General Description

The MAX5120/MAX5121 are low-power, 12-bit, voltage output digital-to-analog converters (DACs) with an internal precision bandgap reference and an output amplifier. The MAX5120 operates on a +5V supply with an internal amplifier reference of +2.5V and is capable of a +4.095V full-scale output range. The MAX5121, operating on +3V, delivers its +2.0475V full-scale output with an internal precision reference of +1.25V. If necessary, the user can override the internal,

特性 Features

? Single-Supply Operation +5V (MAX5120) +3V (MAX5121)

? Full-Scale Output Range +4.095V (MAX5120) +2.0475V (MAX5121)

? Built-In 10ppm/°C (max) Precision Bandgap Reference +2.5V (MAX5120) +1.25V (MAX5121)

? Adjustable Output Offset

? SPI/QSPI/MICROWIRE-Compatible, 3-Wire Serial Interface

? Pin-Programmable Shutdown Mode and PowerUp Reset (0V or Midscale Output Voltage)

? Buffered Output Capable of Driving 5k? ??100pF or 4–20mA Loads

? Space-Saving 16-Pin QSOP Package

? Pin-Compatible 13-Bit Upgrades Available (MAX5130/MAX5131)

? Pin-Compatible 14-Bit Upgrades Available (MAX5170/MAX5172)

Applications

??? Industrial Process Controls

??? Automatic Test Equipment (ATE)

??? Digital Offset and Gain Adjustment

??? Motion Control

??? μP-Controlled Systems