Low-Power, Single, 16-/12-Bit, Buffered Voltage-Output DACs

The MAX5138 MAX5139 are a family of single-channel pin-compatible and software-compatible 16-bit and 12- bit DACs The MAX5138 MAX5139 are low-power, 16- bit/12-bit, buffered voltage-output, high-linearity DACs They use a precision internal reference or a precision external reference for Rail-to-Rail operation. The MAX5138 MAX5139 accept a wide +2.7V to +5.25V sup- ply-voltage range to accommodate most low-power and low-voltage applications. These devices accept a 3-wire SPITM-/QSPITM-/MICROWIRETM-/DSP-compatible serial Interface to save board space and reduce the complexi- ty of optically isolated and transformer-isolated applica- tions. The digital Interfaces double-buffered hardware and software LDAC provide simultaneous output update. The serial Interface features a READY output for easy daisy-chaining of several MAX5138 MAX5139 devices and/or other compatible devices. The MAX5138 MAX5139 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 these devices ideal for precision control and instrumentation applications. The MAX5138 MAX5139 are available in an ultra-small (3mm x 3mm), 16-pin TQFN package and are specified over the -40C to +105C extended industrial tempera- ture range. By Maxim Integrated Products