仕様
| 属性 | 値 |
| Supplier | Analog Devices Inc. |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Receiver Hysteresis | 250 mV |
| Data Rate | 20Mbps |
| Voltage - Supply | 3V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
概要
Description
LTC2862AIS8-1#TRPBF is an Analog Devices (formerly Linear Technology) isolated RS-485/RS-422 transceiver. It provides galvanic isolation between the bus side and the host (logic) side, enabling safe, long-distance differential comms in noisy industrial environments.
Key points
- Isolation: galvanic isolation (typical up to 2.5 kV RMS) between logic and bus
- Interface: differential RS-485/RS-422 transceiver, suitable for half‑duplex operation
- Features: fail‑safe receiver, undervoltage lockout, ESD/surge protection, low power
- Packaging: 8‑pin AIS8 package; Pb‑free; Tape & Reel (TRPBF)
- Applications: industrial automation, process control, building automation, data acquisition
Typical connections
- Bus pins connect to A/B pair
- Logic pins connect to MCU via DI/RO/DE/RE (or equivalent) controls
- Requires isolated supply for the bus side (and a local supply for the logic side)
Note: Exact electrical specs (data rate, voltages, temperature range) vary by variant; consult the datasheet for precise numbers.
Key points
- Isolation: galvanic isolation (typical up to 2.5 kV RMS) between logic and bus
- Interface: differential RS-485/RS-422 transceiver, suitable for half‑duplex operation
- Features: fail‑safe receiver, undervoltage lockout, ESD/surge protection, low power
- Packaging: 8‑pin AIS8 package; Pb‑free; Tape & Reel (TRPBF)
- Applications: industrial automation, process control, building automation, data acquisition
Typical connections
- Bus pins connect to A/B pair
- Logic pins connect to MCU via DI/RO/DE/RE (or equivalent) controls
- Requires isolated supply for the bus side (and a local supply for the logic side)
Note: Exact electrical specs (data rate, voltages, temperature range) vary by variant; consult the datasheet for precise numbers.
Equivalent
LTC2862AIS8-1#TRPBF is an isolated RS-485/RS-422 transceiver. Direct pin-for-pin equivalents vary by spec. Closest cross-refs: Texas Instruments ISO1540/ISO1541 and ISO3080/ISO3081 isolated RS-485/RS-422 transceivers; Analog Devices ADM248x family (isolated RS-485/RS-422). For exact substitutes, provide target data rate, bus type, supply voltage, and isolation rating. I can suggest precise parts.
Features
Here are the key features of LTC2862AIS8-1#TRPBF (concise):
- Dual isolated RS-485/RS-422 transceivers (two channels) with galvanic isolation.
- Supports RS-485 half-duplex and RS-422 full-duplex operation.
- Data rates up to about 20 Mbps per channel.
- 3.3V/5V logic-level compatibility with appropriate thresholds.
- Wide operating temperature: industrial range (-40°C to 125°C).
- Bus protection: robust ESD protection on bus pins and bus-fault tolerance (typical high-voltage/voltage‑clamp protection).
- Fail-safe receiver outputs provide a known state for open/shorted/busy lines.
- Pb-free, 8-pin AIS8 package; Tape & Reel (TRPBF) packaging.
Applications: industrial networks, isolated sensor/actuator interfaces, data link in harsh environments.
- Dual isolated RS-485/RS-422 transceivers (two channels) with galvanic isolation.
- Supports RS-485 half-duplex and RS-422 full-duplex operation.
- Data rates up to about 20 Mbps per channel.
- 3.3V/5V logic-level compatibility with appropriate thresholds.
- Wide operating temperature: industrial range (-40°C to 125°C).
- Bus protection: robust ESD protection on bus pins and bus-fault tolerance (typical high-voltage/voltage‑clamp protection).
- Fail-safe receiver outputs provide a known state for open/shorted/busy lines.
- Pb-free, 8-pin AIS8 package; Tape & Reel (TRPBF) packaging.
Applications: industrial networks, isolated sensor/actuator interfaces, data link in harsh environments.
Pinout
- Pin count: 8 pins (AIS8 package)
- Function: Isolated differential transceiver for RS-485/RS-422 (galvanic isolation between sides, differential TX/RX interface).
- Function: Isolated differential transceiver for RS-485/RS-422 (galvanic isolation between sides, differential TX/RX interface).
Manufacturer
- Manufacturer: Analog Devices, Inc. (the LTC prefix comes from Linear Technology, which Analog Devices acquired in 2017).
- What kind of company: A US-based multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing ICs for automotive, industrial, communications, and consumer markets.
- What kind of company: A US-based multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal processing ICs for automotive, industrial, communications, and consumer markets.
Application
Applications of LTC2862AIS8-1#TRPBF (isolated RS-485/RS-422 transceiver):
- Industrial automation and PLC networks (Modbus RTU, RS-485)
- Distributed control, remote I/O and instrumentation
- Motor drives, servo controls and CNC equipment
- Process control and data acquisition systems
- Building automation, energy metering and smart-grid equipment
- Renewable-energy inverters and power-monitoring systems
- Hazardous/noisy environments requiring galvanic isolation on serial links
Provides robust isolation for long-cable RS-485/RS-422 communication in harsh industrial settings.
- Industrial automation and PLC networks (Modbus RTU, RS-485)
- Distributed control, remote I/O and instrumentation
- Motor drives, servo controls and CNC equipment
- Process control and data acquisition systems
- Building automation, energy metering and smart-grid equipment
- Renewable-energy inverters and power-monitoring systems
- Hazardous/noisy environments requiring galvanic isolation on serial links
Provides robust isolation for long-cable RS-485/RS-422 communication in harsh industrial settings.
Package
8-pin SOIC (S8) plastic package. Pb-free (TRPBF) and delivered in Tape & Reel.
