This document introduces a 32-channel 12-bit voltage output DAC chip AD5383, which operates with a single supply voltage in the range of 3V to 5V. It features guaranteed monotonic INL error, on-chip reference voltage, wide temperature range, rail-to-rail output amplifier, etc. It supports parallel and serial interfaces, with features including channel monitor, simultaneous output update, clear function, amplifier boost mode, programmable offset and gain adjustment, square wave generation, and more. It is suitable for applications such as variable optical attenuators, level setting, optical micro-electro-mechanical systems, control systems, instrumentation, etc.
The AD5383 is a high-performance digital-to-analog converter (DAC) designed for applications requiring multiple channels in a compact package. It features 32 independent channels, each equipped with an on-chip output amplifier capable of rail-to-rail operation. The device includes a programmable internal reference available at 1.25 V or 2.5 V and supports various interface options including parallel, SPI/QSPI/MICROWIRE/DSP compatible serial interfaces, and I²C.
| Output Channels | 32 |
|---|---|
| Linearity Error (INL) | +1 LSB max |
| Differential Nonlinearity (DNL) | +1 LSB max |
| Zero-Scale Error | +4 mV max |
| Gain Temperature Coefficient | 2 ppm FSR/C typ |
| Short-Circuit Current | 40 mA max |
The device operates from -40°C to +85°C.
Yes, it includes a programmable internal 1.25 V/2.5 V reference.