Overview
The ADG508FBRW, produced by Analog Devices Inc., is a CMOS analog multiplexer that offers high reliability and robust performance. This device is part of the ADG508F series, which includes the ADG508F and ADG509F models. The ADG508F specifically comprises eight single channels, allowing it to switch one of eight inputs to a common output based on the state of three binary address lines (A0, A1, and A2) and an enable input (EN). This multiplexer is designed to operate over a wide range of supply voltages and provides comprehensive fault protection, making it suitable for various industrial and automotive applications.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Number of Channels | 8 single channels | |
| Address Lines | 3-bit binary (A0, A1, A2) | |
| Enable Input | EN | |
| Supply Voltage Range | 10.8 V to 16.5 V (single- or dual-supply) | |
| On Resistance (RON) | 390 Ω maximum | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Off Isolation | 70 dB typical at 1 MHz | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Charge Injection | 10 pC typical | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Switching Time | tTRANSITION = 150 ns typical | VDD = +15 V, VSS = -15 V, GND = 0 V |
| Fault Protection | Continuous overvoltage inputs from -40 V to +55 V | |
| Leakage Current | Few nanoamperes during fault conditions | Power supplies off |
Key Features
- Fault Protection: The ADG508F can withstand continuous overvoltage inputs from -40 V to +55 V, protecting the device and signal sources during fault conditions.
- Low On Resistance (RON): Maximum RON of 390 Ω, ensuring minimal signal degradation.
- Fast Switching Times: Transition time of 150 ns, enabling high-speed switching applications.
- Break-Before-Make Switching: Prevents momentary shorting of input signals.
- Trench Isolation: Eliminates latch-up by separating p and n-channel MOSFETs with a dielectric trench.
- Wide Supply Voltage Range: Operates comfortably in the 10.8 V to 16.5 V single- or dual-supply range.
- TTL and 5 V CMOS Logic-Compatible Digital Inputs: Ensures compatibility with a variety of digital control systems.
Applications
- Industrial Automation: Suitable for use in industrial control systems where robust and reliable signal switching is required.
- Automotive Systems: Can be used in automotive applications due to its fault protection and wide operating voltage range.
- Medical Equipment: Applicable in medical devices where precise and reliable signal switching is critical.
- Test and Measurement Equipment: Ideal for use in test and measurement instruments that require high-speed and low-distortion signal switching.
Q & A
- What is the number of channels in the ADG508F?
The ADG508F has eight single channels.
- How are the channels selected in the ADG508F?
The channels are selected using three binary address lines (A0, A1, and A2) and an enable input (EN).
- What is the supply voltage range for the ADG508F?
The ADG508F operates in the 10.8 V to 16.5 V single- or dual-supply range.
- What is the maximum on resistance (RON) of the ADG508F?
The maximum on resistance (RON) is 390 Ω.
- Does the ADG508F provide fault protection?
Yes, the ADG508F can withstand continuous overvoltage inputs from -40 V to +55 V.
- What is the switching time of the ADG508F?
The transition time is typically 150 ns.
- Is the ADG508F protected against latch-up?
Yes, the ADG508F uses trench isolation to eliminate latch-up.
- What is the leakage current during fault conditions?
The leakage current is limited to a few nanoamperes during fault conditions with power supplies off.
- Are the digital inputs of the ADG508F compatible with TTL and 5 V CMOS logic?
Yes, the digital inputs are TTL and 5 V CMOS logic-compatible.
- In what types of applications is the ADG508F commonly used?
The ADG508F is commonly used in industrial automation, automotive systems, medical equipment, and test and measurement equipment.
