ADG526ATQ

The ADG526ATQ from Analog Devices is a CMOS latched 16-channel analog multiplexer. It features 16 single-ended inputs multiplexed to a common output with on-chip address latches, allowing the channel selection address to be stored on the rising edge of a write-enable signal. The device offers break-before-make switching to prevent momentary shorting of channels, low on-resistance for minimal signal attenuation, and TTL/CMOS-compatible digital inputs. It is housed in a ceramic dual-in-line package (CDIP) that provides excellent thermal and mechanical robustness, making it suitable for industrial and high-reliability environments where extended temperature performance is required.

Typical applications include data acquisition systems, automatic test equipment, process control, and avionics where multiple analog signals must be routed under digital control. The latched architecture simplifies microprocessor interface by decoupling the channel selection from continuous address line activity, enabling stable multiplexing in systems with shared address buses. In procurement, the CDIP package and industrial temperature range position this part for use in systems requiring higher durability than commercial plastic packages, though it is not a full MIL-SPEC component unless specifically ordered with /883 screening. As with many through-hole ceramic-packaged multiplexers, long-term availability should be verified for new designs, as industry trends favor surface-mount formats; however, Analog Devices continues to support many mature process technologies for legacy and long-life applications.