MAX5530ETC+

The MAX5530/MAX5531 are single, 12-bit, ultra-lowpower, voltage-output, digital-to-analog converters (DACs) offering Rail-to-Rail buffered voltage outputs. The DACs operate from a 1.8V to 5.5V supply and consume less than 6µA, making them desirable for lowpower and low-voltage applications. A shutdown mode reduces overall current, including the reference input current, to just 0.18µA. The MAX5530/MAX5531 use a 3-wire serial interface that is compatible with SPI, QSPI, and MICROWIRE. At power-up, the MAX5530/MAX5531 outputs are driven to zero scale, providing additional safety for applications that drive valves or for other transducers that must be off during power-up. The zero-scale outputs enable glitchfree power-up. The MAX5530 accepts an external reference input. The MAX5531 contains an internal reference and provides an external reference output. Both devices have forcesense-configured output buffers. The MAX5530/MAX5531 are available in a 4mm×4mm×0.8mm, 12-pin, thin QFN package and are guaranteed over the extended -40°C to +85°C temperature range.

Applications

• Portable Battery-Powered Devices
• Instrumentation
• Automatic Trimming and Calibration in Factory or Field
• Programmable Voltage and Current Sources
• Industrial Process Control and Remote Industrial Devices
• Remote Data Conversion and Monitoring
• Chemical Sensor Cell Bias for Gas Monitors
• Programmable Liquid Crystal Display (LCD) Bias

Key features

• Ultra-Low 6µA Supply Current
• Shutdown Mode Reduces Supply Current to 0.18µA (max)
• Single +1.8V to +5.5V Supply
• Small 4mm x 4mm x 0.8mm Thin QFN Package
• Flexible Force-Sense-Configured Rail-to-Rail Output Buffers
• Internal Reference Sources 8mA of Current (MAX5531)
• Fast 16MHz 3-Wire SPI-/QSPI-/MICROWIRECompatible Serial Interface
• TTL- and CMOS-Compatible Digital Inputs with Hysteresis
• Glitch-Free Outputs During Power-Up