits. Unlike DS3696, DS3695AM does not provide an external TS (thermal shutdown) status pin - the protection operates autonomously without user intervention or monitoring capability.
What is the bus common-mode voltage range specification for the DS3695AM?
The DS3695AM supports a bus common-mode voltage range of −7 V to +12 V, as confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables. This allows the device to operate reliably despite up to 7 V ground potential difference between interconnected nodes - a critical requirement in distributed industrial systems with multiple power domains.
Can the DS3695AM be used in place of the DS3695N or DS3695TN?
DS3695AM is a variant within the same functional family as DS3695N and DS3695TN. All share identical pinout, electrical specifications, and logic behavior. The "AM" suffix denotes a specific assembly/test flow and packaging configuration - not a functional deviation. It is a direct replacement for DS3695N in commercial-temperature applications and functionally compatible with DS3695TN where extended temperature range is not required.
How does the DS3695AM handle bus faults such as short circuits or overvoltage?
The DS3695AM responds to bus faults via two mechanisms: first, its driver short-circuit output current is limited to ±250 mA, preventing destructive current flow; second, sustained overtemperature caused by fault conditions triggers thermal shutdown, forcing driver outputs into high-impedance state. Receiver inputs tolerate −10 V to +15 V, and the device remains high-Z with power off - protecting upstream logic during bus faults.
DS3695AM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Transceiver
- Protocol:
- RS422, RS485
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- Half
- Receiver Hysteresis:
- 70 mV
- Data Rate:
- -
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DS3695AM FAQ
1.How can I place an order for DS3695AM through Aetrix?
Please submit a Request for Quotation (RFQ) for DS3695AM on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DS3695AM reliable?
The price and inventory of DS3695AM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS3695AM is usually 5 days.
3.What payment methods are accepted for DS3695AM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS3695AM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS3695AM?
DS3695AM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS3695AM order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DS3695AM?
For technical support, including DS3695AM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS3695AM requirements.
6.How does Aetrix verify that DS3695AM is sourced from the original manufacturer or authorized distributors?
All DS3695AM products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DS3695AM meets industry standards.
7.What is the process for return or replacement of DS3695AM?
All DS3695AM units undergo pre-shipment inspection (PSI). If there is an issue with DS3695AM, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DS3695AM part is unused and in its original packaging.
Return procedure for DS3695AM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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