Overview
The ADG1438BRUZ, produced by Analog Devices Inc., is a serially controlled, 8-channel analog matrix switch. This device is part of the ADG1438 series and features a versatile 3-wire serial interface compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards. The ADG1438 is designed for high-speed operations, with clock rates up to 50 MHz, making it suitable for a variety of applications requiring precise signal routing and switching.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | ±15 V, +12 V, ±5 V |
| Input Signal Range | Extends to the supply rails |
| On Resistance | Ultralow on resistance and on-resistance flatness |
| Switching Action | Break-before-make switching action |
| Serial Interface | 3-wire serial interface (SYNC, SCLK, DIN) compatible with SPI, QSPI, MICROWIRE, and DSP standards |
| Clock Frequency | Up to 50 MHz |
| Package Type | 20-Lead TSSOP |
| Power Dissipation | Ultralow power dissipation due to iCMOS® construction |
Key Features
- Serially controlled 8-channel analog matrix switch
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards
- High-speed operation with clock rates up to 50 MHz
- Ultralow on resistance and on-resistance flatness
- Break-before-make switching action to prevent momentary shorting
- iCMOS® construction for ultralow power dissipation
- Each switch is independently controlled by an individual bit, allowing flexible configuration
Applications
- Data acquisition systems where low distortion is critical
- Gain switching applications requiring precise signal routing
- Multiplexing and demultiplexing applications
- Portable and battery-powered instruments due to low power consumption
Q & A
- What is the ADG1438BRUZ? The ADG1438BRUZ is a serially controlled, 8-channel analog matrix switch produced by Analog Devices Inc.
- What are the supply voltage options for the ADG1438BRUZ? The device can operate with supply voltages of ±15 V, +12 V, and ±5 V
- What is the maximum clock frequency of the ADG1438BRUZ? The maximum clock frequency is up to 50 MHz
- What type of serial interface does the ADG1438BRUZ use? It uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards
- What is the significance of the break-before-make switching action? This action prevents momentary shorting when switching channels
- Why is the ADG1438BRUZ suitable for portable and battery-powered instruments? It is due to its ultralow power dissipation thanks to iCMOS® construction
- Can multiple ADG1438BRUZ devices be daisy-chained? Yes, the output of the shift register, SDO, enables daisy-chaining of multiple devices
- What are some common applications of the ADG1438BRUZ? Common applications include data acquisition, gain switching, multiplexing, and demultiplexing
- What is the package type of the ADG1438BRUZ? The device is available in a 20-Lead TSSOP package
- How are the switches controlled in the ADG1438BRUZ? Each switch is independently controlled by an individual bit in the 8-bit write sequence
