Overview
The LTC1480IS8#PBF is a 3.3V ultra-low power RS485 transceiver manufactured by Analog Devices Inc. (formerly Linear Technology). This component is designed to provide full RS485 compatibility while operating from a single 3.3V supply, making it ideal for battery-powered and low-power applications. The transceiver features a fail-safe receiver that guarantees a high output state when the inputs are left open, ensuring reliable operation in various environments.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Differential Driver Output Voltage (Unloaded) | VCC = 3.3V | - | - | 3.3 | V |
| Differential Driver Output Voltage (with Load, RS485) | R = 27Ω | 1.5 | - | 3.3 | V |
| Differential Driver Output Voltage (with Load, RS422) | R = 50Ω | 2.0 | - | - | V |
| Change in Magnitude of Driver Differential Output Voltage | R = 27Ω or R = 50Ω | - | - | 0.2 | V |
| Driver Common Mode Output Voltage | R = 27Ω or R = 50Ω | - | - | 2 | V |
| Change in Magnitude of Driver Common Mode Output Voltage | R = 27Ω or R = 50Ω | - | - | 0.2 | V |
| Driver Enable from Shutdown to Output LOW | CL = 100pF | 70 | - | 120 | ns |
| Receiver Enable from Shutdown to Output HIGH | CL = 15pF | - | - | 4500 | ns |
Key Features
- Ultra-low power consumption, suitable for battery-powered applications.
- Full RS485 compatibility with a single 3.3V supply.
- Fail-safe receiver ensures high output state when inputs are left open.
- Available in 8-pin SO and DIP packages.
- Fully specified over commercial and extended industrial temperature ranges.
Applications
- Battery-powered RS485/RS422 systems.
- Low-power RS485/RS422 transceivers.
- Industrial automation and control systems.
- Remote sensing and monitoring systems.
- Any application requiring low power and reliable RS485 communication.
Q & A
- What is the operating voltage of the LTC1480IS8#PBF? The operating voltage is 3.3V.
- What is the typical power consumption of the LTC1480IS8#PBF? The component is designed for ultra-low power consumption, making it suitable for battery-powered applications.
- What are the package options for the LTC1480IS8#PBF? It is available in 8-pin SO and DIP packages.
- Does the LTC1480IS8#PBF have a fail-safe feature? Yes, the receiver has a fail-safe feature that guarantees a high output state when the inputs are left open.
- What are the temperature ranges for which the LTC1480IS8#PBF is specified? It is fully specified over commercial and extended industrial temperature ranges.
- What is the differential driver output voltage for RS485 and RS422 configurations? For RS485, it is 1.5V to 3.3V with a 27Ω load, and for RS422, it is 2.0V with a 50Ω load.
- How long does it take for the driver to enable from shutdown to output LOW? It takes between 70ns to 120ns with a 100pF load.
- How long does it take for the receiver to enable from shutdown to output HIGH? It takes up to 4500ns with a 15pF load.
- What are some common applications for the LTC1480IS8#PBF? Common applications include battery-powered RS485/RS422 systems, low-power RS485/RS422 transceivers, industrial automation, and remote sensing and monitoring systems.
- Where can I find detailed specifications for the LTC1480IS8#PBF? Detailed specifications can be found in the datasheet available on the Analog Devices website or through distributors like Digi-Key and Heisener.
