MAX5805BAUB+

The MAX5805BAUB+ is an ultra small, single channel, 12bit buffered output voltage DAC with internal reference and I2C interface in 10 pin µMAX package. An internal reference has a software selectable option of 2.048V, 2.5V or 4.096V. A precision external reference input allows rail to rail operation and presents a 100Kohm load to an external reference. It has an I2C compatible, 2-wire interface that operates at clock rates up to 450KHz. The DAC output is buffered and has a low supply current of 155µA (typical at 3.5V) and a low offset error of ±0.5mV. On power-up, the MAX5805 reset the DAC outputs to zero, providing additional safety for applications that drive valves or other transducers which need to be off on power-up. It includes a user configurable active-low asynchronous input for additional flexibility. This input can be programmed to asynchronously clear or temporarily gate DAC output to a user-programmable value. The active-low asynchronous LDAC input is also included.

• Supply voltage range is 2.7V to 5.5V
• Operating temperature range from -40°C to 125°C
• ±1LSB INL buffered voltage output
• Low power consumption of less than 1mW
• Three software selectable power-down output impedances of 1Kohm, 100Kohm or high impedance
• Settling time is 6.3μs
• Output directly drives 2Kohm loads
• Internal reference tempco is 10ppm/°C (typ), 25ppm/°C (max)

Aplicações

Signal Processing, Portable Devices

Notas

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party