Overview
The ADG508FBRWZ is an 8-channel CMOS analog multiplexer produced by Analog Devices Inc. This device is part of the ADG508F series, which includes several package options, with the BRWZ suffix indicating a 16-lead SOIC Wide package. The ADG508F multiplexer is designed to switch one of eight inputs to a common output, controlled by 3-bit binary address lines A0, A1, and A2, and an enable input (EN) to activate or deactivate the device. It features fault protection, allowing it to withstand continuous overvoltage inputs from -40 V to +55 V, even when power supplies are off, ensuring protection for both the device and the signal sources.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Number of Channels | 8 single channels | |
| Package Type | 16-Lead SOIC Wide | |
| Supply Voltage Range | 10.8 V to 16.5 V (single or dual supply) | |
| On-Resistance (RON) | 390 Ω maximum | VDD - VSS = 15 V, VD = 10 V, ID = 1 mA |
| Leakage Current (IS Off) | Few nanoamperes | Power supplies off |
| Input Voltage Range | VSS to VDD | |
| Switching Time (tON, tOFF) | 200 ns typical, 300 ns maximum | |
| Off Isolation | 68 dB typical | VEN = 0.8 V, RL = 1 kΩ, CL = 15 pF |
| Charge Injection | 4 pC typical |
Key Features
- Fault Protection: The device can withstand continuous overvoltage inputs from -40 V to +55 V, protecting both the device and the signal sources.
- Break-Before-Make Switching: Ensures that input signals are protected against momentary shorting.
- Low Leakage Current: Leakage currents are in the range of a few nanoamperes when the power supplies are off.
- Fast Switching Times: Switching times are typically 200 ns with a maximum of 300 ns.
- Trench Isolation: Prevents latch-up by separating the p and n-channel MOSFETs with a dielectric trench.
- Wide Signal Range: The enhanced LC2MOS process allows for an increased analog signal range from VSS to VDD.
Applications
The ADG508FBRWZ is suitable for various applications requiring high reliability and fault tolerance, such as:
- Industrial Automation: For controlling and switching analog signals in harsh environments.
- Medical Devices: Where fault protection and low leakage currents are critical for safety and precision.
- Aerospace and Defense: For applications requiring robust and reliable signal switching under extreme conditions.
- Test and Measurement Equipment: To ensure accurate and reliable signal routing and switching.
Q & A
- What is the package type of the ADG508FBRWZ?
The ADG508FBRWZ comes in a 16-Lead SOIC Wide package.
- What is the supply voltage range for the ADG508FBRWZ?
The device operates within a supply voltage range of 10.8 V to 16.5 V, either single or dual supply.
- How many channels does the ADG508FBRWZ have?
The ADG508FBRWZ has eight single channels.
- What is the on-resistance (RON) of the ADG508FBRWZ?
The on-resistance is 390 Ω maximum.
- Does the ADG508FBRWZ have fault protection?
Yes, it can withstand continuous overvoltage inputs from -40 V to +55 V, even when power supplies are off.
- What is the switching time of the ADG508FBRWZ?
The switching time is typically 200 ns with a maximum of 300 ns.
- What is the leakage current when the power supplies are off?
The leakage current is limited to a few nanoamperes.
- Does the ADG508FBRWZ feature break-before-make switching?
Yes, it ensures that input signals are protected against momentary shorting.
- What is the off-isolation of the ADG508FBRWZ?
The off-isolation is 68 dB typical.
- What is the charge injection of the ADG508FBRWZ?
The charge injection is 4 pC typical.
