Overview
The ADG738BRU, produced by Analog Devices Inc., is a CMOS analog matrix switch that features a serially-controlled 3-wire interface. This component is specifically designed as an 8-channel matrix switch, making it highly versatile for various applications. It operates within a voltage range of 2.7 V to 5.5 V, ensuring compatibility with a wide range of systems. The device is known for its low on-resistance and flat on-resistance over the full signal range, which enhances its performance in multiplexing and demultiplexing tasks.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions/Comments |
|---|---|---|---|---|
| Analog Signal Range | 0 V to VDD | V | ||
| On Resistance (RON) | 6 Ω | 16 Ω | Ω | VS = 0 V to VDD, IS = 10 mA |
| On-Resistance Match Between Channels (∆RON) | 0.4 Ω | 1.4 Ω | Ω | VS = 0 V to VDD, IS = 10 mA |
| On-Resistance Flatness (RFLAT(ON)) | 3.5 Ω | Ω | VS = 0 V to VDD, IS = 10 mA | |
| Power Supply Voltage (VDD) | 2.7 V to 5.5 V | V | ||
| Serial Clock Input Rate | Up to 30 MHz | MHz | ||
| Package Type | 16-TSSOP |
Key Features
- Serially-Controlled 3-Wire Interface: Compatible with SPI, QSPI, MICROWIRE, and some DSP interface standards.
- Low On-Resistance: Typical on-resistance of 6 Ω, ensuring minimal signal degradation.
- Flat On-Resistance: On-resistance is very flat over the full signal range, enhancing performance in various applications.
- Bidirectional Switches: Each switch conducts equally well in both directions when on, suitable for both multiplexing and demultiplexing.
- Daisy-Chaining Capability: The output of the input shift register (DOUT) allows multiple parts to be daisy-chained.
- Low Power Consumption: Typical current consumption of 10 µA at VDD = 5.5 V.
- Automotive Qualification: Qualified for automotive applications, ensuring reliability in demanding environments).
Applications
- Data Acquisition Systems: Ideal for routing analog signals in data acquisition systems).
- Communication Systems: Used in communication systems for signal switching and routing).
- Relay Replacement: Can replace mechanical relays in various applications due to its low on-resistance and reliability).
- Audio and Video Switching: Suitable for audio and video switching applications where low distortion is critical).
Q & A
- What is the ADG738BRU used for?
The ADG738BRU is used as an 8-channel matrix switch in various applications such as data acquisition systems, communication systems, relay replacement, and audio/video switching.
- What is the voltage range of the ADG738BRU?
The ADG738BRU operates within a voltage range of 2.7 V to 5.5 V.
- What is the typical on-resistance of the ADG738BRU?
The typical on-resistance of the ADG738BRU is 6 Ω.
- Is the ADG738BRU compatible with SPI interfaces?
Yes, the ADG738BRU is compatible with SPI, QSPI, MICROWIRE, and some DSP interface standards.
- Can multiple ADG738BRU devices be daisy-chained?
Yes, the output of the input shift register (DOUT) allows multiple parts to be daisy-chained.
- What is the package type of the ADG738BRU?
The ADG738BRU comes in a 16-TSSOP package.
- Is the ADG738BRU qualified for automotive applications?
Yes, the ADG738BRU is qualified for automotive applications.
- What is the maximum serial clock input rate for the ADG738BRU?
The maximum serial clock input rate for the ADG738BRU is up to 30 MHz.
- How does the ADG738BRU handle power-on reset?
On power-up, the internal input shift register contains all zeros, and all switches are in the off state.
- What are the key benefits of using the ADG738BRU in audio and video switching applications?
The ADG738BRU offers low on-resistance and flat on-resistance over the full signal range, making it suitable for audio and video switching applications where low distortion is critical.
