Part A
ADM483EARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 6730 PCS
- Package
- SOIC-8
- Series
- Interface - Condutores, Receptores, Transceivers
Replacement verdict
Compatible functional replacement candidate
The ADM4852ARZ and ADM483EARZ are both half-duplex RS-485/RS-422 transceivers in an 8-lead SOIC package with a 5 V supply and identical pinout, making them a strong functional replacement candidate. The ADM483EARZ offers enhanced ESD protection and a lower slew-rate-limited data rate, so the designer should confirm that the reduced maximum data rate and the different fail-safe receiver behavior are acceptable for the target application before substituting.
Package Type
High match
Pin Configuration
High match
Data Rate
Validation required
ESD Protection
Validation required
Parts at a glance
Part B
ADM4852ARZ
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4726 PCS
- Package
- SOIC-8
- 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 | ADM4852ARZ | ADM483EARZ | Why it matters |
|---|---|---|---|
| Data Rate | 2.5 Mbps | 250 kbps | Maximum signaling speed; the faster part supports higher-throughput buses while the slower part is limited to lower-speed networks. |
| Duplex Mode | Half-duplex | Half-duplex | Determines whether transmit and receive share the same pair; both are half-duplex so bus wiring topology is compatible. |
| Number of Drivers/Receivers | 1 driver / 1 receiver | 1 driver / 1 receiver | Defines the transceiver channel count; identical configuration means pin function and bus role are interchangeable. |
| Supply Voltage | 5 V | 5 V | Operating rail voltage; matching 5 V supplies allows drop-in use in the same system power domain. |
| ESD Protection (Bus Pins) | ±15 kV (HBM) | ±15 kV (HBM) | Robustness against electrostatic discharge on the bus; equal ratings indicate comparable field reliability. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Ambient range over which specs are guaranteed; identical ranges suit the same industrial environments. |
| Package / Mounting | 8-SOIC (surface mount) | 8-SOIC (surface mount) | Footprint and assembly compatibility; matching SOIC packages allow the same PCB land pattern. |
| Fail-Safe Receiver | Yes (open/short fail-safe) | Yes (open/short fail-safe) | Guarantees a defined logic output when the bus is idle, open, or shorted, preventing spurious data in either part. |
| Driver Output / Receiver Input Compliance | RS-485 / RS-422 compatible | RS-485 / RS-422 compatible | Confirms protocol-level interoperability on standard multipoint buses, so either device can serve the same network role. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADM483EARZ | ADM4852ARZ |
|---|---|---|
| Part Status | Active | Active |
| Type | Transceiver | Transceiver |
| Protocol | RS422, RS485 | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 | 1/1 |
| Duplex | Half | Half |
| Receiver Hysteresis | 70 mV | 20 mV |
| Data Rate | 250kbps | 2.5Mbps |
| Voltage - Supply | 4.5V ~ 5.5V | 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 primary differences between the ADM4852ARZ and ADM483EARZ?
The ADM4852ARZ is a half-duplex RS-485/RS-422 transceiver specified for data rates up to 2.5 Mbps, while the ADM483EARZ is a half-duplex RS-485/RS-422 transceiver specified for data rates up to 250 kbps. Both are 5 V single-supply devices in 8-lead SOIC packages, but they differ in maximum data rate, slew-rate limiting, and quiescent supply current.
Are the ADM4852ARZ and ADM483EARZ pin-compatible?
Yes. Both devices are offered in the same 8-lead SOIC (R-8) package with the same pinout: RO, RE, DE, DI, GND, A, B, and VCC. This allows them to share a common PCB land pattern, although electrical differences must still be validated for the target design.
Which device supports higher data rates, the ADM4852ARZ or the ADM483EARZ?
The ADM4852ARZ supports data rates up to 2.5 Mbps, whereas the ADM483EARZ is limited to 250 kbps. The ADM483EARZ uses slew-rate-limited driver outputs to reduce EMI and reflections, which constrains its maximum data rate.
What is the quiescent supply current of each device?
The ADM4852ARZ has a typical quiescent supply current of 300 µA, while the ADM483EARZ has a typical quiescent supply current of 36 µA. Both are specified for a 5 V ±10% single supply.
Do both parts include fail-safe receiver inputs?
Yes. Both the ADM4852ARZ and ADM483EARZ feature fail-safe receiver inputs that guarantee a known logic-high output when the receiver inputs are open, shorted, or terminated but undriven.
What is the common-mode input voltage range for these transceivers?
Both the ADM4852ARZ and ADM483EARZ specify a receiver common-mode input voltage range of −7 V to +12 V, which meets the RS-485 standard requirements for multipoint bus applications.
Can the ADM4852ARZ and ADM483EARZ be used interchangeably in an existing design?
They are pin-compatible and share the same supply voltage and package, but they are not electrically identical. The ADM4852ARZ offers a higher data rate and higher quiescent current, while the ADM483EARZ offers lower quiescent current and slew-rate-limited outputs. Substitution should only be made after verifying data rate, EMI, and power budget requirements against the manufacturer datasheets.