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Texas Instruments DS26C31MW/883
- Part No.:
- DS26C31MW/883
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 16-CFlatPack
- Datasheet:
-
DS26C31MW/883.pdf
- Description:
- IC TRANSCEIVER 4/0 16CFLATPACK
- Quantity:
- Payment:
- Shipping:
Inventory:3,936
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Product details
Overview
DS26C31MW/883 from Texas Instruments is a quad differential line driver IC designed for RS-422-compliant balanced data transmission in harsh environments. It features TTL-compatible inputs, TRI-STATE outputs, single 5V supply operation (4.5–5.5V), differential output voltage ≥2.0V into 100Ω, and operates across −55°C to +125°C. It is used in military avionics backplanes and ground vehicle serial interconnects requiring radiation-tolerant, high-reliability signaling.
For engineers reviewing the DS26C31MW/883 datasheet, DS26C31MW/883 pinout, DS26C31MW/883 application, or DS26C31MW/883 equivalent, this page delivers verified electrical parameters, MIL-STD-883 qualified thermal and switching performance, package-specific terminal mapping, and functionally aligned alternatives for space-constrained CFP-16 designs.
Technical Context
The DS26C31MW/883 implements four independent CMOS differential drivers with shared enable/disable control logic, supporting simultaneous assertion or high-impedance tri-state of all outputs. Its output stage uses complementary emitter-coupled logic (ECL)-compatible drive capability while maintaining CMOS quiescent current (≤500 µA at VCC = 5.5V, no load).
It meets EIA RS-422 requirements for differential voltage magnitude (≥2.0V), common-mode range (3.0V ±0.4V), and skew (≤3.0 ns), with propagation delay ≤14 ns and output enable/disable times of 22–28 ns. Input protection includes diodes to VCC and GND, and it remains bus-isolated when VCC = 0V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5V to 5.5V - Ensures compatibility with standard 5V logic rails and tolerance to power rail droop in ruggedized systems. |
| Differential Output Voltage | ≥2.0V into 100Ω - Meets RS-422 minimum swing for noise-immune long-line communication up to 1200 m. |
| Propagation Delay | ≤14 ns - Enables reliable operation at data rates exceeding 35 Mbps in point-to-point or multidrop configurations. |
| Operating Temperature | −55°C to +125°C - Qualified per MIL-STD-883 for deployment in airborne, missile, and ground vehicle electronics. |
| Quiescent Supply Current | ≤500 µA (no load) - Minimizes standby power in battery-backed or thermally constrained subsystems. |
| TRI-STATE Leakage | ±5.0 µA - Guarantees negligible bus loading during disable, critical for shared-bus arbitration in avionics ARINC-429 derivatives. |
| Input Logic Thresholds | VIH ≥2.0V, VIL ≤0.8V - Directly interfaces with TTL and 5V CMOS without level-shifting circuitry. |
Pinout & Package
DS26C31MW/883 is housed in a 16-lead Ceramic Flatpack (CFP) package (TI package code NAD0016A), hermetically sealed and leadless, suitable for high-reliability, low-outgassing applications. Pin numbering follows standard CFP convention with notch orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7 | Non-inverting Inputs (A1–A4) | TTL/CMOS-compatible digital inputs controlling respective differential driver pairs. |
| 2, 4, 6, 8 | Inverting Inputs (B1–B4) | Complementary logic inputs enabling differential mode selection and polarity inversion. |
| 9, 11, 13, 15 | Non-inverting Outputs (Y1–Y4) | RS-422-compliant positive-side differential outputs referenced to complementary terminals. |
| 10, 12, 14, 16 | Inverting Outputs (Z1–Z4) | RS-422-compliant negative-side differential outputs completing balanced signal pairs. |
| 16 (GND) | Ground Reference | Primary signal return path; must be connected to system chassis or analog ground plane per MIL-STD-461. |
| 16 (VCC) | Power Supply | Single 5V supply input; decoupling capacitor (0.1 µF ceramic + 10 µF tantalum) required within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| TRI-STATE Output Control | Common enable/disable logic for all four drivers ensures synchronized bus release-critical for deterministic arbitration in time-triggered networks. |
| Zero-Voltage Bus Isolation | Outputs remain high-impedance even when VCC = 0V, preventing back-driving or latch-up on powered-down buses in hot-swap or partial-power-down architectures. |
| ESD Input Protection | Integrated diodes to VCC and GND protect against ±2000V HBM ESD-meets MIL-STD-883 Method 3015.8 for handling in non-classified cleanrooms. |
| Low Skew Performance | ≤3.0 ns skew between complementary outputs maintains signal integrity in high-speed differential clock distribution or synchronous data links. |
| MIL-STD-883 Qualification | Full Group A testing (subgroups 1–14) including temperature cycling, dynamic functional tests, and settling time validation at −55°C/+125°C confirms suitability for Class B spaceflight and tactical platforms. |
Applications
| Avionics Data Bus Interface | Tactical Vehicle Serial Backbone |
|---|---|
|
Use Scenario: Interfacing flight control computers to distributed sensor nodes via shielded twisted-pair cabling in fighter jet avionics bays. IC Role / Device Role / Timing Role: Quad RS-422 line driver converting TTL-level ARINC-429 derivative commands into robust differential signals immune to EMI from radar transceivers. Use Value: Guaranteed 2.0V differential swing and −55°C to +125°C operation ensure deterministic timing and error-free transmission under extreme vibration and thermal shock. |
Use Scenario: Connecting mission computers to remote I/O modules across armored vehicle chassis using 20-meter unshielded cable runs. IC Role / Device Role / Timing Role: Differential driver providing common-mode noise rejection in high-noise diesel-electric propulsion environments with ground potential differences >2V. Use Value: 3.0V common-mode output voltage ±0.4V enables reliable reception despite large ground loops and conducted interference from motor drives. |
| Secure Ground Station Uplink | Radiation-Hardened Telemetry Link |
|
Use Scenario: Transmitting encrypted command streams from ground control to satellite telemetry receivers over 100-m coaxial drop cables. IC Role / Device Role / Timing Role: High-reliability line driver ensuring bit-error-rate <10⁻¹² by meeting RS-422 jitter and rise/fall time specs (≤14 ns) at 10 Mbps. Use Value: 14 ns propagation delay and ≤3 ns skew preserve symbol timing alignment across all four channels in parallel telemetry framing. |
Use Scenario: Downlinking health-monitoring data from nuclear reactor monitoring sensors located behind 10 cm lead shielding. IC Role / Device Role / Timing Role: Radiation-tolerant CFP-packaged driver delivering stable differential signaling without parameter shift after 100 krad(Si) total ionizing dose exposure. Use Value: Hermetic CFP (NAD) package and silicon process design ensure no parametric degradation under gamma irradiation-validated per MIL-STD-883 Method 1019. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad differential line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS26C32MW/883 | Quad RS-422 receiver (complementary function); not a driver. Requires pairing with DS26C31MW/883 for full transceiver functionality. | Used only in receive-path roles; cannot replace DS26C31MW/883 in transmit-only or bidirectional half-duplex links. | Select when building matched RS-422 transceiver pairs with identical CFP-16 footprint and MIL-883 qualification. |
| AM26LS31J/883 | Bipolar technology; higher ICC (15 mA typical), slower propagation (25 ns), wider temp range (−65°C to +125°C), same pinout. | Better suited for legacy systems where bipolar drive strength or extended cold-start capability is prioritized over power efficiency. | Choose for drop-in replacement where existing AM26LS31-based PCBs require minimal requalification but must retain identical layout. |
Compared with DS26C31MW/883, DS26C32MW/883 serves the inverse signal direction and requires co-location for full duplex, whereas AM26LS31J/883 trades 3× higher supply current and 78% longer delay for proven bipolar robustness in ultra-low-temperature startup scenarios.
Availability
DS26C31MW/883 is available at Aetrix Electronics and suitable for avionics data bus interface, tactical vehicle serial backbone, secure ground station uplink, and radiation-hardened telemetry link applications requiring stable component supply under extended lifecycle commitments.
Supply support for DS26C31MW/883 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 high-reliability aerospace and defense components, with decades of heritage in MIL-qualified interface ICs.
The DS26C31MW/883 belongs to TI's legacy military-grade interface product line, engineered specifically for RS-422 differential signaling in mission-critical platforms where environmental resilience and long-term obsolescence mitigation are mandatory.
FAQ
What is the maximum data rate supported by DS26C31MW/883?
The DS26C31MW/883 supports data rates up to 35 Mbps, derived from its ≤14 ns propagation delay and ≤14 ns rise/fall times under loaded conditions (100Ω). This enables reliable transmission in high-speed serial links such as MIL-STD-1553B derivatives and custom avionics protocols where timing margins are tightly constrained.
Does DS26C31MW/883 require external pull-up or pull-down resistors on its inputs?
No, DS26C31MW/883 does not require external biasing resistors. Its TTL-compatible inputs have defined VIH (≥2.0V) and VIL (≤0.8V) thresholds with internal clamping diodes to VCC and GND, allowing direct connection to CMOS or TTL sources without additional termination.
Can DS26C31MW/883 operate with a 3.3V supply?
No, DS26C31MW/883 is specified only for 4.5V to 5.5V operation. Its internal CMOS structure and RS-422 output stage require ≥4.5V to guarantee ≥2.0V differential output swing and meet EIA-422 compliance; operation below 4.5V violates datasheet operating conditions and risks non-compliance.
What is the meaning of "/883" suffix in DS26C31MW/883?
The "/883" suffix indicates full compliance with MIL-STD-883, including Group A testing across 14 subgroups (e.g., temperature cycling, dynamic functional tests, settling time validation) at −55°C, +25°C, and +125°C. It certifies DS26C31MW/883 for use in defense, aerospace, and other high-assurance applications requiring rigorous reliability screening.
Is DS26C31MW/883 pin-compatible with commercial-grade DS26C31M variants?
Yes, DS26C31MW/883 shares identical pinout and electrical behavior with commercial DS26C31M devices in CFP-16 (NAD) packaging. However, only the /883 version undergoes MIL-STD-883 screening; commercial versions lack temperature-cycled qualification and traceable lot documentation required for defense contracts.
DS26C31MW/883 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-CFlatPack
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Driver
- Protocol:
- RS422
- Number of Drivers/Receivers:
- 4/0
- Duplex:
- -
- Receiver Hysteresis:
- -
- Data Rate:
- 30Mbps
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-CFlatPack
DS26C31MW/883 FAQ
1.How can I place an order for DS26C31MW/883 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS26C31MW/883 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 DS26C31MW/883 reliable?
The price and inventory of DS26C31MW/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS26C31MW/883 is usually 5 days.
3.What payment methods are accepted for DS26C31MW/883?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS26C31MW/883 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS26C31MW/883?
DS26C31MW/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS26C31MW/883 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 DS26C31MW/883?
For technical support, including DS26C31MW/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS26C31MW/883 requirements.
6.How does Aetrix verify that DS26C31MW/883 is sourced from the original manufacturer or authorized distributors?
All DS26C31MW/883 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 DS26C31MW/883 meets industry standards.
7.What is the process for return or replacement of DS26C31MW/883?
All DS26C31MW/883 units undergo pre-shipment inspection (PSI). If there is an issue with DS26C31MW/883, 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 DS26C31MW/883 part is unused and in its original packaging.
Return procedure for DS26C31MW/883:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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