MAX13450E
PRODUCTIONRS-485 Transceivers with Integrated 100Ω/120Ω Termination Resistors
Software/Pin-Selectable Termination Eliminates the Need for External Resistors and DIP Switches
- Part Models
- 2
- 1ku List Price
- Starting From $2.58
Overview
- Easy Configuration of RS-485 Networks Up to 20Mbps (max) Data Rate
- Software/Pin-Selectable 100Ω/120Ω Termination
- Integrated, Switchable Resistors Eliminate the Need for External Resistors or DIP Switches
- Driver Drives 100Ω Double Termination and Supports Cat-5/Cat-6 and 24-AWG Cables
- Pin-Selectable Slew-Rate Limiting Reduces EMI for Data Rates Up to 500kbps
- 1/8 Unit Load Allows Up to 256 Transceivers On the Bus
- Designed to Perform in Harsh Environments
- Extended ESD Protection
- ±30kV Human Body Model
- ±15kV Air Gap Discharge per IEC 61000-4-2
- ±7kV Contact Discharge per IEC 61000-4-2
- Inverting of A, B Line Polarity (MAX13451E) Allows Phase Reversal if Misconnected
- Thermal and Overcurrent Protection
- Driver Fault Indication (MAX13451E)
- Fail-Safe Receivers
- −40°C to +125°C Temperature Range
- +4.5V to +5.5V Supply Voltage Range
- Extended ESD Protection
- Integrated Low-Voltage Logic Interface (Down to 1.8V) Interfaces with Small-Geometry ASICs and FPGA
The MAX13450E/MAX13451E are half-duplex and full-duplex RS-485 transceivers. These devices feature internal 100Ω and 120Ω termination resistors. The resistor values are pin selectable. A logic supply input allows interfacing to logic levels down to +1.8V.
The MAX13450E/MAX13451E feature strong drivers specified to drive low-impedance lines found when a fully loaded bus, based on today's 100Ω characteristic impedance cable, is doubly terminated. Both devices allow slew-rate limiting of the driver output to reduce EMI and reflections for data rates up to 500kbps.
The MAX13451E has a FAULT alarm indication output to signal to the system that an error condition exists in the driver. The MAX13451E also features a logic inversion function. The logic inversion allows phase reversal of the A-B signals in case these are inadvertently connected wrongly.
The MAX13450E/MAX13451E have 1/8-unit load receiver input impedance, allowing up to 256 transceivers on the bus. All driver outputs are protected to ±30kV ESD using the Human Body Model (HBM).
The MAX13450E/MAX13451E are available in a 14-pin TSSOP package and operate over the automotive −40°C to +125°C temperature range.
Applications
- Industrial Control Systems
- Medical Networks
- Motor Control
- Portable Industrial Equipment
- Security Networks
Documentation
Data Sheet 1
Reliability Data 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX13450EAUD+ | TSSOP_4.4 / TSSOP_6.1 | ||
| MAX13450EAUD+T | TSSOP_4.4 / TSSOP_6.1 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 13, 2022 - 2236A ASSEMBLY |
||
| MAX13450EAUD+ | PRODUCTION | |
| MAX13450EAUD+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.