Overview
The LTC2852IDD#TRPBF is a low power, 20Mbps RS485/RS422 transceiver produced by Analog Devices Inc. This component operates on a 3.3V supply and is designed for high-speed data transmission. It features a one-eighth unit load receiver, supporting up to 256 nodes per bus, and includes a failsafe feature that ensures a high output state even under conditions of floating or shorted inputs. The transceiver is part of the LTC2850, LTC2851, and LTC2852 family, offering various package options and robust protection mechanisms such as current limiting and thermal shutdown.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | -0.3 | 7 | V | ||
| Logic Input Voltages (RE, DE, DI) | -0.3 | 7 | V | ||
| Interface I/O: A, B, Y, Z | (VCC - 15) | 15 | V | ||
| Receiver Output Voltage (RO) | -0.3 | VCC + 0.3 | V | ||
| Operating Temperature | 0 | 70 | °C | ||
| Maximum Data Rate | 20 | Mbps | |||
| Driver Differential Output Voltage | R = ∞, VCC = 3V | 1.5 | 2 | V | |
| Receiver Propagation Delay | 20 | ns | |||
| Supply Current in Receive Mode | 370 | µA |
Key Features
- 3.3V supply voltage
- 20Mbps maximum data rate
- No damage or latchup up to ±15kV HBM (human body model) on the transceiver interface pins
- High input impedance supports up to 256 nodes per bus (C-, I-grade)
- Operation up to 125°C (H-grade)
- Guaranteed failsafe receiver operation over the entire common mode range
- Current limited drivers and thermal shutdown
- Delayed micropower shutdown: 5µA maximum (C-, I-grade)
- Power up/down glitch-free driver outputs
- Low operating current: 370µA typical in receive mode
- Compatible with TIA/EIA-485-A specifications
- Available in 10-Pin 3mm × 3mm DFN, 10-Pin MSOP, and 14-Pin SO packages
Applications
- Low power RS485/RS422 transceiver
- Level translator
- Backplane transceiver
- Industrial automation and control systems
- Automotive and aerospace systems
- Medical and instrumentation devices
- Network and communication equipment
Q & A
- What is the maximum data rate of the LTC2852IDD#TRPBF?
The maximum data rate is 20Mbps.
- What is the supply voltage for the LTC2852IDD#TRPBF?
The supply voltage is 3.3V.
- How many nodes can the receiver support per bus?
The receiver can support up to 256 nodes per bus.
- What is the operating temperature range for the LTC2852IDD#TRPBF?
The operating temperature range is 0°C to 70°C.
- Does the LTC2852IDD#TRPBF have failsafe receiver operation?
- What is the typical supply current in receive mode?
The typical supply current in receive mode is 370µA.
- Is the LTC2852IDD#TRPBF compatible with TIA/EIA-485-A specifications?
- What are the available package options for the LTC2852IDD#TRPBF?
- Does the LTC2852IDD#TRPBF have ESD protection?
- What are some common applications of the LTC2852IDD#TRPBF?
