AD7801BRUZ-REEL7

The AD7801BRUZ-REEL7 is a single 8-bit voltage output DAC from Analog Devices. It operates from a single 2.7V to 5.5V supply and includes an on-chip precision output buffer that allows rail-to-rail output swing. The device accepts parallel data and features double-buffered interface logic with input and DAC registers. Reference selection can be either an internal reference derived from VDD or an external reference applied at the REFIN pin, providing flexibility for different system requirements.

Key electrical specifications include a typical settling time of 1.2 µs, integral nonlinearity (INL) of ±1 LSB maximum, and differential nonlinearity (DNL) of ±1 LSB maximum. The DAC consumes 1.75 mA maximum supply current at 3.3V, and reduces to 1 µA maximum in power-down mode. The device is specified for operation over the -40°C to +105°C temperature range.

The AD7801BRUZ-REEL7 is housed in a 20-lead TSSOP package (0.173" width, 4.40mm) with a 0.65 mm lead pitch and gull wing terminals for surface mount assembly. The architecture is based on a current source design and does not provide differential output. The device includes a power-on reset function that clears the output to zero scale on power-up, and an asynchronous CLR input for clearing the DAC output.