The AD8522 is a complete dual 12-bit, single-supply, serial input DAC. The device features serial input, single supply, low power, gain calibration and zero calibration, 12-bit resolution, 12-bit linearity, 1 ppm/°C temperature coefficient and 2.5V reference output.
The AD8522 provides two 12‑bit DAC channels in a 14‑pin DIP or SO‑14 package. It operates from a single +5 V supply, includes an on‑chip 2.5 V reference, and delivers buffered voltage outputs up to 4.095 V full‑scale with ±5 mA drive capability. The device features a three‑wire serial digital interface (SDI, CLK, CS) and load‑strobe pins for easy daisy‑chaining and software control.
Typical applications include digitally controlled calibration, process control, computer peripherals, portable instrumentation, and cellular base‑station voltage adjustment. The datasheet details electrical characteristics, absolute maximum ratings, pin descriptions, timing diagrams, and performance graphs for output swing, noise, and power‑supply rejection.
| Full‑Scale Output Voltage | 4.095 V |
|---|---|
| Reference Output Voltage | 2.5 V |
| Logic Input Low Voltage (VIL) | 0.8 V |
| Logic Input High Voltage (VIH) | 2.4 V |
| Operating Temperature Range | -40 °C to +85 °C |
| Package Types | 14‑pin DIP, 14‑lead SOIC |
The device provides a full‑scale output of 4.095 V, which corresponds to 1 mV per LSB.
Logic low is recognized at 0.8 V or lower, and logic high at 2.4 V or higher.
The AD8522 is offered in a 14‑pin DIP and a 14‑lead SOIC (SO‑14) surface‑mount package.