Part A
AM26LV32IDR
Texas Instruments
- Lifecycle
- Active
- Stock
- 7519 PCS
- Package
- SOIC-16
- Series
- Interface - Condutores, Receptores, Transceivers
Replacement verdict
Compatible functional replacement candidate
The AM26LV32IDR and AM26LS32AIDE4 are functionally compatible quad differential line receivers with matching pinout, channel count, and supply voltage range. The AM26LV32IDR offers a faster maximum signaling rate and a wider operating temperature range, making it a viable drop-in replacement in most 3.3 V and 5 V differential bus applications, provided the higher switching speed and thermal margins are acceptable for the target design.
Channel Count
High match
Supply Voltage Range
High match
Package Type
High match
Maximum Signaling Rate
Validation required
Parts at a glance
Part B
AM26LS32AIDE4
Texas Instruments
- Lifecycle
- Active
- Stock
- 8173 PCS
- Package
- SOIC-16
- Series
- Interface - Condutores, Receptores, Transceivers
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AM26LV32IDR | AM26LS32AIDE4 | Why it matters |
|---|---|---|---|
| Supply Voltage (Vcc) | 3.0 V to 3.6 V | 4.75 V to 5.25 V | Determines the logic and bus voltage domain; a 3.3 V device cannot directly replace a 5 V device without level shifting or supply changes. |
| Supply Current (typical) | 15 mA | 70 mA | Affects power budget and thermal design; the lower-current LV device is preferable in power-sensitive systems. |
| Input Common-Mode Voltage Range | -0.3 V to 5.5 V | -7 V to 7 V | Defines the allowable ground potential difference and noise margin between driver and receiver; the wider range of the LS32A improves robustness in noisy or long-cable links. |
| Differential Input Threshold | ±0.2 V | ±0.2 V | Sets the minimum differential signal amplitude required for reliable detection; identical thresholds support similar noise immunity. |
| Propagation Delay (typical) | 16 ns | 17 ns | Influences maximum data rate and timing margin; nearly identical delays allow similar signaling speeds. |
| Output Type | 3-state | 3-state | Enables bus sharing and multiplexing; both devices support high-impedance output states for multi-drop applications. |
| Number of Receivers | 4 | 4 | Determines how many differential channels can be handled per package; matching counts support equivalent system architectures. |
| Operating Temperature Range | -40 °C to 85 °C | -40 °C to 85 °C | Ensures reliable operation across industrial temperature extremes; identical ranges allow use in the same environments. |
| Package | SOIC-16 | SOIC-16 | Affects PCB footprint and assembly; identical packages allow drop-in replacement without layout changes. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AM26LV32IDR | AM26LS32AIDE4 |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Discontinued at Digi-Key |
| Type | Receiver | Receiver |
| Protocol | RS422, RS485 | RS422, RS423 |
| Number of Drivers/Receivers | 0/4 | 0/4 |
| Receiver Hysteresis | 50 mV | 50 mV |
| Voltage - Supply | 3V ~ 3.6V | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the main differences between the AM26LV32IDR and the AM26LS32AIDE4?
The AM26LV32IDR is a low-voltage quad differential line receiver optimized for 3.3 V supply operation, while the AM26LS32AIDE4 is a quad differential line receiver designed for 5 V supply operation. The AM26LV32IDR features a common-mode voltage range of -0.3 V to 5.5 V and is compatible with TIA/EIA-422-B and TIA/EIA-485-A standards. The AM26LS32AIDE4 meets TIA/EIA-422-B and ITU Recommendation V.11 requirements with a common-mode range of -7 V to 7 V. The AM26LV32IDR is supplied in an SOIC-16 package, and the AM26LS32AIDE4 is supplied in an SOIC-16 package with the "E4" suffix indicating Pb-free/RoHS-compliant construction.
Can the AM26LV32IDR and AM26LS32AIDE4 be used interchangeably in an existing design?
No, they are not direct drop-in replacements. The AM26LV32IDR operates from a 3.3 V nominal supply, whereas the AM26LS32AIDE4 requires a 5 V nominal supply. Supply voltage differences, input common-mode ranges, and output voltage levels must be validated against the target design requirements before any substitution. Always consult the respective manufacturer datasheets to confirm compatibility.
What supply voltage does each device require?
The AM26LV32IDR operates from a single 3.3 V supply (typically 3.0 V to 3.6 V). The AM26LS32AIDE4 operates from a single 5 V supply (typically 4.75 V to 5.25 V). These supply requirements are not interchangeable without level shifting or regulator changes.
Do both devices meet the same industry standards?
The AM26LV32IDR meets TIA/EIA-422-B and TIA/EIA-485-A requirements. The AM26LS32AIDE4 meets TIA/EIA-422-B and ITU Recommendation V.11. While both are suitable for balanced differential data transmission, the specific standard compliance differs, and designers should verify that the chosen device satisfies the applicable system-level requirements.
What is the input common-mode voltage range for each device?
The AM26LV32IDR has a common-mode voltage range of -0.3 V to 5.5 V. The AM26LS32AIDE4 has a common-mode voltage range of -7 V to 7 V. The wider common-mode range of the AM26LS32AIDE4 makes it more suitable for applications with larger ground potential differences between driver and receiver.
Are the pinouts of the AM26LV32IDR and AM26LS32AIDE4 identical?
Both devices are offered in 16-pin SOIC packages and share a similar quad differential line receiver pinout. However, designers must verify pin functions and any enable or control pin differences against the official datasheets before considering a layout-compatible substitution. Package suffix differences (IDR vs IDE4) also indicate different ordering and environmental specifications.
What does the "E4" suffix on the AM26LS32AIDE4 indicate?
The "E4" suffix on the AM26LS32AIDE4 indicates that the device is supplied in a Pb-free (lead-free) and RoHS-compliant package, as defined by the manufacturer's ordering nomenclature. The AM26LV32IDR is also available in RoHS-compliant versions, but the specific suffix conventions differ between the two product families.
Which device is better suited for low-power or battery-operated designs?
The AM26LV32IDR is generally better suited for low-power or battery-operated designs because it operates from a 3.3 V supply, which typically results in lower power consumption compared to 5 V operation. The AM26LS32AIDE4, operating at 5 V, is more appropriate for legacy or industrial systems where a 5 V rail is already available. Actual power consumption should be verified from the respective datasheets.