Overview
The LTC2861IGN#PBF is a high-reliability RS-485/RS-422 transceiver from Analog Devices (ADI, formerly Linear Technology) , designed for stable data transmission in industrial communications and harsh electromagnetic environments . This device integrates a fail-safe receiver, thermal shutdown, and overvoltage protection mechanisms , improving system reliability while effectively reducing the risk of communication failures.
The LTC2861IGN#PBF features high common-mode range, strong anti-interference capability, and low power consumption . It supports half-duplex RS-485 communication and is widely used in industrial automation, building control, energy management, motion control, and fieldbus systems . It is an industrial-grade communication interface solution that has been proven in the market for a long time.
Core parameters
| Parameter | Value |
| Product Type | RS-485 / RS-422 transceivers |
| Communication mode | half-duplex |
| Data rate | Up to 20 Mbps |
| Receiver type | Fail-Safe |
| Common mode voltage range | -7V to +12V |
| ESD protection | ±15kV (HBM, typical) |
| Power supply voltage | 3.0V to 5.5V |
| Low power mode | support |
| Drive output | difference |
| Encapsulation type | SSOP-16 (GN) |
| Operating temperature range | -40°C to +85°C |
| Environmental standards | RoHS compliant (#PBF, lead-free) |
Features
High-speed and stable data transmission capability
LTC2861IGN#PBF supports the highest With a communication rate of 20Mbps , it can meet the needs of high-speed industrial data transmission and is suitable for control systems and fieldbus applications with high real-time requirements .
Excellent anti-interference and fault tolerance capabilities
The device features a wide common-mode voltage range and a built-in fault protection receiver, which can still output a stable logic state even under abnormal conditions such as bus idle, short circuit or open circuit, significantly improving system robustness.
Multiple protection mechanisms enhance system security
integrated ESD protection, thermal shutdown, and overvoltage protection effectively address electrostatic discharge, voltage surges, and abnormal operating conditions in industrial environments, reducing the risk of device damage.
Low power consumption design, suitable for long-term system operation
It supports low-power operating modes, reducing system power consumption without affecting communication reliability, making it suitable for energy-sensitive industries and embedded devices.
Typical application scenarios
- Industrial automation and PLC system
fieldbus communication, I/O module data transmission.
- Building and infrastructure control
HVAC, lighting and security system communication interfaces.
- Energy and power system
meters, energy management and monitoring networks.
- Communication connection between motion control and servo drives and controllers of factory equipment .
- RS-485 network nodes and communication modules for industrial and embedded communication equipment .
Comparative Advantage Analysis
| Performance indicators | LTC2861IGN#PBF | Standard RS-485 transceiver |
| Maximum speed | 20 Mbps | ≤10 Mbps |
| Fault protection | Built-in Fail-Safe | Normally none |
| Common mode range | Wide range (–7V to +12V) | Narrower |
| ESD protection | high | medium |
| Industrial reliability | excellent | generally |
| Application Environment | Industrial grade | Basic Applications |
The LTC2861IG N#PBF is significantly superior to ordinary RS-485 interface chips in terms of communication reliability, anti-interference capability, and industrial applicability .
Manufacturer Profile: Analog Devices (ADI)
Analog Devices is a leading global manufacturer of high-performance analog and mixed-signal semiconductors. Its RS-485/RS-422 interface products are widely used in industrial and energy sectors, and the LTC286x series is renowned for its high robustness, strong anti-interference capabilities, and long-term stable supply .
Why choose LTC2861IGN#PBF?
● Supports high-speed RS-485 communication (up to 20Mbps)
● Built-in Fail-Safe receiver for enhanced system reliability
● Wide common-mode range for complex industrial environments
● Multiple protection mechanisms to reduce system risks
● Industrial-grade temperature range for long-term stable operation
● ADI original quality, mature and reliable
Frequently Asked Questions (FAQ)
Q1: Is the LTC2861IGN#PBF suitable for high-noise industrial environments?
Yes. The LTC2861IGN#PBF is specifically designed for industrial-grade RS-485/RS-422 communication , featuring a wide common-mode input range, strong anti-interference capabilities, ±15kV ESD protection , and a bus fault protection mechanism . It maintains stable and reliable data communication even in industrial networks with high noise levels, severe motor interference , or long cabling.
Q2: Does it support 3.3V systems?
Yes. This device operates in the range of 3.0V to 5.5V , and is directly compatible with 3.3V and 5V MCU logic levels without the need for additional level conversion circuitry , facilitating system integration.
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