AD5378 is a 32-channel, 14-bit, parallel and serial input, bipolar voltage output DAC. It has an output voltage range of 3.5 V × VREF(+) and a maximum output voltage range of 17.5 V. AD5378 also has a system calibration function that allows users to program offset and gain.
The AD5378 from Analog Devices provides 32 independent 14‑bit DAC channels in a 108‑lead CSPBGA package. It offers bipolar output ranges up to ±8.75 V (17.5 V span) and supports both a double‑buffered 14‑bit parallel interface and a 3‑wire serial interface compatible with SPI, QSPI, Microwire and DSP standards, running up to 50 MHz.
The datasheet includes full electrical specifications, timing diagrams, absolute maximum ratings, and typical application circuits such as automatic test equipment (ATE) and optical attenuators. Ordering information and package dimensions are also provided.
| Resolution | 14 Bits |
|---|---|
| Relative Accuracy | +3 LSB max (‑40 °C to +85 °C) |
| Full‑Scale Error | +12 mV max (‑40 °C to +85 °C) |
| Output Voltage Span | 17.5 V (‑8.75 V to +8.75 V) |
| Power Dissipation (Unloaded) | 850 mW max |
| Load Current | 15 mA max |
| Short‑Circuit Current | 15 mA max |
The AD5378 provides a bipolar output range of –8.75 V to +8.75 V, giving a total span of 17.5 V.
The device contains 32 independent 14‑bit DAC channels.
It supports a double‑buffered 14‑bit parallel interface and a 3‑wire serial interface compatible with SPI, QSPI, Microwire and DSP standards.
The serial interface can operate at clock speeds up to 50 MHz.