Overview
The ADG774BRQ-500RL7, produced by Analog Devices Inc., is a monolithic CMOS device that integrates four 2:1 multiplexer/demultiplexers with high impedance outputs. This component is designed to offer low power dissipation, high switching speed, and low on resistance, making it ideal for a variety of applications, particularly in portable and battery-powered instruments.
The ADG774 operates from a single 3 V or 5 V supply and is TTL logic compatible. It features a wide bandwidth of over 200 MHz, which is suitable for switching USB data signals, fast Ethernet signals, audio, and video signals. The CMOS construction ensures ultralow power dissipation, and the device exhibits break-before-make switching action to prevent channel shorting.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions |
|---|---|---|---|---|
| Analog Signal Range | 0 to 5 V | V | ||
| On Resistance (RON) | 2.2 Ω | 4 Ω | Ω | VD = 0 V to 1 V, IS = −10 mA |
| On Resistance Match Between Channels (∆RON) | 0.15 Ω | 0.5 Ω | Ω | VD = 0 V to 1 V, IS = −10 mA |
| On Resistance Flatness (RFLAT(ON)) | 0.3 Ω | 0.6 Ω | Ω | VD = 0 V to 1 V, IS = −10 mA |
| Source Off Leakage (IS (OFF)) | ±0.001 nA | ±0.1 nA | nA | VD = 3 V/1 V |
| Channel On Leakage (ID, IS(ON)) | ±0.001 nA | ±0.25 nA | nA | VD = VS = 2 V/1 V |
| Bandwidth (-3 dB) | 400 MHz | MHz | RL = 50 Ω | |
| Distortion | 0.5% | 1.5% | % | RL = 100 Ω |
| Switching Times (tON, tOFF) | tON: 7 ns, tOFF: 4 ns | tON: 20 ns, tOFF: 9 ns | ns | CL = 35 pF, RL = 50 Ω, VS = 1.5 V |
| Operating Temperature Range | −40°C to +125°C | °C |
Key Features
- Low Power Dissipation: CMOS construction ensures ultralow power dissipation, making it suitable for portable and battery-powered instruments.
- Wide Bandwidth: Greater than 200 MHz, suitable for switching USB data signals, fast Ethernet signals, audio, and video signals.
- Low On Resistance: Typical on resistance of 2.2 Ω with a flat on resistance profile over the full analog input range.
- Fast Switching Times: tON of 7 ns and tOFF of 4 ns.
- Break-Before-Make Switching: Prevents channel shorting when the switches are configured as a multiplexer.
- Low Distortion: Typically 0.5%, ensuring excellent linearity when switching audio signals.
- Extended Signal Range: Signal range fully extends to the supply rails.
- TTL/CMOS Compatible: Compatible with TTL and CMOS logic.
- Low Leakage Over Temperature: Minimal leakage current over the operating temperature range.
Applications
- USB Signal Switching Circuits: Suitable for USB 1.1 signal switching.
- Cell Phones and PDAs: Ideal for battery-powered systems.
- 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 low distortion and high bandwidth.
- Relay Replacement: Can replace mechanical relays in various applications.
Q & A
- What is the typical on resistance of the ADG774?
The typical on resistance of the ADG774 is 2.2 Ω.
- What is the bandwidth of the ADG774?
The bandwidth of the ADG774 is greater than 200 MHz, typically up to 400 MHz.
- What are the operating supply voltages for the ADG774?
The ADG774 operates from a single 3 V or 5 V supply.
- What is the switching time of the ADG774?
The switching times are tON of 7 ns and tOFF of 4 ns).
- Is the ADG774 compatible with TTL and CMOS logic?
- What is the operating temperature range of the ADG774?
The operating temperature range is −40°C to +125°C).
- What are some common applications of the ADG774?
- Does the ADG774 exhibit break-before-make switching action?
- What is the typical distortion of the ADG774?
- What is the package type of the ADG774BRQ-500RL7?
