AM26LS32ACNS Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The AM26LS32ACNS is a quad differential line receiver meeting EIA-422-B, EIA-423-B, V.10, and V.11 standards, featuring 4 Schmitt-trigger inputs for high noise immunity in long-distance data communications. It operates with input differential thresholds as low as 200 mV and is packaged in a 16-pin SOIC for compact board designs. Available from major distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- AM26LS32ACNS Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quad differential Schmitt-trigger line receiver compliant with EIA-422-B, EIA-423-B, ITU V.10, and V.11 for industrial serial communication
- 200 mV differential input threshold with hysteresis providing high noise immunity on cable runs up to 1200 m
- Three-state outputs with enable control supporting bus-connected multi-receiver configurations
- 16-pin SOIC package compatible with automated SMT assembly for high-volume industrial communication boards
Applications
The AM26LS32ACNS is used in industrial fieldbus and machine-control systems where RS-422 or RS-423 differential signaling is required for reliable data transmission over distances up to 1200 m at baud rates to 100 kbps. It serves as the receive-side interface in PLCs, CNC controllers, and SCADA equipment connected to long cable runs in electrically noisy factory environments. It is also applied in test and measurement instruments requiring V.11-compliant balanced receivers for synchronous serial data acquisition.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE RECEIVER |
| Interface Standard | EIA-422-B; TIA-422-B; EIA-423-B; TIA-423-B; V.10; V.11 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 4 |
| Output Low Current-Max | 0.008A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receive Delay-Max | 35ns |
| Receiver Number of Bits | 4 |
| Supply Current-Max | 70mA |
| Supply Voltage-Max | 5.25V |
| Supply Voltage-Min | 4.75V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mainland China, Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for AM26LS32ACNS:
Receiver, 1 Func, 4 Driver, 4 Rcvr, TTL, PDSO16
Receiver, 1 Func, 4 Driver, 4 Rcvr, TTL, PDSO16
Frequently Asked Questions
At what maximum data rate can AM26LS32ACNS reliably receive EIA-422 differential signals over long cables?
AM26LS32ACNS supports data rates up to 10 Mbps over short cables and maintains reliable reception at 100 kbps over 1200 m cable runs as specified by EIA-422-B. At longer distances, the cable capacitance limits bandwidth, so the distance-rate product of approximately 100 Mbps·m provides a practical engineering guideline for cable and speed selection.
How does the Schmitt-trigger input on AM26LS32ACNS improve noise immunity on industrial cable installations?
The differential Schmitt-trigger input of AM26LS32ACNS features a minimum hysteresis of 50 mV above the 200 mV differential threshold, so signals must swing from below 200 mV to above 250 mV to toggle the output. This prevents multiple output transitions from common-mode noise spikes below 50 mV amplitude, which is critical on unshielded twisted-pair cables in VFD-motor or relay-switching environments.
How should AM26LS32ACNS outputs be connected when building a multi-drop EIA-422 bus receiver system?
AM26LS32ACNS provides three-state outputs controlled by active-low enable pins. In a multi-drop bus with up to 10 receivers, each device's enable is asserted individually by a decode circuit so only one receiver drives the CMOS data bus at a time. This prevents bus contention while keeping all 4 receiver channels within each IC simultaneously active for their respective serial channels.
What is the output sink current specification for AM26LS32ACNS, and what loads can it drive directly?
AM26LS32ACNS sinks up to 8 mA per output at VOL. This current is sufficient to drive standard TTL and CMOS logic inputs with 10-kohm pull-up resistors, UART RX pins on microcontrollers, or optocoupler LED inputs through a 390-ohm series resistor at 3.3 V supply, without requiring an additional buffer or driver stage.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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