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Home > Products > Integrated Circuits (ICs) > Interface > Drivers, Receivers, Transceivers

Texas Instruments DS26C32ATM

Name: DS26C32ATM
Brand: Texas Instruments
SKU: DS26C32ATM
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DS26C32ATM

Manufacturer:: Texas Instruments

Category:: Drivers, Receivers, Transceivers

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: DS26C32ATM.pdf

Description:: IC TRANSCEIVER 0/4 16SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:4,393

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Product details

Overview

DS26C32ATM from Texas Instruments is a quad differential line receiver IC designed for RS-422 and RS-423 balanced digital data transmission systems, featuring ±0.2 V input sensitivity over ±7 V common-mode range, 19 ns typical propagation delay, and TRI-STATE outputs with 6 mA drive capability - deployed in industrial serial communication interfaces requiring noise-immune signal recovery.

For engineers reviewing the DS26C32ATM datasheet, DS26C32ATM pinout, DS26C32ATM application, or DS26C32ATM equivalent, key selection considerations include its SOIC-16 package, −40°C to +85°C operating temperature, CMOS-based low-power operation (23 mA max ICC), and compatibility with legacy LS-type receivers in multi-drop bus architectures.

Technical Context

The DS26C32ATM implements four independent high-speed differential receivers with internal pull-up/pull-down resistors to prevent floating outputs on unused channels. Its enable/disable control is shared across all four receivers, supporting bus-oriented system designs where channel grouping is required.

It meets EIA RS-422 electrical specifications with 200 mV minimum differential input threshold, 60 mV input hysteresis for noise rejection, and input tolerance up to ±14 V common-mode voltage - enabling robust operation in electrically noisy factory-floor or transportation environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - compatible with standard 5 V logic rails without regulation overhead
Differential Input Sensitivity	±200 mV - ensures reliable detection of small valid signals under cable attenuation or coupling loss
Propagation Delay	19 ns typical - supports data rates up to ~25 Mbps in point-to-point links
Input Hysteresis	60 mV - suppresses chatter on slow-rising or noisy differential inputs
Output Drive	±6 mA - sufficient to drive multiple LS-TTL loads or 50 Ω terminated lines
Operating Temperature	−40°C to +85°C - qualified for industrial-grade embedded control and automation equipment
TRI-STATE Leakage	±5 μA max - minimizes bus contention current when disabled

Pinout & Package

DS26C32ATM is housed in a 16-pin SOIC (Package Drawing D) surface-mount package measuring 10.3 mm × 6.5 mm × 2.3 mm, with gull-wing leads and RoHS-compliant CU SN finish (Level-1 moisture sensitivity).

Pin/Terminal	Circuit Role	Design Meaning
1, 4, 7, 10	Differential Input A−, B−, C−, D−	Inverting inputs for each of four receiver channels
2, 5, 8, 11	Differential Input A+, B+, C+, D+	Non-inverting inputs for each receiver channel
3, 6, 9, 12	Receiver Output YA, YB, YC, YD	Active-high TTL/CMOS-compatible outputs with TRI-STATE control
13	Enable Input (EN)	Active-high enable controlling all four outputs simultaneously
14	GND	Signal ground reference for all inputs and outputs
16	VCC	+5 V supply rail; powers internal CMOS circuitry and output drivers

Key Features

Feature	Design Value
CMOS architecture	Reduces quiescent supply current to 23 mA max - cuts thermal load in dense PCB layouts
±7 V common-mode input range	Enables use with long unshielded cables subject to ground potential differences up to 14 Vpp
Internal bias resistors	Eliminates need for external pull-ups/downs on unused channels - simplifies board layout and BOM
TRI-STATE outputs	Allows direct connection to shared data buses without external isolation logic or bus transceivers
0 V tolerant inputs	Permits safe operation during power sequencing - inputs remain non-loading even when VCC = 0 V

Applications

Industrial PLC Backplane	Point-of-Sale Terminal Interface
Use Scenario: RS-422 differential signaling between CPU module and I/O expansion cards in modular programmable logic controllers. IC Role / Device Role / Timing Role: Quad receiver recovers four independent differential data streams from backplane traces, converting them to single-ended TTL levels for FPGA or microcontroller input. Use Value: 60 mV hysteresis and ±7 V common-mode range reject ground-loop noise across chassis segments, ensuring error-free communication at 10 Mbps over 15 m traces.	Use Scenario: Interfacing barcode scanners and receipt printers via RS-422 to embedded ARM-based POS terminals. IC Role / Device Role / Timing Role: Receives synchronized command and status data from peripheral devices using differential pairs to overcome EMI in retail environments. Use Value: 19 ns propagation delay enables tight timing margins for real-time response; TRI-STATE outputs allow dynamic bus sharing among multiple peripherals.
Railway Signaling Controller	Medical Diagnostic Equipment Link
Use Scenario: Data acquisition from distributed track-side sensors connected via shielded twisted-pair cabling to central signaling logic units. IC Role / Device Role / Timing Role: Converts four isolated RS-422 sensor channels into parallel CMOS signals for safety-critical monitoring logic. Use Value: −40°C to +85°C rating and ±14 V absolute maximum common-mode withstand support deployment in outdoor cabinets exposed to wide ambient swings and lightning-induced surges.	Use Scenario: High-integrity serial link between ultrasound imaging processor and front-end analog acquisition modules. IC Role / Device Role / Timing Role: Recovers time-synchronized echo data streams from multiple transducer arrays while rejecting RF interference from adjacent RF subsystems. Use Value: 200 mV differential sensitivity ensures reliable detection of weak return signals after long cable runs; CMOS design minimizes self-generated noise coupling into analog sections.

Industrial PLC Backplane

Point-of-Sale Terminal Interface

Use Scenario: RS-422 differential signaling between CPU module and I/O expansion cards in modular programmable logic controllers.

IC Role / Device Role / Timing Role: Quad receiver recovers four independent differential data streams from backplane traces, converting them to single-ended TTL levels for FPGA or microcontroller input.

Use Value: 60 mV hysteresis and ±7 V common-mode range reject ground-loop noise across chassis segments, ensuring error-free communication at 10 Mbps over 15 m traces.

Use Scenario: Interfacing barcode scanners and receipt printers via RS-422 to embedded ARM-based POS terminals.

IC Role / Device Role / Timing Role: Receives synchronized command and status data from peripheral devices using differential pairs to overcome EMI in retail environments.

Use Value: 19 ns propagation delay enables tight timing margins for real-time response; TRI-STATE outputs allow dynamic bus sharing among multiple peripherals.

Railway Signaling Controller

Medical Diagnostic Equipment Link

Use Scenario: Data acquisition from distributed track-side sensors connected via shielded twisted-pair cabling to central signaling logic units.

IC Role / Device Role / Timing Role: Converts four isolated RS-422 sensor channels into parallel CMOS signals for safety-critical monitoring logic.

Use Value: −40°C to +85°C rating and ±14 V absolute maximum common-mode withstand support deployment in outdoor cabinets exposed to wide ambient swings and lightning-induced surges.

Use Scenario: High-integrity serial link between ultrasound imaging processor and front-end analog acquisition modules.

IC Role / Device Role / Timing Role: Recovers time-synchronized echo data streams from multiple transducer arrays while rejecting RF interference from adjacent RF subsystems.

Use Value: 200 mV differential sensitivity ensures reliable detection of weak return signals after long cable runs; CMOS design minimizes self-generated noise coupling into analog sections.

Equivalent & Alternatives

The following parts are listed as comparable options for similar differential receiver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN65LBC179DR	Single-channel RS-485/RS-422 receiver; 12 Mbps max data rate; no integrated enable control	Requires four separate devices and external logic for quad-channel enable coordination	Preferred when space allows discrete channel scaling or when RS-485 half-duplex topology is needed
DS26LS32ACN	Bipolar implementation; higher ICC (35 mA); identical pinout and logic function	Higher power dissipation limits density in thermally constrained enclosures	Used where legacy LS-family compatibility is mandatory and power budget permits

Compared with SN65LBC179DR and DS26LS32ACN, the DS26C32ATM delivers quad integration in one SOIC-16 package with lower power consumption and built-in channel enable - reducing component count and PCB area while maintaining full RS-422 compliance and industrial temperature operation.

Availability

DS26C32ATM is available at Aetrix Electronics and suitable for industrial automation, transportation control systems, and medical diagnostic equipment requiring stable component supply across extended product lifecycles.

Supply support for DS26C32ATM 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.

The DS26C32ATM belongs to TI's legacy interface IC portfolio, engineered specifically for robust, low-power differential data reception in harsh electromagnetic environments - targeting long-cable, multi-drop, and noise-prone serial infrastructure.

FAQ

What is the operating temperature range for DS26C32ATM?

The DS26C32ATM is rated for operation from −40°C to +85°C, making it suitable for industrial environments such as factory automation, railway signaling, and outdoor kiosk systems. This range is confirmed in the "Operating Conditions" table of the official SNLS382C datasheet, and applies specifically to the DS26C32ATM variant with SOIC packaging. The DS26C32ATM maintains full RS-422 compliance across this entire span.

Does DS26C32ATM support true RS-422 compliance?

Yes, the DS26C32ATM meets EIA RS-422 requirements including ±200 mV differential input sensitivity, ±7 V common-mode input range, and 60 mV input hysteresis - all verified in the "DC Electrical Characteristics" section of the SNLS382C datasheet. It also supports RS-423 unbalanced operation and is explicitly listed as compliant with Federal Standards 1020 and 1030.

Is DS26C32ATM pin-compatible with DS26LS32A?

Yes, the DS26C32ATM is pin-compatible with the DS26LS32A and AM26LS32, as stated in the "Features" section of the SNLS382C datasheet. Both share identical SOIC-16 pin assignments, truth table behavior, and enable/control logic - allowing drop-in replacement where CMOS-level power savings are beneficial without modifying PCB layout.

What is the maximum data rate supported by DS26C32ATM?

The DS26C32ATM supports data rates up to approximately 25 Mbps, derived from its 19 ns typical propagation delay (tPLH/tPHL) and 9 ns typical rise/fall times under 50 pF load conditions. This performance is validated in the "AC Electrical Characteristics" table of SNLS382C and assumes proper termination and controlled-impedance routing per RS-422 guidelines.

Can DS26C32ATM inputs be left unconnected?

Yes - the DS26C32ATM includes internal pull-up and pull-down resistors on each differential input pair, preventing output oscillation on unused channels. This eliminates the need for external biasing components and is documented in the "Features" and "Truth Table" sections of the SNLS382C datasheet. Unused inputs may be left floating without risk of metastability or excessive current draw.

DS26C32ATM 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, RS423

Number of Drivers/Receivers:: 0/4

Duplex:: -

Receiver Hysteresis:: 60 mV

Data Rate:: -

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

DS26C32ATM FAQ

1.How can I place an order for DS26C32ATM through Aetrix?

Please submit a Request for Quotation (RFQ) for DS26C32ATM 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 DS26C32ATM reliable?

The price and inventory of DS26C32ATM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS26C32ATM is usually 5 days.

3.What payment methods are accepted for DS26C32ATM?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS26C32ATM transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DS26C32ATM?

DS26C32ATM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DS26C32ATM 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 DS26C32ATM?

For technical support, including DS26C32ATM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS26C32ATM requirements.

6.How does Aetrix verify that DS26C32ATM is sourced from the original manufacturer or authorized distributors?

All DS26C32ATM 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 DS26C32ATM meets industry standards.

7.What is the process for return or replacement of DS26C32ATM?

All DS26C32ATM units undergo pre-shipment inspection (PSI). If there is an issue with DS26C32ATM, 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 DS26C32ATM part is unused and in its original packaging.

Return procedure for DS26C32ATM:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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