DG508A/DG509A are monolithic CMOS analog multiplexers (muxes) produced by Maxim. DG508A is a single 8-channel (1-of-8) mux, and DG509A is a differential 4-channel (2-of-8) mux. Both devices guarantee break-before-make switching. Maxim guarantees that these muxes will not latch up if the power supplies are turned off with the input signals still present. Maxim also guarantees continuous operation when these devices are powered by supplies ranging from ±4.5V to ±18V. DG508A/DG509A are plug-in upgrades for the industry-standard DG08A/DG509A, respectively. Maxim's parts have lower on-resistance, faster enable switching times, and significantly lower leakage currents. DG508A/DG509A also consume significantly lower power, making them ideal for portable equipment. Applications include control systems, data logging systems, aircraft heads-up displays, data acquisition systems, and signal routing.
The DG508A and DG509A are monolithic CMOS analog multiplexers from Maxim. The DG508A is a single‑ended 8‑channel (1‑of‑8) device, while the DG509A is a differential 4‑channel (2‑of‑8) device. Both guarantee break‑before‑make switching, latch‑up‑proof operation, and low power consumption, making them suitable for portable equipment and a range of signal‑routing applications.
Typical applications include control systems, data‑logging, aircraft heads‑up displays, and data‑acquisition systems. Ordering information, pin configurations, and package drawings are provided, along with detailed electrical characteristics such as supply range, on‑resistance, leakage currents, and switching times.
| Supply voltage range | +4.5 V to +18 V |
|---|---|
| Leakage current (S‑off) | -0.5 nA |
| Multiplexer switching time (t_transition) | 0.6 µs (typical) |
| Operating temperature range | -40 °C to +125 °C (depending on package) |
They operate from +4.5 V up to +18 V.
Typical switching time is around 0.6 µs.