Maxim has released four new low-power 16/12-bit, buffered voltage-output, high-linearity DACs in the form of the dual channel MAX5136 and MAX5137 and quad channel MAX5134 and MAX5135.
The ICs use a precision internal reference or a precision external reference for rail-to-rail operation. All devices accept a wide +2,7 V to +5,25 V supply voltage range to accommodate most low-power and low-voltage applications. They accept a 3-wire SPI/QSPI/MICROWIRE/DSP compatible serial interface to save board space and reduce the complexity of optically isolated and transformer-isolated applications.
The digital interface’s double-buffered hardware and software active-low LDAC provides simultaneous output updates. The serial interface features an active-low READY output for easy daisy-chaining of several MAX5134–MAX5137 devices and/or other compatible devices.
The ICs include a hardware input to reset the DAC outputs to zero or midscale upon power-up or reset, providing additional safety for applications that drive valves or other transducers that need to be off during power-up. The high linearity of the DACs makes them ideal for precision control and instrumentation applications.
The devices are available in a 4 x 4 mm, 24-pin TQFN package and are specified over the -40°C to +105°C industrial temperature range.
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