The document introduces the features of the AD5780 18-bit ±1 LSB INL voltage output DAC. It features a true 18-bit voltage output DAC, 8 nV/√Hz output noise spectral density, 0.025 LSB long-term linearity error stability, ±0.018 ppm/°C gain error temperature coefficient, and more. Additionally, it has a 2.5 μs output voltage settling time, 3.5 nV-sec midscale glitch impulse, integrated precision reference buffers, and other characteristics. The product is suitable for medical instrumentation, test and measurement, industrial control, scientific and aerospace instrumentation, data acquisition systems, digital gain and offset adjustment, power supply control, and other applications.
The AD5780 from Analog Devices is an 18‑bit unbuffered voltage output DAC designed for high‑precision applications such as medical instrumentation, test and measurement, and industrial control. It operates from a bipolar supply up to ±33 V and includes integrated reference buffers, a power‑on reset circuit, and an output clamp feature.
The device uses a versatile 3‑wire serial interface compatible with SPI, QSPI, Microwire and DSP standards, supporting clock rates up to 35 MHz. It is offered in a 24‑lead LFCSP package (4 mm × 5 mm) and is supported by an evaluation board and software for easy development.
| Resolution | 18 Bits |
|---|---|
| Integral Nonlinearity (INL) | ±1 LSB |
| Operating Temperature Range | ‑40°C to +125°C |
| Power Supply Range | Up to +16.5 V |
| Package | 24‑lead LFCSP (4 mm × 5 mm) |
| Maximum Serial Clock Frequency | 35 MHz |
| Output Noise Spectral Density | 8 nV/V·Hz at 1 kHz |
The AD5780 provides an 18‑bit resolution.
It operates from ‑40 °C to +125 °C.
The serial interface can run at up to 35 MHz.
The device is supplied in a 24‑lead LFCSP package measuring 4 mm × 5 mm.