Overview
The ADG731BSUZ, produced by Analog Devices Inc., is a monolithic, CMOS, 32-channel analog multiplexer. It features a serially controlled 3-wire interface compatible with SPI, QSPI, MICROWIRE, and some DSP interface standards. This device is designed to switch one of 32 inputs (S1–S32) to a common output, D, making it versatile for various applications. The ADG731 operates from a single supply of 1.8 V to 5.5 V or a ±2.5 V dual supply, ensuring broad compatibility and reliability.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 32 |
| Supply Voltage | 1.8 V to 5.5 V (single supply), ±2.5 V (dual supply) |
| On Resistance | Approx. 3.5 Ω |
| Switching Time | 42 ns (typ), 60 ns (max) |
| Break-Before-Make Time Delay | 30 ns (typ), 1 ns (min) |
| Input Signal Range | Extends to the supplies |
| Package Type | 48-Lead TQFP (7mm x 7mm) |
| Digital Input Compatibility | TTL/CMOS compatible |
| Power-On Reset | Internal Shift Register contains all zeros and all switches are in the OFF state on power-up |
Key Features
- 3-Wire SPI Compatible Serial Interface
- Low On Resistance and Flatness
- Rail-to-Rail Operation
- Power-On Reset
- Break-Before-Make Switching Action
- TTL/CMOS Compatible Digital Inputs
- Low Power Dissipation
- High Switching Speed
Applications
- Optical Applications
- Data Acquisition Systems
- Communication Systems
- Relay Replacement
- Audio and Video Switching
- Battery-Powered Systems
- Medical Instrumentation
- Automatic Test Equipment
Q & A
- What is the ADG731BSUZ?
The ADG731BSUZ is a 32-channel analog multiplexer produced by Analog Devices Inc. - What is the supply voltage range for the ADG731BSUZ?
The device operates from a single supply of 1.8 V to 5.5 V or a ±2.5 V dual supply. - What is the on resistance of the ADG731BSUZ?
The on resistance is approximately 3.5 Ω. - What is the switching time of the ADG731BSUZ?
The switching time is typically 42 ns and up to 60 ns maximum. - What type of package does the ADG731BSUZ come in?
The device is available in a 48-Lead TQFP package. - Is the ADG731BSUZ compatible with TTL/CMOS inputs?
Yes, it is TTL/CMOS compatible. - What is the input signal range for the ADG731BSUZ?
The input signal range extends to the supplies. - Does the ADG731BSUZ have a power-on reset feature?
Yes, the internal shift register contains all zeros and all switches are in the OFF state on power-up. - What are some common applications of the ADG731BSUZ?
Common applications include optical systems, data acquisition, communication systems, relay replacement, audio and video switching, battery-powered systems, medical instrumentation, and automatic test equipment. - How does the break-before-make switching action work?
The break-before-make switching action prevents momentary shorting when switching channels.
