The AD5791 is a single 20-bit, unbuffered voltage-output 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 – 2.5V 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 DNL max specification.
The part uses a versatile 3-wire serial interface that operates at clock rates up to 35 MHz and that is compatible with standard SPI, QSPI™, MICROWIRE™, and DSP interface standards. The part incorporates a power-on reset circuit that ensures the DAC output powers up to 0 V and in a known output impedance state and remains in this state until a valid write to the device takes place. The part provides an output clamp feature that places the output in a defined load state.
- 1-ppm Resolution
- 1-ppm INL
- 0.19 LSB long term linearity stability
- <0.05 ppm/°C temperature drift
- 1µs 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
