Analog Devices Inc. ADGS1414D Octal SPST Switches
Analog Devices Inc. ADGS1414D Octal SPST Switches feature eight independent switches controlled by a serial peripheral interface (SPI). The SPI implements many error detection features including cyclic redundancy check (CRC) error detection, invalid read and write address detection, and SCLK count error detection.
The ADI ADGS1414D SPST Switches allows multiple devices to be daisy-chained, and daisy-chain mode enables the configuration of multiple devices with a minimal amount of digital lines. Channel density is further increased by routing digital signals and supplies through the ADGS1414D. The ADGS1414D integrates many passive components, eliminating the need for external ones.
The ADGS1414D conducts each switch equally in both directions, and each switch has an input signal range that extends to the supplies. This makes the ADGS1414D ideal for high-density switching applications, such as large switching matrices, and fanout applications.
Features
- SPI with error detection
- Includes CRC, invalid read and write address, and SCLK count error detection
- Supports burst mode and daisy-chain mode
- Industry-standard SPI Mode 0 and Mode 3 interface compatible
- Integrated passive components
- Route through of digital signals and supplies
- Guaranteed break-before-make switching allowing external wiring of switches to deliver multiplexer configurations
- 1.5Ω typical on resistance at 25°C (±15V dual supply)
- 0.3Ω typical on resistance flatness at 25°C (±15V dual supply)
- 0.1Ω typical on resistance match between channels at 25°C (±15V dual supply)
- VSS to VDD analog signal range
- Fully specified at ±15V, ±5V, and +12V
- 1.8V logic compatibility with 2.7V ≤ VL ≤ 3.3V (excludes SPI readback to a 1.8V device)
- 4mm × 5mm, 30-terminal LGA
Applications
- Automated test equipment
- Data acquisition systems
- Sample-and-hold systems
- Audio and video signal routing
- Communications systems
- Relay replacement
Associated Eval Board
Analog Devices Inc. EV-ADGS1414DSDZ Evaluation Board
Configured to evaluate the operation of the ADGS1414D Octal SPST Switch controlled by a SPI.
Block Diagram
