Overview
The ADG438FBRZ-REEL, produced by Analog Devices Inc., is a CMOS analog multiplexer that features eight single-channel switches. This device is part of the ADG438F series, known for its high reliability and robust performance in various applications. The ADG438F multiplexer provides fault protection, ensuring that both the device and the signal source are safeguarded against overvoltage and power loss conditions. It can withstand continuous overvoltage inputs from −40 V to +55 V and maintains a low leakage current during fault conditions, making it ideal for critical systems.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit | Test Conditions |
|---|---|---|---|---|
| Number of Inputs | 8 | - | - | - |
| Number of Outputs | 1 | - | - | - |
| On-Resistance (RON) | 270 Ω | 450 Ω | Ω | −10 V ≤ VS ≤ +10 V, IS = 1 mA |
| On-Resistance Flatness (RFLAT) | 9 % | 10 % | % | −10 V ≤ VS ≤ +10 V, IS = 1 mA |
| Turn-On Time (tON) | 180 ns | 345 ns | ns | RL = 1 kΩ, CL = 35 pF, VS = 5 V |
| Turn-Off Time (tOFF) | 100 ns | 173 ns | ns | RL = 1 kΩ, CL = 35 pF, VS = 5 V |
| Settling Time (tSETT) | 1 μs | 2.5 μs | μs | RL = 1 kΩ, CL = 35 pF, 0.1% and 0.01% accuracy |
| Charge Injection | 15 pC | - | pC | VS = 0 V, RS = 0 Ω, CL = 1 nF |
| Off Isolation | 93 dB | - | dB | RL = 1 kΩ, CL = 15 pF, f = 100 kHz, VS = 7 V rms |
| Operating Supply Current | 50 μA | - | μA | - |
| Power Dissipation | 2.6 mW | - | mW | - |
| Operating Temperature Range | -40°C to +125°C | - | °C | - |
Key Features
- Fault Protection: The ADG438FBRZ-REEL can withstand continuous overvoltage inputs from −40 V to +55 V, ensuring protection of both the device and the signal source during fault conditions.
- Low On-Resistance: Typical on-resistance of 270 Ω, which is crucial for minimizing signal attenuation and distortion.
- Fast Switching Times: Turn-on and turn-off times are as low as 180 ns and 100 ns, respectively, making it suitable for high-speed applications.
- Low Charge Injection: Charge injection of 15 pC, which is important for maintaining signal integrity in sensitive applications.
- Wide Operating Temperature Range: Operates reliably from −40°C to +125°C, making it versatile for various environmental conditions.
- Compact Packaging: Available in a 16-lead SOIC package, which is convenient for surface-mount applications.
Applications
- Data Acquisition Systems: Ideal for switching multiple analog signals in data acquisition systems where reliability and low signal distortion are critical.
- Industrial and Process Control Systems: Used in industrial control systems for signal routing and switching, ensuring robust performance under various conditions.
- Avionics Test Equipment: Suitable for avionics test equipment due to its high reliability and fault protection features.
- Signal Routing Between Systems: Effective for routing signals between different systems, ensuring minimal signal loss and distortion.
- High Reliability Control Systems: Used in high reliability control systems where fault tolerance and low leakage current are essential.
Q & A
- What is the primary function of the ADG438FBRZ-REEL?
The ADG438FBRZ-REEL is a CMOS analog multiplexer that switches one of eight inputs to a common output based on the 3-bit binary address lines A0, A1, and A2.
- What is the on-resistance of the ADG438FBRZ-REEL?
The typical on-resistance is 270 Ω, with a maximum value of 450 Ω at −10 V ≤ VS ≤ +10 V and IS = 1 mA.
- What are the turn-on and turn-off times of the ADG438FBRZ-REEL?
The turn-on time (tON) is typically 180 ns, and the turn-off time (tOFF) is typically 100 ns, with maximum values of 345 ns and 173 ns, respectively.
- What is the charge injection of the ADG438FBRZ-REEL?
The charge injection is typically 15 pC at VS = 0 V, RS = 0 Ω, and CL = 1 nF.
- What is the operating temperature range of the ADG438FBRZ-REEL?
The device operates reliably from −40°C to +125°C.
- What kind of fault protection does the ADG438FBRZ-REEL offer?
The device can withstand continuous overvoltage inputs from −40 V to +55 V and maintains a low leakage current during fault conditions, protecting both the device and the signal source.
- What are some common applications of the ADG438FBRZ-REEL?
Common applications include data acquisition systems, industrial and process control systems, avionics test equipment, signal routing between systems, and high reliability control systems.
- What is the packaging type of the ADG438FBRZ-REEL?
The device is available in a 16-lead SOIC package, suitable for surface-mount applications.
- What is the operating supply current of the ADG438FBRZ-REEL?
The operating supply current is typically 50 μA.
- What is the power dissipation of the ADG438FBRZ-REEL?
The power dissipation is typically 2.6 mW.
