Overview
The ADG508FBRN, produced by Analog Devices Inc., is an 8-channel fault-protected CMOS analog multiplexer. This device is part of the ADG508F series, which includes various package options such as the 16-Lead SOIC (Small Outline Integrated Circuit) package for the ADG508FBRN model. The ADG508F multiplexer switches one of eight inputs to a common output, controlled by 3-bit binary address lines A0, A1, and A2. An additional enable (EN) input allows for the device to be enabled or disabled, with all channels switched off when disabled.
Key Specifications
| Parameter | Typical Value | Maximum Value | Conditions |
|---|---|---|---|
| On Resistance (RON) | 390 Ω | - | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Switching Time (tTRANSITION) | 200 ns | 300 ns | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Off Time (tOPEN) | 50 ns | 25 ns min | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Enable Time (tON EN) | 200 ns | 300 ns | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Disable Time (tOFF EN) | 200 ns | 300 ns | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Input Voltage Range | -40 V to +55 V | - | Irrespective of power supplies |
| Leakage Current (IS Off) | 0.02 nA | 1 nA | V1 = 10 V/GND, V2 = GND/10 V |
| Off Isolation | 68 dB | 50 dB min | VEN = 0.8 V, RL = 1 kΩ, CL = 15 pF |
Key Features
- Fault Protection: The ADG508F can withstand continuous overvoltage inputs from -40 V to +55 V, protecting the device and signal sources during power loss or overvoltage conditions.
- Low RON: The device features a low on-resistance of up to 390 Ω, ensuring minimal signal degradation.
- Fast Switching Times: Fast transition times (tTRANSITION) and enable/disable times (tON EN, tOFF EN) ensure quick and efficient switching.
- Break-Before-Make Switching: This feature prevents momentary shorting of input signals, protecting the circuitry.
- Trench Isolation: Prevents latch-up by separating the p and n-channel MOSFETs with a dielectric trench.
- Low Leakage Currents: Minimal leakage currents when the switch is off, making it suitable for high precision circuits.
Applications
- Industrial Automation: Used in control systems and signal routing in industrial environments where fault protection is crucial.
- Medical Devices: Suitable for medical equipment requiring reliable and fault-tolerant signal switching.
- Aerospace and Defense: Applied in systems that demand high reliability and protection against overvoltages and power loss.
- Automotive Systems: Used in automotive electronics for signal routing and protection against transient voltages.
- Test and Measurement Equipment: Utilized in test equipment for reliable signal switching and protection.
Q & A
- What is the ADG508FBRN?
The ADG508FBRN is an 8-channel fault-protected CMOS analog multiplexer produced by Analog Devices Inc.
- How many input channels does the ADG508F have?
The ADG508F has eight single input channels.
- What is the control mechanism for the ADG508F?
The ADG508F is controlled by 3-bit binary address lines A0, A1, and A2, and an enable (EN) input.
- What is the input voltage range the ADG508F can withstand?
The ADG508F can withstand continuous overvoltage inputs from -40 V to +55 V.
- What is the typical on-resistance (RON) of the ADG508F?
The typical on-resistance (RON) is 390 Ω.
- Does the ADG508F feature break-before-make switching?
Yes, the ADG508F features break-before-make switching to protect against momentary shorting of input signals.
- How does the ADG508F protect against latch-up?
The ADG508F uses trench isolation to separate the p and n-channel MOSFETs, preventing latch-up.
- What are the typical switching times for the ADG508F?
The typical transition time (tTRANSITION) is 200 ns, and the enable/disable times (tON EN, tOFF EN) are also around 200 ns.
- What is the leakage current when the switch is off?
The leakage current when the switch is off (IS Off) is typically 0.02 nA.
- In what types of applications is the ADG508F commonly used?
The ADG508F is commonly used in industrial automation, medical devices, aerospace and defense, automotive systems, and test and measurement equipment.
