Overview
The ADG444BRZ, produced by Analog Devices Inc., is a monolithic CMOS analog switch that features four independently selectable single-pole single-throw (SPST) switches. This device is designed using the enhanced LC2MOS process, which provides low power dissipation, high switching speed, and low on-resistance. The ADG444BRZ is particularly suited for applications requiring high linearity and low distortion, such as audio and video signal switching.
Key Specifications
| Parameter | Rating/Value |
|---|---|
| VDD to VSS | 44 V |
| VDD to GND | −0.3 V to +25 V |
| VSS to GND | +0.3 V to −25 V |
| VL to GND | −0.3 V to VDD + 0.3 V |
| Analog, Digital Inputs | VSS − 2 V to VDD + 2 V or 30 mA, whichever occurs first |
| Continuous Current, S or D | 30 mA |
| Peak Current, S or D (Pulsed at 1 ms, 10% Duty Cycle Max) | 100 mA |
| Operating Temperature Range (Industrial, B Version) | −40°C to +85°C |
| Storage Temperature Range | −65°C to +150°C |
| Junction Temperature | 150°C |
| On Resistance (RON) | < 70 Ω |
| ΔRON (On Resistance Flatness) | 9 Ω max |
| RON Match | 3 Ω max |
| Switching Time (tON) | < 110 ns |
| Switching Time (tOFF) | < 60 ns |
| Leakage Current | 3 nA max |
| Charge Injection | 6 pC max |
Key Features
- Low on-resistance (<70 Ω) and low ΔRON (9 Ω max) for good linearity and low distortion.
- Low power dissipation and fast switching times (tON < 110 ns, tOFF < 60 ns).
- Low leakage currents (3 nA max) and low charge injection (6 pC max).
- Break-before-make switching action and latch-up proof.
- Extended signal range from VSS to VDD.
- Plug-in upgrade for DG201A/ADG201A, DG202A/ADG202A, DG211/ADG211A and plug-in replacement for DG441/DG442/DG444.
Applications
- Audio and video switching.
- Automatic test equipment.
- Precision data acquisition.
- Battery-powered systems.
- Sample-and-hold systems.
- Communication systems.
Q & A
- What is the ADG444BRZ? The ADG444BRZ is a monolithic CMOS analog switch with four independently selectable SPST switches.
- What is the maximum supply voltage for the ADG444BRZ? The maximum supply voltage (VDD to VSS) is 44 V.
- What are the key features of the ADG444BRZ? Key features include low on-resistance, low ΔRON, low power dissipation, fast switching times, and low leakage currents.
- What are the typical applications of the ADG444BRZ? Typical applications include audio and video switching, automatic test equipment, precision data acquisition, battery-powered systems, sample-and-hold systems, and communication systems.
- How does the ADG444BRZ switch on and off? The ADG444BRZ switches turn on with a logic low applied to the appropriate control input.
- What is the operating temperature range for the ADG444BRZ? The operating temperature range is −40°C to +85°C for the industrial (B Version).
- Does the ADG444BRZ have any special power supply requirements? Yes, the ADG444BRZ requires a 5 V logic power supply applied to the VL pin.
- What is the maximum on-resistance of the ADG444BRZ? The maximum on-resistance (RON) is less than 70 Ω.
- Is the ADG444BRZ latch-up proof? Yes, the ADG444BRZ is latch-up proof.
- What is the switching time for the ADG444BRZ? The switching time (tON) is less than 110 ns and (tOFF) is less than 60 ns.
