Overview
The ADG774BRQ-REEL7 is a monolithic CMOS device produced by Analog Devices Inc., comprising four 2:1 multiplexer/demultiplexers with high impedance outputs. This component is designed to operate with low power dissipation while providing high switching speed and low on resistance. It is fabricated using a CMOS process, which extends the signal range to the supply rails and ensures ultralow power dissipation, making it ideal for portable and battery-powered instruments.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions |
|---|---|---|---|---|
| On Resistance (RON) | 4 Ω | 9 Ω | Ω | VD = 0 V to VDD, IS = –10 mA |
| On Resistance Match between Channels (ΔRON) | 0.15 Ω | 0.5 Ω | Ω | VD = 0 V to VDD, IS = –10 mA |
| On Resistance Flatness (RFLAT(ON)) | 2 Ω | 4 Ω | Ω | VD = 0 V to VDD, IS = –10 mA |
| Source OFF Leakage (IS(OFF)) | ±0.01 nA | ±1.5 nA | nA | VD = 3 V, VS = 1 V; VD = 1 V, VS = 3 V |
| Drain OFF Leakage (ID(OFF)) | ±0.01 nA | ±1.5 nA | nA | VD = 3 V, VS = 1 V; VD = 1 V, VS = 3 V |
| Switching Time (tON) | 7 ns | 14 ns | ns | CL = 35 pF, RL = 50 Ω, VS = 1.5 V |
| Switching Time (tOFF) | 4 ns | 8 ns | ns | CL = 35 pF, RL = 50 Ω, VS = 1.5 V |
| Bandwidth (-3 dB) | 240 MHz | MHz | RL = 50 Ω | |
| Distortion | 0.5% | % | RL = 100 Ω | |
| Supply Voltage | 3.3 V / 5 V | V | ||
| Operating Temperature Range | -40°C to +125°C | °C | ||
| Package Type | QSOP-16 |
Key Features
- Wide Bandwidth: The ADG774BRQ-REEL7 has a -3 dB bandwidth of 240 MHz, making it suitable for high-speed applications such as USB 1.1 signal switching and fast Ethernet signals.
- Ultralow Power Dissipation: The CMOS construction ensures very low power consumption, with a typical quiescent supply current of 1 nA.
- Extended Signal Range: The signal range fully extends to the supply rails, providing excellent linearity and low distortion when switching audio and video signals.
- Fast Switching Times: With switching times of 7 ns (tON) and 4 ns (tOFF), this component is ideal for applications requiring rapid signal switching.
- TTL/CMOS Compatible: The device is compatible with TTL and CMOS logic, ensuring seamless integration into various digital systems.
- Break-Before-Make Switching: This feature prevents channel shorting when the switches are configured as a multiplexer.
- Low Leakage Over Temperature: The component exhibits low leakage currents over the entire operating temperature range.
Applications
- USB Signal Switching Circuits: Suitable for switching USB 1.1 data signals.
- Cell Phones and PDAs: Ideal for battery-powered systems due to its low power consumption.
- Communications Systems: Used in data acquisition systems and token ring networks (4 Mbps/16 Mbps).
- Audio and Video Switching: Suitable for switching audio and video signals due to its high bandwidth and low distortion.
- Relay Replacement: Can replace mechanical relays in various applications.
Q & A
- What is the typical on resistance of the ADG774BRQ-REEL7?
The typical on resistance is 4 Ω, with a maximum of 9 Ω.
- What is the bandwidth of the ADG774BRQ-REEL7?
The bandwidth is greater than 240 MHz.
- What are the typical switching times for the ADG774BRQ-REEL7?
The typical switching times are 7 ns for tON and 4 ns for tOFF.
- Is the ADG774BRQ-REEL7 compatible with TTL and CMOS logic?
Yes, it is compatible with both TTL and CMOS logic.
- What is the operating temperature range of the ADG774BRQ-REEL7?
The operating temperature range is -40°C to +125°C.
- What type of package does the ADG774BRQ-REEL7 come in?
The component comes in a QSOP-16 package.
- What are some common applications of the ADG774BRQ-REEL7?
Common applications include USB signal switching, cell phones, PDAs, communications systems, and audio/video switching.
- Does the ADG774BRQ-REEL7 exhibit break-before-make switching action?
Yes, it does exhibit break-before-make switching action to prevent channel shorting.
- What is the typical distortion of the ADG774BRQ-REEL7?
The typical distortion is 0.5%.
- How does the ADG774BRQ-REEL7 handle signal leakage over temperature?
The component exhibits low leakage currents over the entire operating temperature range.
