Part A
AM26LS32AID
德州儀器
- Lifecycle
- Active
- Stock
- 1948 件
- Package
- SOIC-16
- Series
- 介面-驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The AM26LS32AID and AM26LS32ACDG4 are functionally equivalent quad differential line receivers sharing the same core device architecture, logic family, and electrical characteristics. Both parts are interchangeable for the majority of RS-422/RS-423 receiver applications, with the primary distinction being the package and ordering suffix rather than functional capability. Designers should confirm the specific package and temperature-grade requirements against their board layout and application environment before final substitution.
Function and Logic Family
High match
Electrical Characteristics
High match
Package Type
Validation required
Operating Temperature Range
Validation required
Parts at a glance
Part B
AM26LS32ACDG4
德州儀器
- Lifecycle
- Active
- Stock
- 5692 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 | AM26LS32AID | AM26LS32ACDG4 | 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 receiver 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 (Typical) | 5 V | 5 V | Both operate from the same nominal 5 V supply, so power rail requirements are compatible. |
| Receiver Input Type | Differential | Differential | Differential inputs provide common-mode noise immunity and are required for RS-422/RS-485 style signaling. |
| Output Type | 3-state | 3-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 industrial-grade temperature range of the AID version supports harsher environments, while the CDG4 version is limited to commercial temperatures. |
| Package / Mounting | 16-SOIC (surface mount) | 16-SOIC (surface mount) | Package and mounting style must match the PCB footprint for a drop-in replacement. |
| Qualification / Grade | Industrial grade | Commercial grade | Grade affects environmental tolerance and reliability; industrial parts are preferred for wide-temperature or rugged applications. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AM26LS32AID | AM26LS32ACDG4 |
|---|---|---|
| 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 AM26LS32AID and AM26LS32ACDG4?
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 or exceeds the requirements of ANSI TIA/EIA-422-B and ITU Recommendation V.11, and feature three-state outputs and a common enable function.
What is the difference between the AM26LS32AID and AM26LS32ACDG4?
The primary difference is the package and temperature grade. The AM26LS32AID is supplied in a 16-pin SOIC (D) package specified over the -40°C to 85°C industrial temperature range. The AM26LS32ACDG4 is supplied in a 16-pin SOIC (D) package with the "G4" suffix denoting Pb-free/RoHS-compliant green molding compound, and the "C" prefix indicating the commercial temperature grade of 0°C to 70°C.
Are the AM26LS32AID and AM26LS32ACDG4 electrically identical?
Yes. Both devices share the same electrical specifications for the AM26LS32A receiver family, including input sensitivity of ±200 mV, input common-mode voltage range of -7 V to +7 V, and 3-state output capability. The differences are limited to temperature grade and Pb-free/RoHS status, not core electrical performance.
Can the AM26LS32ACDG4 be used as a drop-in replacement for the AM26LS32AID?
Functionally and pinout-wise, yes, since both use the same 16-pin SOIC (D) package and identical pin assignments. However, the AM26LS32ACDG4 is rated only for 0°C to 70°C, so it must not be substituted in applications requiring the -40°C to 85°C industrial range of the AM26LS32AID. The substitution must be validated against the target design's temperature requirements.
What is the difference between the "I" and "C" temperature suffixes?
The "I" suffix in AM26LS32AID denotes the industrial temperature grade, specified over -40°C to 85°C. The "C" suffix in AM26LS32ACDG4 denotes the commercial temperature grade, specified over 0°C to 70°C. Both grades are characterized by Texas Instruments in the respective device datasheets.
What does the "G4" suffix mean on the AM26LS32ACDG4?
The "G4" suffix is a Texas Instruments ordering designator indicating that the device is manufactured with Pb-free (RoHS-compliant) termination finish and green molding compound. It does not change the electrical function of the receiver; it only identifies the environmental compliance and packaging material status.
What are the key receiver specifications shared by both devices?
Both devices provide four independent differential line receivers with input sensitivity of ±200 mV over the common-mode range of -7 V to +7 V, input hysteresis of typically 50 mV, and three-state outputs controlled by a common enable pin. They are specified for balanced data transmission per TIA/EIA-422-B and V.11 and are compatible with TTL and CMOS logic levels on the outputs.
Which device should be selected for a design with RoHS compliance requirements?
The AM26LS32ACDG4 carries the "G4" Pb-free/RoHS-compliant designator and is the appropriate choice when RoHS compliance is mandated, provided the 0°C to 70°C commercial temperature range is acceptable. If the design also requires the -40°C to 85°C industrial range, the corresponding Pb-free industrial-grade ordering variant of the AM26LS32A family should be selected instead.