DG528CJ+

Analog Switches, Multiplexers, Demultiplexers Overview

The DG528CJ+ is an 8-channel, single-ended CMOS multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It features on-board address and control latches to simplify microprocessor-based designs. The device operates with dual supplies ranging from ±4.5V to ±20V or a single supply from +5V to +30V. Key electrical parameters include a maximum on-resistance of 450Ω, switching times of 1.5µs (Ton/Toff), and a charge injection of 4pC. It is housed in an 18-pin Plastic DIP package and functions within a temperature range of 0°C to +70°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• On-board address and control latches reduce board space and design complexity.
• Break-before-make switching prevents momentary shorting of input signals.
• TTL and CMOS logic compatible digital inputs ensure broad interface compatibility.

Analog Switches, Multiplexers, Demultiplexers Applications

• Data-acquisition systems
• Automatic test equipment
• Microprocessor-controlled systems

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific suffix 'CJ+' against the manufacturer's current datasheet to confirm the package type and operating temperature range. Ensure that the ordering information matches the required voltage specifications and pin configuration for the target application before finalizing procurement.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when an 8-channel latchable multiplexer is required for microprocessor interfaces. Verify that the analog signal range fits within the specified single or dual supply limits. Confirm that the 450Ω on-resistance meets the system's signal integrity requirements.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the DG528/DG529 series of monolithic CMOS multiplexers. The DG528 variant specifically provides single-ended 1-of-8 switching, whereas the DG529 offers differential 2-of-8 switching. Both share similar latchable architecture and pinout structures.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitutes include the ADG528 and industry-standard DG528 variants. These parts are pin and electrically compatible with the DG528CJ+. Verify that any replacement maintains the required latch functionality and voltage ratings.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the DG528CJ+ prevent signal shorting during switching?

It utilizes break-before-make input switches, which ensure that the previous channel disconnects before the new channel connects, preventing momentary shorts.

What is the function of the WR and RS pins?

The Write (WR) strobe latches the BCD address input, while the Reset (RS) strobe turns off all channels and clears the latches when driven low.

Can the DG528CJ+ operate with asymmetric power supplies?

Yes, it can operate with asymmetrical supplies such as +15V and -5V, provided the total voltage difference between V+ and V- remains within the specified limits.