Overview
The LTC2854IDD#TRPBF is a low-power, high-speed RS485/RS422 transceiver produced by Analog Devices Inc. This component operates on a 3.3V supply and is designed for high-performance communication applications. It features integrated logic-selectable 120Ω termination, supports up to 256 nodes per bus, and includes failsafe receiver operation to ensure high output states even under floating or shorted input conditions.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | - | -0.3 | - | 7 | V |
| Logic Input Voltages (RE, DE, DI, TE) | - | -0.3 | - | 7 | V |
| Interface I/O: A, B, Y, Z | (VCC –15V) to +15V (A-B) or (B-A) with Terminator Enabled | - | - | 6 | V |
| Differential Driver Output Voltage (|VOD|) | R = ∞, VCC = 3V | 1.5 | 2 | - | V |
| Maximum Data Rate | - | - | - | 20 | Mbps |
| Operating Temperature Range | - | -40 | - | 125 | °C |
| ESD Protection | - | - | - | ±25kV | HBM |
Key Features
- Low power consumption
- Integrated logic-selectable 120Ω termination resistor
- Supports up to 256 nodes per bus (C-, I-Grade)
- Failsafe receiver operation over the entire common mode range
- Current limited drivers and thermal shutdown for fault protection
- Enhanced ESD protection up to ±25kV (human body model)
- High input impedance
- Operation up to 125°C (H-Grade)
Applications
- Industrial automation and control systems
- Backplane and level translation applications
- High-speed data communication systems
- Embedded systems requiring reliable serial communication
- Aerospace and defense applications due to its high temperature range and robust ESD protection
Q & A
- What is the operating supply voltage of the LTC2854IDD#TRPBF?
The operating supply voltage is 3.3V.
- What is the maximum data rate supported by the LTC2854IDD#TRPBF?
The maximum data rate is 20Mbps.
- Does the LTC2854IDD#TRPBF have integrated termination?
Yes, it includes a logic-selectable 120Ω termination resistor.
- How many nodes can the LTC2854IDD#TRPBF support per bus?
It supports up to 256 nodes per bus (C-, I-Grade).
- What is the ESD protection level of the LTC2854IDD#TRPBF?
The ESD protection level is up to ±25kV (human body model).
- What is the operating temperature range of the LTC2854IDD#TRPBF?
The operating temperature range is from -40°C to 125°C.
- Does the LTC2854IDD#TRPBF have failsafe receiver operation?
Yes, it guarantees failsafe receiver operation over the entire common mode range.
- What kind of fault protection does the LTC2854IDD#TRPBF have?
It has current limited drivers and thermal shutdown for fault protection.
- What are some typical applications of the LTC2854IDD#TRPBF?
Typical applications include industrial automation, backplane and level translation, high-speed data communication systems, and embedded systems.
- Is the LTC2854IDD#TRPBF suitable for high-temperature environments?
Yes, it is suitable for high-temperature environments, operating up to 125°C (H-Grade).
