AD57801It is a true 18-bit, unbuffered voltage output DAC that operates from bipolar supplies up to 33 V. The positive reference input range is 5 V to VDD – 2.5 V, and the negative reference input range is VSS + 2.5 V to 0 V. Both reference inputs are buffered on-chip, eliminating the need for external buffering. The AD5780 has a maximum relative accuracy of ±1 LSB, guaranteed monotonicity, and a differential nonlinearity (DNL) maximum of ±1 LSB.
THE DEVICE FEATURES A VERSATILE 3-WIRE SERIAL INTERFACE CAPABLE OF OPERATING AT CLOCK RATES UP TO 35 UMHz and is compatible with standard spi, qspi,™ microwire™, and dsp interfaces. It includes a power-on reset circuit that ensures that the DAC outputs to 0 V after power-up and maintains a known output impedance state until a valid write is performed on the device. The output clamp feature places the output in a defined load state.
1Protected by U.S. Patent Nos. 7,884,747 and 8,089,380.
Product features
- True 18-bit accuracy
- Wide supply voltage range: up to ±16.5 V
- Operating temperature range: -40°C to +125°C.
- Low noise: 8 nV/√Hz
- Low gain error temperature coefficient: ±0.018 ppm/°C.
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- Medical instruments
- Test and measurement
- Industrial control
- Scientific and aerospace instruments
- Data acquisition system
- Digital gain and offset voltage adjustment
- Power control