The MAX5532–MAX5535 are dual, 12-bit, ultra-lowpower,
voltage-output, digital-to-analog converters
(DACs) offering rail-to-rail buffered voltage outputs. The
DACs operate from a 1.8V to 5.5V supply and consume
less than 5μA, making the devices suitable for lowpower
and low-voltage applications. A shutdown mode
reduces overall current, including the reference input
current, to just 0.18μA. The MAX5532–MAX5535 use a
3-wire serial interface that is compatible with SPI?,
QSPI?, and MICROWIRE?.
Upon power-up, the MAX5532–MAX5535 outputs are
driven to zero scale, providing additional safety for
applications that drive valves or for other transducers
that need to be off during power-up. The zero-scale
outputs enable glitch-free power-up.
The MAX5532 accepts an external reference input and
provides unity-gain outputs. The MAX5533 contains a
precision internal reference and provides a buffered
external reference output with unity-gain DAC outputs.
The MAX5534 accepts an external reference input and
provides force-sense outputs. The MAX5535 contains a
precision internal reference and provides a buffered
external reference output with force-sense DAC outputs.