Part A
ADM4852ARZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 4726 PCS
- Package
- SOIC-8
- Series
- Interfaces - pilotes, récepteurs, émetteurs - récepteurs
Replacement verdict
Compatible functional replacement candidate
The ADM4852ARZ and ADM4852AR are functionally equivalent RS-485/RS-422 transceivers from the same manufacturer family, sharing identical core electrical specifications, package footprint, and pinout. The only meaningful distinction is the RoHS-compliant lead-free finish of the ARZ suffix versus the leaded finish of the AR variant, making the ARZ a suitable drop-in replacement for the AR in most applications, subject to confirmation of solder process and compliance requirements.
Data Rate
High match
Package Type
High match
Supply Voltage
High match
RoHS Compliance
Validation required
Parts at a glance
Part B
ADM4852AR
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3236 PCS
- Package
- SOIC-8
- 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 | ADM4852ARZ | ADM4852AR | Why it matters |
|---|---|---|---|
| Manufacturer | Analog Devices | Analog Devices | Same manufacturer ensures consistent design, documentation, and quality standards. |
| Function | Half-duplex RS-485/RS-422 transceiver | Half-duplex RS-485/RS-422 transceiver | Identical device function is the primary requirement for substitutability. |
| Data Rate | 2.5 Mbps | 2.5 Mbps | Maximum data rate must match the bus speed requirements of the application. |
| Supply Voltage | 5 V | 5 V | Operating supply voltage must match the system power rail. |
| Number of Drivers/Receivers | 1/1 | 1/1 | Driver/receiver count determines bus topology compatibility. |
| Duplex | Half | Half | Duplex mode must match the communication scheme of the network. |
| Mounting Type | Surface Mount | Surface Mount | Mounting style must match the PCB assembly process. |
| Package / Case | 8-SOIC (RoHS-compliant, Z suffix) | 8-SOIC (non-RoHS) | The Z suffix denotes RoHS compliance; the non-Z part may not meet lead-free/restricted-substance requirements. |
| RoHS Compliance | RoHS compliant | Non-RoHS | RoHS status affects regulatory compliance and solder process compatibility. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range must cover the application's environmental conditions. |
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 | ADM4852ARZ | ADM4852AR |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC |
| Part Status | Active | Obsolete |
| Type | Transceiver | Transceiver |
| Protocol | RS422, RS485 | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 | 1/1 |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Mounting Type | Surface Mount | Surface Mount |
| Duplex | Half | - |
| Receiver Hysteresis | 20 mV | - |
| Data Rate | 2.5Mbps | - |
| Operating Temperature | -40°C ~ 85°C | - |
Frequently asked questions
What is the difference between ADM4852ARZ and ADM4852AR?
The ADM4852ARZ and ADM4852AR are functionally identical RS-485/RS-422 transceivers from Analog Devices. The suffix "Z" denotes RoHS-compliant packaging, while the non-Z version (ADM4852AR) is the legacy non-RoHS variant. Both are specified in the same 8-lead SOIC package with identical pinout and electrical performance.
Are ADM4852ARZ and ADM4852AR pin-compatible?
Yes. Both devices use the same 8-lead SOIC (R-8) package with identical pin assignments, allowing direct PCB footprint compatibility. The only distinction is the RoHS compliance status indicated by the "Z" suffix.
Can ADM4852ARZ be used as a drop-in replacement for ADM4852AR?
Yes, from a functional and footprint standpoint the ADM4852ARZ is a drop-in replacement for the ADM4852AR. The ADM4852ARZ is the RoHS-compliant version and is the recommended part for new designs, while the non-Z variant may be subject to restricted availability due to RoHS regulations.
What are the key specifications of the ADM4852 transceiver family?
The ADM4852 is a half-duplex RS-485/RS-422 transceiver operating from a single 5 V supply, featuring data rates up to 2.5 Mbps, low power shutdown, and thermal shutdown protection. It includes one driver and one receiver with fail-safe receiver inputs and is specified over the industrial temperature range of −40°C to +85°C.
Does the "Z" suffix affect electrical performance or data rate?
No. The "Z" suffix only indicates RoHS compliance (lead-free, halogen-free packaging per Analog Devices convention). Electrical parameters such as supply voltage, data rate, driver/receiver characteristics, and temperature range are identical between ADM4852ARZ and ADM4852AR.
Which variant should be selected for a new design?
The ADM4852ARZ should be selected for new designs because it is RoHS-compliant and aligns with current environmental regulations and manufacturing requirements. The non-Z ADM4852AR is a legacy part and may not be available or recommended for new production.
Are both variants available in the same package type?
Yes. Both ADM4852ARZ and ADM4852AR are offered in the 8-lead SOIC package (R-8 suffix). Package dimensions, pin count, and thermal characteristics are identical, so no layout changes are required when switching between them.