Part A
AM26LV32EIDR
德州儀器
- Lifecycle
- Active
- Stock
- 2110 件
- Package
- SOIC-16
- Series
- 介面-驅動器、接收器、收發器
Replacement verdict
Compatible functional replacement candidate
The AM26LV32EIDR and AM26LS32ACDE4 are both quad differential line receivers in SOIC-16 packages with matching pinouts and 3.3 V/5 V supply compatibility, making the AM26LV32EIDR a viable functional replacement candidate for the AM26LS32ACDE4 in most designs. Designers should validate input common-mode range, fail-safe behavior, and signaling-rate margins against the target application before final qualification.
Function and Channel Count
High match
Package and Pinout
High match
Supply Voltage Range
Validation required
Input Common-Mode and Fail-Safe Behavior
Validation required
Parts at a glance
Part B
AM26LS32ACDE4
德州儀器
- Lifecycle
- Active
- Stock
- 9006 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 | AM26LV32EIDR | AM26LS32ACDE4 | Why it matters |
|---|---|---|---|
| Supply Voltage (Vcc) | 3.0 V to 3.6 V | 4.75 V to 5.25 V | The two devices operate on different supply rails (3.3 V vs 5 V), so they are not drop-in replacements without adjusting the power supply. |
| Logic Family / Signaling Standard | Low-voltage RS-422 (3.3 V) | RS-422 / RS-423 (5 V) | Different logic families affect compatibility with surrounding 3.3 V or 5 V logic and the supported differential signaling standards. |
| Number of Receivers | 4 | 4 | Both provide four independent differential receivers, so channel count is functionally equivalent. |
| Input Common-Mode Voltage Range | -0.3 V to 5.5 V (approx.) | -7 V to +7 V | A wider common-mode range improves noise immunity and interoperability in harsh or long-cable RS-422 networks. |
| Maximum Data Rate | Up to 32 Mbps (approx.) | Up to 10 Mbps (approx.) | The maximum signaling rate determines whether the part can support high-speed serial links in the target application. |
| Propagation Delay | ~10 ns (typ.) | ~20 ns (typ.) | Lower propagation delay supports higher-speed operation and tighter timing margins in the system. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Both cover the industrial temperature range, so environmental tolerance is equivalent. |
| Package / Pin Count | SOIC-16 (16 pins) | SOIC-16 (16 pins) | Matching package and pin count allows the same PCB footprint, though electrical differences still prevent direct substitution. |
| ESD / Fail-Safe Feature | Enhanced ESD protection (E-suffix) | Standard ESD protection | Enhanced ESD robustness improves reliability in environments with frequent handling or transient exposure. |
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 | AM26LV32EIDR | AM26LS32ACDE4 |
|---|---|---|
| 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 | 35 mV | 50 mV |
| Voltage - Supply | 3V ~ 3.6V | 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 primary functional differences between the AM26LV32EIDR and the AM26LS32ACDE4?
The AM26LV32EIDR is a low-voltage quad differential line receiver designed for 3.3 V operation, while the AM26LS32ACDE4 is a quad differential line receiver designed for 5 V operation. The AM26LV32EIDR features a wider common-mode input voltage range and is optimized for low-power, low-voltage systems, whereas the AM26LS32ACDE4 is a legacy 5 V device with standard TTL-compatible outputs.
Are the AM26LV32EIDR and AM26LS32ACDE4 pin-to-pin compatible?
Yes, both devices are offered in a 16-pin SOIC package (D suffix) and share the same pinout for the quad receiver functions, including inputs, outputs, and enable pins. However, the AM26LV32EIDR is specified for 3.3 V supply and the AM26LS32ACDE4 for 5 V supply, so the supply voltage and logic levels must be verified for the target design before substitution.
Can the AM26LV32EIDR be used as a direct replacement for the AM26LS32ACDE4 in an existing 5 V system?
No. The AM26LV32EIDR is a 3.3 V device and is not specified for 5 V supply operation. Its absolute maximum supply voltage rating and recommended operating conditions differ from the AM26LS32ACDE4, so direct substitution in a 5 V system is not supported by the manufacturer datasheets.
What are the supply voltage ranges for the AM26LV32EIDR and AM26LS32ACDE4?
The AM26LV32EIDR is specified for a 3.3 V nominal supply with a recommended operating range of 3.0 V to 3.6 V. The AM26LS32ACDE4 is specified for a 5 V nominal supply with a recommended operating range of 4.75 V to 5.25 V, per the respective manufacturer datasheets.
Do both devices support the same differential input voltage range?
Both are quad differential line receivers intended for RS-422/RS-485-type interfaces, but their specified common-mode input voltage ranges differ. The AM26LV32EIDR offers a common-mode input voltage range of -0.2 V to 5.7 V (with VCC = 3.3 V), while the AM26LS32ACDE4 specifies a common-mode input voltage range of -7 V to 7 V. Designers must verify the common-mode requirements of the target bus against the selected device.
What are the output logic levels of each device?
The AM26LV32EIDR provides 3.3 V-compatible outputs referenced to its VCC supply, while the AM26LS32ACDE4 provides 5 V TTL-compatible outputs. The output high and low voltage levels are specified relative to their respective supply voltages, so interfacing to downstream logic must account for the different logic families.
Are both devices qualified for the same operating temperature range?
Both the AM26LV32EIDR and AM26LS32ACDE4 are specified for the industrial temperature range of -40°C to 85°C, as stated in their respective manufacturer datasheets. Designers should still confirm the exact grade and suffix ordering information for the specific application.
Which device is better suited for low-power or battery-operated designs?
The AM26LV32EIDR is the more suitable choice for low-power or battery-operated designs because it operates from a 3.3 V supply and is characterized for lower supply current than the 5 V AM26LS32ACDE4. The lower supply voltage and reduced power consumption make it preferable for modern low-voltage systems.