Overview
The ADG731BCPZ from Analog Devices Inc. is a high-performance, monolithic CMOS analog multiplexer. This device is designed to switch one of 32 inputs (S1–S32) to a common output, D, making it ideal for various signal routing applications. It features a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and some DSP interface standards. The ADG731BCPZ operates from a single supply of 1.8 V to 5.5 V or a ±2.5 V dual supply, ensuring versatility in different operating environments.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 32 (single 32:1), 16 (dual/differential 16:1) |
| Supply Voltage | 1.8 V to 5.5 V, ±2.5 V |
| On Resistance | Approx. 3 Ω |
| On Resistance Flatness | Very flat over the full signal range |
| Leakage Current | ±0.05 nA typ, ±2.5 nA max |
| Switching Time | 42 ns typ, 60-90 ns max |
| Break-Before-Make Time Delay | 30 ns typ, 1 ns min |
| Charge Injection | 5 pC typ |
| Package | 48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP) or 48-Lead TQFP |
| ESD Protection | Yes |
Key Features
- 3-wire SPI compatible serial interface
- Low on-resistance of approximately 3 Ω, minimizing power consumption and heat generation
- Very low leakage currents, ensuring high signal integrity and accuracy
- Rail-to-rail operation and power-on reset
- TTL/CMOS compatible inputs
- Break-before-make switching action to prevent momentary shorting when switching channels
- Integrated ESD protection for enhanced reliability
Applications
- Optical applications
- Data acquisition systems
- Communication systems
- Relay replacement
- Audio and video switching
- Battery-powered systems
- Medical instrumentation
- Automatic test equipment
Q & A
- Q: What is the primary function of the ADG731BCPZ?
A: The ADG731BCPZ is a 32-channel analog multiplexer that switches one of 32 inputs to a common output, D, and can also be configured as a dual or differential 16-channel multiplexer.
- Q: What is the operating voltage range of the ADG731BCPZ?
A: The ADG731BCPZ operates from a single supply of 1.8 V to 5.5 V or a ±2.5 V dual supply.
- Q: What is the on-resistance of the ADG731BCPZ?
A: The on-resistance of the ADG731BCPZ is approximately 3 Ω.
- Q: What type of interface does the ADG731BCPZ use?
A: The ADG731BCPZ uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and some DSP interface standards.
- Q: What are the key applications of the ADG731BCPZ?
A: The ADG731BCPZ is used in optical applications, data acquisition systems, communication systems, relay replacement, audio and video switching, battery-powered systems, medical instrumentation, and automatic test equipment.
- Q: What is the package type of the ADG731BCPZ?
A: The ADG731BCPZ is available in a 48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP) or a 48-Lead TQFP package.
- Q: Does the ADG731BCPZ have ESD protection?
A: Yes, the ADG731BCPZ has integrated ESD protection.
- Q: What is the switching time of the ADG731BCPZ?
A: The switching time of the ADG731BCPZ is typically 42 ns, with a maximum of 60-90 ns.
- Q: What is the break-before-make time delay of the ADG731BCPZ?
A: The break-before-make time delay of the ADG731BCPZ is typically 30 ns, with a minimum of 1 ns.
- Q: Where can I find detailed information about the ADG731BCPZ, such as application notes and factory information?
A: You can find detailed information about the ADG731BCPZ on the Analog Devices website, or through distributors like Ovaga Technologies, which provide comprehensive details including application notes, factory information, and images.
