Overview
The ADG774ABCPZ-R2, 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 while providing high switching speed and low on resistance. The ADG774A operates from a single 3.3 V or 5 V supply and is TTL logic-compatible, making it suitable for a wide range of applications requiring high-speed data signal switching.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions/Comments |
|---|---|---|---|---|
| Analog Signal Range | 0 V to VDD | 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 | ±1 nA | nA | VD = 3 V/1 V, VS = 1 V/3 V |
| Break-Before-Make Time Delay (tD) | 3 ns | ns | CL = 35 pF, RL = 50 Ω, VS1 = VS2 = 2 V | |
| Off Isolation | −65 dB | dB | f = 10 MHz, RL = 50 Ω | |
| Channel-to-Channel Crosstalk | −70 dB | dB | f = 10 MHz, RL = 50 Ω | |
| Bandwidth (−3 dB) | 400 MHz | MHz | RL = 50 Ω | |
| Distortion | 0.3 % | % | RL = 100 Ω | |
| Power Supply Voltage (VDD) | 3.3 V / 5 V | V | ||
| Operating Temperature Range | −40°C to +85°C | °C |
Key Features
- Wide bandwidth data rates of >400 MHz, making it suitable for high-speed data signal switching.
- Ultralow power dissipation, ideal for battery-powered and portable devices.
- Low on resistance (typically 2.2 Ω) and low on resistance variation (< 0.5 Ω) over the input signal range.
- Low distortion (typically 0.3%) and flat on resistance profile over the full analog input range, ensuring excellent linearity.
- Break-before-make switching action to prevent channel shorting when configured as a multiplexer.
- High off isolation (typically −65 dB @ 10 MHz) and low crosstalk (typically −70 dB @ 10 MHz).
- TTL/CMOS compatible logic inputs.
- Available in compact 16-lead LFCSP (3mm x 3mm w/ EP) and QSOP packages.
Applications
- USB 1.1 signal switching circuits.
- Cell phones and PDAs.
- Battery-powered systems.
- Communications systems.
- Data acquisition systems.
- Token Ring 4 Mbps/16 Mbps.
- Audio and video switching.
- Relay replacement in various applications.
Q & A
- What is the typical bandwidth of the ADG774A?
The typical bandwidth of the ADG774A is greater than 400 MHz.
- What is the on resistance of the ADG774A?
The on resistance of the ADG774A is typically 2.2 Ω, with a maximum of 4 Ω.
- What is the operating temperature range of the ADG774A?
The operating temperature range of the ADG774A is −40°C to +85°C.
- Is the ADG774A TTL logic-compatible?
Yes, the ADG774A is TTL logic-compatible.
- What is the typical distortion of the ADG774A?
The typical distortion of the ADG774A is 0.3%.
- What type of switching action does the ADG774A exhibit?
The ADG774A exhibits break-before-make switching action.
- What are the available package types for the ADG774A?
The ADG774A is available in 16-lead LFCSP (3mm x 3mm w/ EP) and QSOP packages.
- What is the typical off isolation of the ADG774A?
The typical off isolation of the ADG774A is −65 dB @ 10 MHz.
- What is the typical crosstalk of the ADG774A?
The typical crosstalk of the ADG774A is −70 dB @ 10 MHz.
- What is the power supply voltage range for the ADG774A?
The power supply voltage range for the ADG774A is 3.3 V / 5 V.
