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MAX5531：Ultra-Low-Power, 12-Bit, Voltage-Output DACs

The MAX5530/MAX5531 are single, 12-bit, ultra-low- power, 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 low-power 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 glitch- free power-up. The MAX5530 accepts an external reference input. The MAX5531 contains an internal reference and provides an external reference output. Both devices have force-sense-configured output buffers. The MAX5530/MAX5531 are available in a 4mm x 4mm x 0.8mm, 12-pin, thin QFN package and are guaranteed over the extended -40°C to +85°C temperature range. For 10-bit compatible devices, refer to the MAX5520/MAX5521 data sheet. For 8-bit compatible devices, refer to the MAX5510/MAX5511 data sheet.

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-/MICROWIRE-Compatible Serial Interface TTL- and CMOS-Compatible Digital Inputs with Hysteresis Glitch-Free Outputs During Power-Up EV Kit Available

MAX5530, MAX5531: Functional Block Diagram Applications/Uses Automatic Trimming and Calibration in Factory or Field Chemical Sensor Cell Bias for Gas Monitors Industrial Process Control and Remote Industrial Devices Instrumentation Portable Battery-Powered Devices Programmable Liquid Crystal Display (LCD) Bias Programmable Voltage and Current Sources Remote Data Conversion and Monitoring

DataSheet

Parametrics

Design kits & evaluation modules

• MAX5535EVKIT

Ordering Information