DG508ACWE+

Overview

The DG508ACWE+ is a monolithic CMOS analog multiplexer manufactured by Analog Devices Inc./Maxim Integrated. It functions as a single 8-channel (1-of-8) switch with bidirectional signal routing capabilities. The device operates on dual power supplies ranging from ±4.5V to ±18V and supports an analog signal range of -15V to +15V. Electrical specifications at ±15V include a maximum drain-source on-resistance of 400 Ohms, a typical switching transition time of 0.6µs, and a break-before-make interval of 0.2µs. Logic inputs are compatible with both TTL and CMOS standards. The component is housed in a 16-pin Wide SO package and is rated for an operating temperature range of 0°C to +70°C.

Feature Summary

• Monolithic CMOS design ensuring latchup-proof construction even when power supplies are off while input signals remain present.
• Guaranteed break-before-make switching sequence prevents signal shorting during channel transitions.
• Bidirectional operation allows the analog switches to function effectively as either multiplexers or demultiplexers.
• Logic and enable inputs designed for direct compatibility with standard TTL and CMOS logic families.

Applications

• Data-acquisition systems requiring precise signal routing
• Control systems utilizing sequential data processing
• Aircraft heads-up displays demanding reliable signal integrity
• Data logging systems monitoring multiple sensor inputs

Procurement Notes

Verify that the specific part number suffix matches the required thermal performance and package dimensions. Confirm RoHS compliance status through official manufacturer documentation before integration. Ensure supply chain sources provide valid traceability records. Cross-reference the ordering information table to validate the correct temperature grade and pin configuration for the intended application environment.

Selection Notes

Select this component for applications requiring robust analog signal switching within a wide voltage range. The wide SO package facilitates surface-mount assembly. Consider the ±15V operational limits when designing power rails. Verify that the system logic levels align with the specified TTL/CMOS compatible inputs. Evaluate thermal dissipation requirements based on the derating curves provided in the datasheet for the specific ambient conditions.

Part Context

This device belongs to the DG508A/DG509A series of monolithic CMOS analog multiplexers. The DG508A variant specifically provides eight single-ended channels, whereas the DG509A offers four differential channels. Both share identical pinouts and core switching characteristics, differing primarily in internal channel configuration. This series serves as a plug-in upgrade for legacy industry-standard components, offering improved switching speeds and lower leakage currents.

Replacement Considerations

Direct substitutes include other DG508A variants such as DG508ADJ+ or DG508AEWE+, which offer different temperature ranges but maintain functional compatibility. Verify pinout alignment and package dimensions when considering alternative manufacturers' parts. Ensure any replacement maintains the required break-before-make timing and latchup protection features.