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Texas Instruments DS26LV32ATM
- Part No.:
- DS26LV32ATM
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS26LV32ATM.pdf
- Description:
- IC TRANSCEIVER 0/4 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,210
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Product details
Overview
DS26LV32ATM from Texas Instruments is a 3.3V quad differential line receiver compliant with TIA/EIA-422-B and ITU-T V.11 standards, designed for high-speed RS-422 data reception in industrial communication systems. It delivers 32 MHz toggle frequency, ±10V common-mode input range at VID = 0.2V, and 4 ns maximum receiver skew, enabling robust signal recovery in noisy factory-floor or motor-control networks.
For engineers reviewing the DS26LV32ATM datasheet, DS26LV32ATM pinout, DS26LV32ATM application, or DS26LV32ATM equivalent, key selection criteria include its 3.3V operation, TRI-STATE enable control (EN/EN*), failsafe open-input behavior, low 9 mA typical ICC, and SOIC-16 package compatibility with legacy DS26C32AT designs.
Technical Context
The DS26LV32ATM implements four independent CMOS receivers with TTL/LVCMOS-compatible outputs, each featuring differential input thresholds of ±200 mV and 35 mV hysteresis to reject noise near switching points. Its dual enable architecture (active-High EN and active-Low EN*) provides flexible system-level control over all four channels simultaneously.
It operates across −40°C to +85°C with guaranteed propagation delays of 6–35 ns (tPHL/tPLH), 10 ns max transition time, and 40 ns enable/disable timing - all validated under 15 pF load and 1.5V common-mode voltage per TIA/EIA-422-B test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0V to 3.6V - enables direct integration into 3.3V logic domains without level-shifting. |
| Common-Mode Range | ±10V at VID = 0.2V - supports long cable runs and ground-potential differences in industrial environments. |
| Receiver Skew | 4 ns max - ensures tight timing alignment across all four channels for parallel data bus applications. |
| Toggle Frequency | 32 MHz - supports high-throughput serial links such as encoder feedback or motion controller interfaces. |
| Power Dissipation | 30 mW typical - reduces thermal load in dense PCB layouts and extends battery life in portable test equipment. |
| ESD Tolerance | >6.5 kV HBM on receiver inputs - improves field reliability during handling and system integration. |
| Failsafe Behavior | RO = High when RI+/RI− are open - prevents undefined logic states in unterminated or disconnected lines. |
Pinout & Package
DS26LV32ATM is housed in a 16-pin SOIC package (Package Drawing D, JEDEC MS-012), with 1.27 mm pitch and standard surface-mount footprint compatible with automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 7, 10 | RI+ (Receiver Input +) | Differential positive input for Channels A–D; accepts ±14V absolute max input voltage. |
| 2, 5, 8, 11 | RI− (Receiver Input −) | Differential negative input for Channels A–D; referenced to RI+ for noise-rejecting signal detection. |
| 3, 6, 9, 12 | RO (Receiver Output) | TTL/LVCMOS-compatible output for Channels A–D; drives up to 6 mA sink/source. |
| 13 | EN | Active-High enable controlling all four receivers; logic high enables outputs, low forces TRI-STATE. |
| 14 | EN* | Active-Low enable controlling all four receivers; complements EN for flexible control interface design. |
| 15 | VCC | +3.3V supply pin; requires local 0.1 µF + 0.01 µF ceramic decoupling per TI recommendations. |
| 16 | GND | Ground reference for all receiver inputs, outputs, and enable logic. |
Key Features
| Feature | Design Value |
|---|---|
| Quad Differential Receiver | Four independent RS-422 receivers in one SOIC-16 package - reduces board space vs discrete solutions. |
| TRI-STATE Enable Control | Common EN/EN* pins allow simultaneous output disable across all channels - simplifies bus arbitration in multi-drop systems. |
| Open-Input Failsafe | Guaranteed high output when inputs are unconnected - eliminates need for external pull-up resistors in point-to-point links. |
| Low Power CMOS | 9 mA typical ICC at 3.3V - enables use in power-constrained PLC I/O modules and handheld diagnostics tools. |
| Interoperability with 5V RS-422 | Accepts 5V-differential signals while operating at 3.3V - allows mixed-voltage system upgrades without redesigning transmitters. |
Applications
| Industrial PLC Backplane | Motion Controller Feedback Interface |
|---|---|
Use Scenario: Receiving position/speed data from multiple servo drives over twisted-pair cabling in a modular PLC rack. IC Role / Device Role / Timing Role: Quad receiver converts four differential RS-422 encoder or resolver feedback streams into single-ended LVCMOS signals for FPGA or MCU capture. Use Value: 4 ns skew and 32 MHz toggle rate ensure synchronized sampling of multi-axis motion data with sub-microsecond timing integrity. | Use Scenario: Isolating and conditioning command signals sent from a central motion controller to distributed axis drives. IC Role / Device Role / Timing Role: Receives differential commands (e.g., direction, enable, step) across noisy factory floors where EMI exceeds 10 V/m. Use Value: ±10V common-mode range rejects ground-loop noise, while failsafe behavior prevents spurious axis activation during cable disconnects. |
| Factory Automation Data Hub | Test Equipment Serial Interface |
Use Scenario: Aggregating sensor data from multiple RS-422 field devices (temperature, pressure, flow meters) into a centralized gateway. IC Role / Device Role / Timing Role: Acts as a front-end receiver bank, converting asynchronous RS-422 streams into parallel digital inputs for microcontroller preprocessing. Use Value: Low 30 mW power consumption allows integration into fanless edge gateways; SOIC-16 footprint supports high-density sensor concentrator PCBs. | Use Scenario: Enabling high-speed bidirectional communication between benchtop test instruments (oscilloscopes, signal generators) and host PCs via RS-422 adapters. IC Role / Device Role / Timing Role: Receives configuration and trigger commands from PC-based software, driving precise timing-critical instrument functions. Use Value: 10 ns max transition time and 35 ns max propagation delay support deterministic sub-100 ns command-response latency in automated test systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad differential receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS26C32ATM | 5V operation only; no 3.3V support; identical pinout and function set. | Requires 5V supply rail; incompatible with 3.3V-only systems; higher static current (~20 mA). | Select when legacy 5V infrastructure exists and voltage translation is undesirable. |
| SN65LVDS32DR | LVDS input standard (not RS-422); 3.3V only; 3 ns skew; lower 3.5 mA ICC. | Designed for point-to-point LVDS links, not multidrop RS-422 buses; lacks failsafe and ±10V common-mode capability. | Select for ultra-low-power, short-distance, high-speed links where RS-422 interoperability is unnecessary. |
Compared with DS26C32ATM and SN65LVDS32DR, the DS26LV32ATM uniquely balances 3.3V operation, full RS-422 compliance, failsafe behavior, and industrial temperature range - making it the only choice for upgrading legacy 5V systems to modern low-voltage designs while retaining multidrop robustness.
Availability
DS26LV32ATM is available at Aetrix Electronics and suitable for industrial PLC backplanes, motion controller feedback interfaces, and factory automation data hubs requiring stable component supply and long-term manufacturability.
Supply support for DS26LV32ATM 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 technologies with over 90 years of innovation in industrial and automotive electronics.
The DS26LV32ATM belongs to TI's high-speed interface product line, engineered specifically for robust, low-power differential communication in harsh industrial environments where noise immunity and voltage scalability are critical.
FAQ
What is the operating temperature range for the DS26LV32ATM?
The DS26LV32ATM is rated for industrial operation from −40°C to +85°C. This range is explicitly specified in the Recommended Operating Conditions table of the official TI datasheet (SNLS128C), and applies to all electrical and switching characteristics unless otherwise noted. The DS26LV32ATM does not support extended military temperature grades - those are assigned to the DS26LV32AW variant, which is a separate part number.
Does the DS26LV32ATM support true RS-422 compliance?
Yes, the DS26LV32ATM fully conforms to TIA/EIA-422-B and ITU-T V.11 standards as stated in the device description and Electrical Characteristics section of the TI datasheet. It meets required parameters including ±10V common-mode input range, ±200 mV differential threshold, and 32 MHz toggle frequency - all verified under standardized test conditions with 15 pF load and 1.5V common-mode voltage.
How does the failsafe feature of the DS26LV32ATM work?
The DS26LV32ATM guarantees a logic-high output (RO) when both RI+ and RI− inputs are left open or unterminated, as confirmed in the Truth Table and Description sections of the datasheet. This behavior is implemented internally and requires no external components, preventing undefined states in scenarios like cable disconnection or idle bus conditions - a key reliability feature for industrial control systems.
Is the DS26LV32ATM pin-compatible with the DS26C32AT?
Yes, the DS26LV32ATM is explicitly documented as pin-compatible with the DS26C32AT in the Features section of the TI datasheet. Both share identical SOIC-16 pin assignments, function mapping, and mechanical footprint (Package Drawing D), enabling drop-in replacement in existing 5V designs - provided the 3.3V supply and updated enable logic timing are accommodated.
What decoupling capacitance is recommended for the DS26LV32ATM?
Texas Instruments specifies that bypass capacitors must be used on the VCC pin of the DS26LV32ATM: a 0.1 µF ceramic capacitor in parallel with a 0.01 µF ceramic capacitor, placed as close as possible to the power pin. Additionally, a 10 µF or greater solid tantalum or electrolytic capacitor should be located at the board's power entry point to suppress low-frequency noise and supply ripple.
DS26LV32ATM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Receiver
- Protocol:
- RS422, RS485
- Number of Drivers/Receivers:
- 0/4
- Duplex:
- -
- Receiver Hysteresis:
- 35 mV
- Data Rate:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DS26LV32ATM FAQ
1.How can I place an order for DS26LV32ATM through Aetrix?
Please submit a Request for Quotation (RFQ) for DS26LV32ATM 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 DS26LV32ATM reliable?
The price and inventory of DS26LV32ATM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS26LV32ATM is usually 5 days.
3.What payment methods are accepted for DS26LV32ATM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS26LV32ATM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS26LV32ATM?
DS26LV32ATM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS26LV32ATM 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 DS26LV32ATM?
For technical support, including DS26LV32ATM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS26LV32ATM requirements.
6.How does Aetrix verify that DS26LV32ATM is sourced from the original manufacturer or authorized distributors?
All DS26LV32ATM 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 DS26LV32ATM meets industry standards.
7.What is the process for return or replacement of DS26LV32ATM?
All DS26LV32ATM units undergo pre-shipment inspection (PSI). If there is an issue with DS26LV32ATM, 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 DS26LV32ATM part is unused and in its original packaging.
Return procedure for DS26LV32ATM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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