The AD390 contains four 12‑bit high‑speed voltage‑output digital‑to‑analog converters in a 28‑lead hybrid package. Each DAC is independently addressable, providing a versatile control architecture for systems that need multiple analog voltages while minimizing board space.
The device offers a built‑in 10 V reference, optional external reference, ±0.05 % full‑scale accuracy, 8 µs settling to ±½ LSB, and operates over a wide temperature range from –55 °C to +125 °C for certain grades. It is supplied in a side‑brazed ceramic DIP (DH‑28) package and requires only a single common reference for multiple devices.
| Resolution | 12 bits |
|---|---|
| Output Voltage Range | +10 V |
| Settling Time | 8 µs (to ±½ LSB) |
| Supply Voltage | 13.5 V to 15 V |
| Supply Current | 20 mA to 35 mA |
The AD390 includes four complete 12‑bit DACs in one IC package.
The settling time to ±½ LSB is 8 microseconds maximum.
Standard grades operate from 0 °C to +70 °C, while some grades are specified from –55 °C to +125 °C.
The AD390 outputs are calibrated for a +10 V output range, with a 0 to +10 V version available on special order.