The MAX5109 dual 8-bit digital-to-analog converters
(DACs) feature nonvolatile registers. These nonvolatile
registers store the DAC operating modes and output
states, allowing the DACs to initialize to specified configurations
at power-up.
Precision on-chip output buffers swing rail-to-rail, and
provide 8µs settling time. The I²C-compatible, 2-wire
serial interface allows for a maximum clock frequency
of 400kHz.
The MAX5109 has independent high and low reference
inputs allowing maximum output voltage range flexibility.
The reference rails accept voltage inputs that range
from ground to the positive supply rail.
This device operates from a single +2.7V to +5.25V supply
and consumes 200µA per DAC. A software-controlled
power-down mode decreases supply current to
less than 25µA. A software-controlled mute mode sets
each DAC, or both DACs simultaneously, to their respective
REFL_ voltages. The MAX5109 also includes an
asynchronous MUTE-bar input, that drives both DAC outputs
simultaneously to their respective REFL_ voltages.
The MAX5109 is available in a 16-pin QSOP and is
specified for operation over the extended (-40°C to
+85°C) temperature range.
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