Overview
The LTC6820IMS#PBF, produced by Analog Devices Inc., is a high-performance isolated communications interface device designed for SPI (Serial Peripheral Interface) communications. It incorporates isoSPI technology, enabling high-speed, isolated data transfer between two devices through a single twisted-pair connection. This device is particularly useful in applications requiring robust and reliable communication across isolation barriers, such as in industrial automation, automotive systems, medical devices, and energy management systems.
Key Specifications
| Parameter | Conditions | Min | Max | Units | |
|---|---|---|---|---|---|
| Operating Supply Voltage Range (VDD) | 2.7 | 5.5 | 5.5 | V | |
| IO Supply Voltage Range (VDDS) | 1.7 | 5.5 | 5.5 | V | |
| Data Rate | Up to 1 | Mbps | |||
| Supply Current (READY/ACTIVE States) | RBIAS = 2kΩ, 1/tCLK = 1MHz | 4 | 4.8 | 5.8 | mA |
| Supply Current (IDLE State) | MSTR = 0V | 2 | 6 | µA | |
| Digital Voltage Output Low (MOSI, MISO, CS, SCK) | VDDS = 3.3V, Sinking 3.3mA | 0.2 | V | ||
| Package Type | 16-MSOP | ||||
| Operating Temperature Range | –40°C | 125°C | °C |
Key Features
- Enables robust isolated SPI communications using isoSPI technology.
- Supports high-speed data rates up to 1 Mbps.
- Operates over a wide supply voltage range (2.7V to 5.5V) for design flexibility.
- Low power consumption to enhance system efficiency.
- Integrated transformer driver for isolation, eliminating the need for a transformer center tap and reducing EMI.
- Provides bidirectional communication across an isolation barrier.
- Compact 16-MSOP packaging facilitates system miniaturization.
- Built-in protection mechanisms for enhanced safety and durability.
Applications
- Industrial automation and control systems.
- Automotive systems.
- Medical devices.
- Energy and power management systems.
Q & A
- What is the primary function of the LTC6820IMS#PBF?
The LTC6820IMS#PBF provides bidirectional SPI communications between two isolated devices through a single twisted-pair connection.
- What is the maximum data rate supported by the LTC6820IMS#PBF?
The device supports data rates up to 1 Mbps.
- What is the operating supply voltage range of the LTC6820IMS#PBF?
The operating supply voltage range is from 2.7V to 5.5V.
- What type of package does the LTC6820IMS#PBF come in?
The device is packaged in a 16-MSOP.
- What are the key applications of the LTC6820IMS#PBF?
Key applications include industrial automation, automotive systems, medical devices, and energy and power management systems.
- Does the LTC6820IMS#PBF have built-in protection mechanisms?
Yes, the device features built-in protection mechanisms for enhanced safety and durability.
- How does the LTC6820IMS#PBF achieve isolation?
The device achieves isolation through a simple pulse transformer, allowing for hundreds of volts of isolation.
- Is the LTC6820IMS#PBF compatible with various microcontrollers?
Yes, it is compatible with a wide range of microcontrollers and SPI peripherals.
- What is the operating temperature range of the LTC6820IMS#PBF?
The operating temperature range is from –40°C to 125°C.
- Is the LTC6820IMS#PBF currently in active production?
Yes, the device is currently in active production and not nearing discontinuation.
