The AD1866 is a complete dual 16-bit DAC offering excellent performance while requiring a single +5 V power supply. It is fabricated on Analog Devices’ ABCMOS wafer fabrication process. The monolithic chip includes CMOS logic elements, bipolar and MOS linear elements and laser trimmed, thin- film resistor elements. Careful design and layout techniques have resulted in low distortion, low noise, high channel separation and low power
The AD1866 is a dual 16‑bit audio DAC that operates from a single +5 V supply and offers low distortion, low power consumption, and high channel separation. It is available in 16‑pin DIP or SOIC packages and is suited for multimedia, portable, and automotive audio applications.
The document includes functional block diagrams, detailed specifications, grounding and power‑supply recommendations, pin configurations, and example application circuits with popular digital filter chips. It also provides performance graphs for THD+N, channel separation, and supply‑voltage rejection.
| Resolution | 16 Bits |
|---|---|
| THD+N (typical) | 0.005 % |
| Signal‑to‑Noise Ratio | 95 dB |
| Operating Temperature Range | -35 °C to +85 °C |
The maximum clock input frequency is 13.5 MHz.
The AD1866 has three power‑supply input pins: V S (pins 9 and 15) and V L (pin 1).
Grounding is provided by two pins: AGND (pin 12) for analog ground and DGND (pin 7) for digital ground.