Overview
The ADG412BR-REEL7, produced by Analog Devices Inc., is a monolithic CMOS device that comprises four independently selectable single-pole single-throw (SPST) switches. It is designed on an enhanced LC2MOS process, which offers low power dissipation, high switching speed, and low on-resistance. This device is particularly suited for applications requiring high signal integrity and minimal power consumption.
The ADG412 differs from the ADG411 in that its switches are turned on with a logic high on the appropriate control input, whereas the ADG411 switches are turned on with a logic low. Each switch in the ADG412 conducts equally well in both directions when on and has an input signal range that extends to the supplies. The device is ideal for use in multiplexer applications due to its break-before-make switching action and low charge injection, which minimizes transients when switching digital inputs.
Key Specifications
| Parameter | Typical Value | Maximum Value |
|---|---|---|
| On Resistance (RON) | - | 45 Ω (VS = ±10 V) |
| On Resistance Flatness | - | 3 Ω (VS = ±10 V) |
| Switching Time (tON) | 175 ns | 250 ns (RL = 300 Ω, CL = 35 pF, VS = 8 V) |
| Switching Time (tOFF) | 95 ns | 120 ns (RL = 300 Ω, CL = 35 pF, VS = 8 V) |
| Charge Injection | 5 pC | - |
| Off Isolation | - | 68 dB (RL = 50 Ω, CL = 5 pF, f = 1 MHz) |
| Channel-to-Channel Crosstalk | - | 85 dB (RL = 50 Ω, CL = 5 pF, f = 1 MHz) |
| Supply Voltage Range | - | ±15 V |
| Operating Temperature Range | - | −40°C to +85°C |
| Package Type | - | 16-Lead TSSOP |
Key Features
- Low Power Dissipation: Ultralow power consumption, making it ideal for battery-powered and portable instruments.
- High Switching Speed: Fast switching times with low on-resistance, suitable for audio and video signal switching.
- Extended Signal Range: Signal range extends fully to the supply rails, enhancing flexibility in various applications.
- Break-Before-Make Switching: Prevents channel shorting when configured as a multiplexer, ensuring reliable operation.
- Low Charge Injection: Minimizes transients when switching digital inputs, reducing signal distortion.
Applications
- Audio and Video Switching: Suitable for switching audio and video signals due to its low distortion and high signal bandwidth.
- Automatic Test Equipment: Used in test equipment for its precision and reliability.
- Precision Data Acquisition: Ideal for data acquisition systems requiring high signal integrity.
- Battery-Powered Systems: Suitable for battery-powered instruments due to its ultralow power dissipation.
- Sample-and-Hold Systems: Used in sample-and-hold applications for its fast switching and low on-resistance.
- Communication Systems: Used in various communication systems for its reliability and performance.
Q & A
- What is the ADG412BR-REEL7 used for?
The ADG412BR-REEL7 is used as a precision quad SPST switch in various applications such as audio and video switching, automatic test equipment, precision data acquisition, battery-powered systems, sample-and-hold systems, and communication systems.
- How do the ADG411 and ADG412 differ?
The ADG411 and ADG412 differ in their digital control logic; the ADG411 switches are turned on with a logic low, while the ADG412 switches are turned on with a logic high.
- What is the typical on-resistance of the ADG412?
The typical on-resistance (RON) of the ADG412 is around 45 Ω when the supply voltage is ±10 V.
- What is the switching time of the ADG412?
The typical switching time (tON) is 175 ns, and the maximum is 250 ns under specified conditions.
- What is the charge injection of the ADG412?
The charge injection is typically 5 pC.
- What is the operating temperature range of the ADG412?
The operating temperature range is −40°C to +85°C.
- What package types are available for the ADG412?
The ADG412 is available in 16-Lead TSSOP, 16-Lead SOIC, and 16-Lead PDIP packages.
- Why is the ADG412 suitable for battery-powered systems?
The ADG412 is suitable for battery-powered systems due to its ultralow power dissipation.
- What is the significance of break-before-make switching in the ADG412?
The break-before-make switching action prevents channel shorting when the switches are configured as a multiplexer, ensuring reliable operation.
- How does the ADG412 handle signal range?
The ADG412 has an extended signal range that extends fully to the supply rails, enhancing its flexibility in various applications.
