The MAX5122/MAX5123 low-power, 12-bit, voltage-output, digital-to-analog converters (DACs) feature an internal precision bandgap reference and output amplifier. The MAX5122 operates on a single +5V supply with an internal +2.5V reference, and offers a configurable output amplifier. If necessary, the user can override the on-chip, The serial interface is compatible with SPI, QSPI, and MICROWIRE, which makes the MAX5122/MAX5123 suitable for cascading multiple devices. Each DAC has a double-buffered input organized as an input register followed by a DAC register. A 16-bit shift register loads data into the input register. The DAC register may be updated independently or simultaneously with the input register. Both devices are available in a 16-pin QSOP package and are specified for the extended-industrial (-40°C to +85°C) operating temperature range. For pin-compatible 14-bit upgrades, see the MAX5171/MAX5173 data sheet; for the pin-compatible 13-bit version, see the MAX5132/MAX5133 data sheet.
Built-In 10ppm/°C max Precision Bandgap Reference
SPI/QSPI/Microwire-Compatible, 3-Wire Serial Interface
Pin-Programmable Shutdown Mode and Power-Up Reset (0 or Midscale Output Voltage)
Buffered Output Capable of Driving 5kΩ ||100pF or 4-20mA Loads
Space-Saving 16-Pin QSOP Package
Pin-Compatible 13-Bit Upgrades Available (MAX5132/MAX5133)
Pin-Compatible 14-Bit Upgrades Available (MAX5171/MAX5173)