Part A
MAX3082ESA+T
Analog Equipment GmbH / intégration Maxim
- Lifecycle
- Active
- Stock
- 5054 PCS
- Package
- SOIC-8
- Series
- Interfaces - pilotes, récepteurs, émetteurs - récepteurs
Replacement verdict
Not a drop-in replacement
The MAX3082ESA+T and MAX3054ASD+T are not functionally interchangeable. Although both are RS-485/RS-422 transceivers in 8-pin packages, they differ fundamentally in data rate, fail-safe behavior, supply voltage range, and application positioning. The MAX3082ESA+T is a 115kbps slew-rate-limited device optimized for low-EMI communication, while the MAX3054ASD+T is a 500kbps transceiver with integrated fault protection. Designers must verify protocol timing, bus loading, and fail-safe requirements before considering any substitution.
Different data rate
Different fail-safe logic
Different supply range
Different fault protection
Parts at a glance
Part B
MAX3054ASD+T
Analog Equipment GmbH / intégration Maxim
- Lifecycle
- Active
- Stock
- 8782 PCS
- Package
- SOIC-14
- 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 | MAX3082ESA+T | MAX3054ASD+T | Why it matters |
|---|---|---|---|
| Data Rate | 115 kbps | 1 Mbps | Maximum communication speed; a slower device cannot substitute in a high-speed bus without limiting throughput. |
| Duplex Mode | Half-duplex | Full-duplex | Determines whether simultaneous transmit and receive is possible; mismatched duplex prevents direct drop-in replacement. |
| Number of Drivers / Receivers | 1 / 1 | 1 / 1 | Defines the channel count per package; identical counts support equivalent bus topology. |
| Supply Voltage | 5 V | 5 V | Operating rail must match the system supply for electrical compatibility. |
| Fail-Safe Receiver | Yes | Yes | Guarantees a defined logic output when inputs are open or shorted, preventing undefined bus states. |
| ESD Protection (Human Body Model) | ±15 kV | ±15 kV | Higher ESD ratings improve robustness in harsh industrial environments. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +125 °C | Wider temperature range supports automotive and industrial applications requiring higher thermal tolerance. |
| Package / Pin Count | 8-SOIC | 14-SOIC | Different footprints and pinouts prevent direct PCB drop-in substitution without layout changes. |
| Common-Mode Voltage Range | -7 V to +12 V | -7 V to +12 V | Determines tolerance to ground potential differences between nodes on the bus. |
| Quiescent Supply Current | 300 µA (typ) | 1 mA (typ) | Affects power budget, especially in battery-powered or low-power designs. |
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 | MAX3082ESA+T | MAX3054ASD+T |
|---|---|---|
| Supplier | - | Analog Devices Inc./Maxim Integrated |
| Part Status | Active | Obsolete |
| Type | Transceiver | Transceiver |
| Protocol | RS422, RS485 | CANbus |
| Number of Drivers/Receivers | 1/1 | 1/1 |
| Duplex | Half | Full |
| Receiver Hysteresis | 100 mV | 18 mV |
| Data Rate | 115Kbps | 250kbps |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
Are the MAX3082ESA+T and MAX3054ASD+T interchangeable in the same application?
No. The MAX3082ESA+T is a ±15kV ESD-protected, fail-safe, 3.3V RS-485/RS-422 transceiver in an 8-pin SOIC package, while the MAX3054ASD+T is a ±80V fault-protected CAN transceiver in a 14-pin SOIC package. They differ in protocol, supply voltage, pin count, package, and fault protection, so they are not pin-to-pin or function-to-function replacements.
What serial protocol does each device support?
The MAX3082ESA+T supports RS-485 and RS-422 differential communication. The MAX3054ASD+T supports the CAN (Controller Area Network) protocol.
What are the supply voltage requirements for these two parts?
The MAX3082ESA+T operates from a 3.3V supply. The MAX3054ASD+T operates from a 5V supply.
How do the fault-protection ratings compare between the MAX3082ESA+T and MAX3054ASD+T?
The MAX3082ESA+T provides ±15kV ESD protection on its RS-485/RS-422 bus pins. The MAX3054ASD+T provides ±80V fault protection on its CAN bus pins, which is intended for automotive and industrial environments where high-voltage faults may occur.
Do the MAX3082ESA+T and MAX3054ASD+T use the same package and pin count?
No. The MAX3082ESA+T is supplied in an 8-pin SOIC package. The MAX3054ASD+T is supplied in a 14-pin SOIC package. Their pinouts and PCB land patterns are different.
Can the MAX3082ESA+T be used in a CAN bus design?
No. The MAX3082ESA+T is an RS-485/RS-422 transceiver and does not implement the CAN protocol. A CAN bus design requires a CAN transceiver such as the MAX3054ASD+T.
Which device is better suited for automotive or high-voltage fault environments?
The MAX3054ASD+T is better suited for those environments because it is a CAN transceiver with ±80V fault protection. The MAX3082ESA+T is an RS-485/RS-422 transceiver with ±15kV ESD protection and is not specified for the same high-voltage fault conditions.
Are the data rates of the MAX3082ESA+T and MAX3054ASD+T the same?
No. The MAX3082ESA+T is specified for RS-485/RS-422 data rates up to 115kbps. The MAX3054ASD+T is specified for CAN data rates up to 1Mbps.