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MAX5521：+1.8V to +5.5V, Ultra-Low-Power, 10-Bit, Voltage-Output DACs

The MAX5520/MAX5521 are single, 10-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 MAX5520/MAX5521 use a 3-wire serial interface that is compatible with SPI™, QSPI™, and MICROWIRE™. At power-up, the MAX5520/MAX5521 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 MAX5520 accepts an external reference input. The MAX5521 contains an internal reference and provides an external reference output. Both devices have force-sense-configured output buffers. The MAX5520/MAX5521 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 12-bit compatible devices, refer to the MAX5530/MAX5531 data sheet. For 8-bit compatible devices, refer to the MAX5510/MAX5511 data sheet.

Key Features Single +1.8V to +5.5V Supply Ultra-Low 6µA Supply Current Shutdown Mode Reduces Supply Current to 0.18µA (max) 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 (MAX5521) 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

MAX5520, MAX5521: Functional Block Diagram Applications/Uses Automatic Trimming and Calibration in Factory or Field Automatic Trimming and Calibration in Factory or Field Chemical Sensor Cell Bias for Gas Monitors Industrial Devices 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

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• MAX5515：Dual, Ultra-Low-Power, 8-Bit, Voltage-Output DACs

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