DG412DJZ

Overview

The DG412DJZ is a monolithic CMOS analog switch manufactured by Renesas Electronics Corporation. It integrates four independent single-pole single-throw (SPST) switches within a single package, featuring TTL and CMOS compatible digital inputs. The device utilizes a high-voltage silicon-gate process with an epitaxial layer to prevent latch-up. It supports single-ended supply voltages from +5V to +44V or split supplies from ±5V to ±20V. Key electrical parameters include a maximum on-resistance of 35 Ohms, a maximum turn-on time of 175 ns, and a maximum turn-off time of 145 ns. The unit operates within a temperature range of -40°C to +85°C and is housed in a 16-pin SOIC-Narrow package.

Feature Summary

• Four independent SPST analog switches integrated into a single monolithic CMOS structure
• Compatible with both TTL and CMOS logic input standards for flexible interfacing
• High voltage operation capability allowing control of signals up to 40V peak-to-peak
• Reduced charge injection characteristics suitable for precision sample and hold applications

Applications

• Sample and hold circuits requiring low charge injection
• Data acquisition systems utilizing single or dual power supplies
• Process control loops involving signal routing
• Instrumentation equipment requiring bilateral AC signal switching

Procurement Notes

Verify the specific manufacturer designation as the DG412 series has been produced by multiple entities including Intersil and Vishay. Confirm that the component matches the Renesas Electronics specification sheet regarding pinout and electrical tolerances. Ensure the package type corresponds to the required PCB footprint before ordering.

Selection Notes

Select this component when a quad SPST configuration is required with high voltage tolerance. Compare the 35 Ohm on-resistance against application requirements for signal integrity. Consider the 175 ns switching speed relative to system timing constraints. Verify compatibility with available single or split power supply rails.

Part Context

The DG412 belongs to the DG411/DG412/DG413 family of monolithic CMOS analog switches. These devices serve as drop-in replacements for older DG211 and DG212 series components. The DG412 specifically uses positive logic for switch selection, distinguishing it from the DG411 which uses negative logic. This family leverages high-voltage silicon-gate technology for improved performance over previous generations.

Replacement Considerations

DG411DVZ-T: Monolithic Quad SPST CMOS Analog Switch in TSSOP-16 Package.