Overview
The ADG5408BRUZ is a high-voltage, latch-up proof, 8-channel analog multiplexer manufactured by Analog Devices Inc. This device is part of the ADG5408/ADG5409 family and is designed to switch one of eight inputs to a common output, controlled by 3-bit binary address lines (A0, A1, and A2). It features an enable input (EN) that allows the device to be enabled or disabled, with all channels switching off when EN is disabled. The ADG5408BRUZ is known for its flat on-resistance profile over the full analog input range, ensuring good linearity and low distortion, making it suitable for applications involving audio and video signal switching.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions |
|---|---|---|---|---|
| Analog Signal Range | 0 V to VDD | V | ||
| On Resistance (RON) | 14.5 Ω | 23 Ω | Ω | VS = 0 V to 30 V, IS = −10 mA |
| Transition Time (tTRANSITION) | 230 ns | 430 ns | ns | RL = 300 Ω, CL = 35 pF, VS = 8 V |
| Enable Time (tON) | 215 ns | 397 ns | ns | RL = 300 Ω, CL = 35 pF, VS = 8 V |
| Disable Time (tOFF) | 134 ns | 209 ns | ns | RL = 300 Ω, CL = 35 pF, VS = 8 V |
| Break-Before-Make Time Delay (tD) | 118 ns | ns | RL = 300 Ω, VS = 6 V, f = 1 MHz | |
| Input Low Voltage (VINL) | 0.8 V | V | ||
| Input High Voltage (VINH) | 2.0 V | V | ||
| Digital Input Capacitance (CIN) | 3 pF | pF |
Key Features
- Trench Isolation: Guards against latch-up by separating P and N channel transistors with a dielectric trench, preventing latch-up even under severe overvoltage conditions.
- Low RON: Features low on-resistance, ensuring minimal signal distortion.
- Dual-Supply Operation: Can be operated from dual supplies up to ±22 V, making it suitable for bipolar analog signals.
- Single-Supply Operation: Also supports single-supply operation for unipolar analog signals.
- High Switching Speed: Suitable for video signal switching due to its high switching speed.
- Internal Voltage Generator: Does not require external logic power supply as it generates the logic power internally.
Applications
- Relay Replacement: Can replace mechanical relays in various applications.
- Automatic Test Equipment: Used in test and measurement equipment.
- Data Acquisition: Suitable for data acquisition systems.
- Instrumentation: Used in various instrumentation applications.
- Avionics: Applicable in avionics systems.
- Audio and Video Switching: Ideal for switching audio and video signals.
- Communication Systems: Used in communication systems.
Q & A
- What is the ADG5408BRUZ used for?
The ADG5408BRUZ is an 8-channel analog multiplexer used to switch one of eight inputs to a common output, controlled by 3-bit binary address lines. - What are the key features of the ADG5408BRUZ?
Key features include trench isolation, low on-resistance, dual-supply and single-supply operation, high switching speed, and an internal voltage generator. - What is the analog signal range of the ADG5408BRUZ?
The analog signal range is from 0 V to VDD. - What is the typical on-resistance of the ADG5408BRUZ?
The typical on-resistance is 14.5 Ω. - How is the device enabled or disabled?
The device is enabled or disabled using the EN input. - What are some common applications of the ADG5408BRUZ?
Common applications include relay replacement, automatic test equipment, data acquisition, instrumentation, avionics, audio and video switching, and communication systems. - Can the ADG5408BRUZ operate with dual supplies?
Yes, it can operate with dual supplies up to ±22 V. - What is the transition time of the ADG5408BRUZ?
The typical transition time is 230 ns. - Does the ADG5408BRUZ require an external logic power supply?
No, it generates the logic power internally. - What is the purpose of the trench isolation in the ADG5408BRUZ?
The trench isolation guards against latch-up by separating P and N channel transistors.
