ADI AD5791BRUZ

The AD5791 is a single 20-bit, unbuffered voltage-output digital-to-analog converter (DAC) that operates from a bipolar supply of up to 33 V. The AD5791 accepts a positive reference input in the range 5 V to VDD - 2.5 V and a negative reference input in the range VSS + 2.5 V to 0 V. The AD5791 offers a relative accuracy specification of ±1 LSB max, and operation is guaranteed monotonic with a ±1 LSB differential nonlinearity (DNL) maximum specification. The device uses a versatile 3-wire serial interface that operates at clock rates up to 35 MHz and that is compatible with standard serial peripheral interface (SPI), QSPI, MICROWIRE, and DSP interface standards. The device incorporates a power-on reset circuit that ensures the DAC output powers up to 0V and in a known output impedance state and remains in this state until a valid write to the device takes place. The device provides an output clamp feature that places the output in a defined load state.

• 1 ppm resolution
• 1 ppm INL
• 7.5 nV/√Hz noise spectral density
• 0.19 LSB long-term linearity stability
• < 0.05 ppm/°C temperature drift
• 1 µs settling time
• 1.4 nV-sec glitch impulse
• Operating temperature range: -40°C to +125°C
• 20-lead TSSOP package
• Wide power supply range up to ±16.5 V
• 35 MHz Schmitt triggered digital interface
• 1.8 V compatible digital interface

• Medical instrumentation
• Test and measurement
• Industrial control