Part A
AM26LS32AIDR
德州儀器
- Lifecycle
- Active
- Stock
- 1798 件
- Package
- SOIC-16
- Series
- 介面-驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The AM26LS32AIDR and AM26LS32ACNSRG4 are functionally equivalent quad differential line receivers sharing the same core architecture, logic family, and electrical characteristics, making them viable substitutes in most designs. The primary distinction lies in package format and operating temperature range, so designers should confirm board footprint compatibility and verify thermal margin for the target application before committing to a drop-in substitution.
Function and Logic Family
High match
Package Type
Validation required
Operating Temperature Range
Validation required
Supply Voltage and I/O Characteristics
High match
Parts at a glance
Part B
AM26LS32ACNSRG4
德州儀器
- Lifecycle
- Active
- Stock
- 7377 件
- Package
- SOIC-16
- Series
- 介面-驅動器、接收器、收發器
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 | AM26LS32ACNSRG4 | 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 | Matching receiver count ensures the same number of differential channels can be handled in the target design. |
| Supply Voltage (VCC) | 5 V (4.75 V to 5.25 V) | 5 V (4.75 V to 5.25 V) | Identical supply requirements mean the same power rail can be used without redesign. |
| Input Type | Differential | Differential | Differential inputs provide common-mode noise rejection and are required for balanced transmission standards. |
| Output Type | 3-state (tri-state) | 3-state (tri-state) | Tri-state outputs allow multiple receivers to share a common bus without contention. |
| Operating Temperature Range | -40°C to +85°C | 0°C to +70°C | The wider industrial temperature range of the AIDR version makes it suitable for harsher environments, while the CNSRG4 is limited to commercial temperature conditions. |
| Package / Mounting | 16-SOIC (surface mount) | 16-SO (surface mount) | Both are surface-mount SOIC-type packages, but exact package outline and land pattern should be confirmed for drop-in PCB compatibility. |
| Packaging / Ordering Suffix | Tape and reel (R suffix) | Tape and reel (R suffix, G4 lead-free) | Both are supplied in tape-and-reel for automated assembly; the G4 suffix indicates lead-free (RoHS) construction, which may matter for compliance requirements. |
| Input Sensitivity | ±200 mV | ±200 mV | Identical input sensitivity ensures the same minimum differential signal level is reliably detected. |
| Input Common-Mode Range | -7 V to +7 V | -7 V to +7 V | A wide common-mode range provides robustness against ground potential differences between connected nodes. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AM26LS32AIDR | AM26LS32ACNSRG4 |
|---|---|---|
| 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 AM26LS32ACNSRG4?
Both are quadruple differential line receivers from Texas Instruments designed for balanced or unbalanced digital data transmission. They are members of the AM26LS32A family, which meets the requirements of TIA/EIA-422-B and TIA/EIA-423-B, and are functionally equivalent to the AM26LS32 but with improved input sensitivity and input hysteresis.
What is the main difference between the AM26LS32AIDR and AM26LS32ACNSRG4?
The primary difference is the package and temperature grade. The AM26LS32AIDR is supplied in an 16-pin SOIC package (D suffix) and is specified over the industrial temperature range of -40°C to 85°C. The AM26LS32ACNSRG4 is supplied in a 16-pin SOP package (NS suffix) and is specified over the commercial temperature range of 0°C to 70°C. The "G4" suffix indicates Pb-free/RoHS-compliant green molding compound.
Are the AM26LS32AIDR and AM26LS32ACNSRG4 electrically identical?
Yes, both devices share the same electrical characteristics from the AM26LS32A datasheet, including ±7 V common-mode range, 200 mV input sensitivity, and 50 mV typical input hysteresis. The differences are limited to package type, temperature grade, and the Pb-free green compound designation on the G4 variant.
Can the AM26LS32AIDR and AM26LS32ACNSRG4 be used interchangeably in a design?
They are functionally interchangeable only if the application's operating temperature stays within 0°C to 70°C and the PCB footprint supports the respective package. The AM26LS32AIDR's SOIC (D) and the AM26LS32ACNSRG4's SOP (NS) packages have different body widths and lead pitches, so the PCB land pattern must be verified before substitution.
What supply voltage do the AM26LS32AIDR and AM26LS32ACNSRG4 require?
Both devices operate from a single 5 V supply (nominal), with the datasheet specifying a recommended operating supply voltage of 4.75 V to 5.25 V. They are not specified for 3.3 V operation.
What are the key AC and DC specifications of these receivers?
Per the AM26LS32A datasheet, both devices feature a typical propagation delay of approximately 17 ns, input sensitivity of ±200 mV, input hysteresis of 50 mV typical, and a common-mode input voltage range of -7 V to +7 V. Outputs are 3-state TTL-compatible with a typical output high voltage of 2.7 V at 4 mA.
Are the AM26LS32AIDR and AM26LS32ACNSRG4 RoHS compliant?
The AM26LS32ACNSRG4 carries the "G4" suffix, which denotes Pb-free (RoHS-compliant) green molding compound per Texas Instruments' green material designation. The AM26LS32AIDR is also available in Pb-free/RoHS-compliant ordering options; designers should confirm the specific orderable part number's environmental status against the manufacturer's product page before finalizing.
What applications are these devices typically used in?
Both receivers are intended for balanced and unbalanced digital data transmission in industrial, telecom, and instrumentation systems, including RS-422/RS-423 interfaces, point-to-point and multidrop bus receivers, and general-purpose differential signal reception. They are not specified for RS-485 multipoint operation.