ADG412BR

Analog Switches, Multiplexers, Demultiplexers Overview

The ADG412BR is a precision quad SPST analog switch from Analog Devices, fabricated on an enhanced LC2MOS process. It features four independently selectable switches with TTL/CMOS-compatible logic where a high input turns the switch on. Key electrical parameters include a maximum on-resistance of 35 Ω, supply voltage ratings up to 44 V (±15 V signal range), and fast switching times with tON < 175 ns and tOFF < 145 ns. The device offers ultralow power dissipation of 35 μW, low charge injection of 5 pC, and operates within a temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Enhanced LC2MOS technology provides flat on-resistance profile for excellent linearity and low distortion.
• Extended signal range allows analog signals to extend fully to the supply rails.
• Break-before-make switching action prevents channel shorting in multiplexer configurations.
• Ultralow power dissipation makes the device suitable for battery-powered instruments.

Analog Switches, Multiplexers, Demultiplexers Applications

• Audio and video signal switching
• Automatic test equipment
• Precision data acquisition systems
• Sample-and-hold circuits

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific package variant, as the ADG412BR designation typically refers to the SOIC-16 package. Confirm RoHS compliance status if required, noting that suffixes like 'Z' indicate compliant parts. Ensure the logic polarity matches the application, as the ADG412 requires a logic high to activate, unlike the inverted logic of the ADG411.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select the ADG412BR when a non-inverted digital control logic is required for the SPST switches. It serves as a direct plug-in replacement for legacy DG412 devices. Consider the extended temperature range option if operation below -40°C is necessary. Verify that the single-supply or dual-supply configuration meets the system's voltage requirements.

Analog Switches, Multiplexers, Demultiplexers Part Context

The ADG412BR belongs to the ADG411/ADG412/ADG413 family of precision quad SPST switches. While functionally similar regarding analog performance, the ADG412 is distinguished by its non-inverted digital control logic, requiring a high signal to close the switch. This contrasts with the ADG411, which uses inverted logic.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The datasheet explicitly identifies the ADG412 as a plug-in replacement for the Maxim Integrated DG412. When substituting, verify that the pinout and logic levels are compatible. Other members of the ADG41x family may require logic inversion adjustments if used as replacements.