Part A
AM26LS32AIDR
Texas Instruments
- Lifecycle
- Active
- Stock
- 1798 PCS
- Package
- SOIC-16
- Series
- Interfaces - pilotes, récepteurs, émetteurs - récepteurs
Replacement verdict
Compatible functional replacement candidate
The AM26LS32AIDR and AM26LS32ACDE4 are functionally equivalent quad differential line receivers sharing the same RS-422/RS-423 receiver architecture, supply voltage range, and SOIC-16 footprint, making them viable substitutes in most designs. The primary distinction is the operating temperature range, so the AM26LS32ACDE4 should be validated against the target application's thermal requirements before substitution.
Receiver Function and Channel Count
High match
Supply Voltage Range
High match
Package and Pinout
High match
Operating Temperature Range
Validation required
Parts at a glance
Part B
AM26LS32ACDE4
Texas Instruments
- Lifecycle
- Active
- Stock
- 9006 PCS
- Package
- SOIC-16
- Series
- Interfaces - pilotes, récepteurs, émetteurs - récepteurs
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AM26LS32AIDR | AM26LS32ACDE4 | Why it matters |
|---|---|---|---|
| Function | Quadruple differential line receiver | Quadruple differential line receiver | Both devices perform the same core function, so they are functionally interchangeable in RS-422/RS-423/RS-485 receive applications. |
| Number of Receivers | 4 | 4 | Receiver count determines how many differential channels can be handled per package; identical count means no change to channel capacity. |
| Supply Voltage (VCC) | 5 V (4.75 V to 5.25 V) | 5 V (4.75 V to 5.25 V) | Both require the same 5 V nominal supply, so the power rail design does not need to change. |
| Input Type | Differential | Differential | Differential inputs provide common-mode noise immunity; matching input type ensures compatibility with the same bus signaling. |
| Output Type | 3-state (tri-state) | 3-state (tri-state) | Tri-state outputs allow bus sharing; identical output type preserves the ability to multiplex onto a shared data bus. |
| Operating Temperature Range | -40°C to +85°C (industrial) | 0°C to +70°C (commercial) | The wider industrial range of the AIDR variant supports harsher environments, so substitution in industrial or outdoor designs may not be acceptable with the commercial-grade CDE4. |
| Package / Mounting | 16-SOIC (surface mount, tape and reel) | 16-SOIC (surface mount, tube/rail) | Both use the same 16-SOIC footprint, but packaging format (reel vs tube) affects automated assembly handling and inventory form. |
| Pin Count | 16 | 16 | Identical pin count and SOIC pinout allow drop-in PCB compatibility without layout changes. |
| RoHS Compliance | RoHS compliant | RoHS compliant | Both meet RoHS, so environmental/regulatory compliance is preserved when substituting. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AM26LS32AIDR | AM26LS32ACDE4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Discontinued at Digi-Key |
| Type | Receiver | Receiver |
| Protocol | RS422, RS423 | RS422, RS423 |
| Number of Drivers/Receivers | 0/4 | 0/4 |
| Receiver Hysteresis | 50 mV | 50 mV |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the AM26LS32AIDR and AM26LS32ACDE4 devices?
Both are AM26LS32A quad differential line receivers from Texas Instruments, designed to meet the requirements of TIA/EIA-422-B and TIA/EIA-423-B, as well as ITU Recommendations V.10 and V.11. They are used to receive balanced differential signals in industrial and communication systems.
What is the difference between the AM26LS32AIDR and AM26LS32ACDE4?
The primary difference is the package and ordering suffix. The AM26LS32AIDR is supplied in a 16-pin SOIC package (D suffix) on a large tape-and-reel (R suffix), while the AM26LS32ACDE4 is supplied in a 16-pin SOIC package (D suffix) in a tube (E4 suffix). Both use the same die and share identical electrical specifications.
Are the AM26LS32AIDR and AM26LS32ACDE4 electrically interchangeable?
Yes. Both devices are the same AM26LS32A quad differential line receiver and share identical electrical characteristics, including input sensitivity, propagation delay, and supply voltage range. They differ only in packaging and shipping format, so they are electrically interchangeable in a given design.
What supply voltage do the AM26LS32AIDR and AM26LS32ACDE4 require?
Both devices operate from a single 5 V supply (nominal), with a recommended operating supply voltage range of 4.75 V to 5.25 V, consistent with the AM26LS32A datasheet.
What is the operating temperature range for these devices?
The AM26LS32AIDR and AM26LS32ACDE4 are specified for the industrial temperature range of -40°C to +85°C, as indicated by the "I" in the device name and the AM26LS32A datasheet.
Can the AM26LS32AIDR and AM26LS32ACDE4 be used interchangeably in a PCB layout?
Yes, because both are offered in the same 16-pin SOIC (D) package with identical pinout and footprint. The only practical difference is the delivery format (tape-and-reel vs. tube), so either can be placed on the same PCB land pattern.
What are the typical applications for the AM26LS32AIDR and AM26LS32ACDE4?
These quad differential line receivers are typically used in balanced differential data transmission systems, industrial control, motor encoder interfaces, and communication equipment that require TIA/EIA-422-B and TIA/EIA-423-B compliant reception.