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MAX5223：Low-Power, Dual, 8-Bit, Voltage-Output Serial DAC in 8-Pin SOT23

Industry's Smallest 8-Bit Dual DAC in SOT23

The MAX5223 contains two 8-bit, buffered, voltage output digital-to-analog converters (DAC A and DAC B) in a small 8-pin SOT23 package. DAC outputs can source and sink 1mA to within 100mV of ground and VDD. The MAX5223 operates with a single +2.7V to +5.5V supply. The device uses a 3-wire serial interface, which operates at clock rates up to 25MHz and is compatible with SPI™, QSPI™, and MICROWIRE™ interface standards. The serial input shift register is 16 bits long and consists of 8 bits of DAC input data and 8 bits for DAC selection and shutdown control. DAC registers can be loaded independently or in parallel at the positive edge of active-low CS. The MAX5223's ultra-low power consumption and tiny 8-pin SOT23 package make it ideal for portable and battery-powered applications. Supply current is a low 100µA and drops below 1µA in shutdown mode. In addition, the reference input is disconnected from the REF pin during shutdown, which reduces the system's total power consumption.

Key Features Tiny 8-Pin SOT23 Package (3mm x 3mm) Low Power Consumption 100µA Operating Current < 1µA Shutdown Current +2.7V to +5.5V Single-Supply Operation Dual Buffered Voltage Output Programmable Shutdown Mode 25MHz, 3-Wire Serial Interface SPI, QSPI, and MICROWIRE-Compatible

MAX5223: Functional Block Diagram Applications/Uses Cable Modems Cell Phones Cordless Phones Digital Still Cameras Faxes Handy Terminals Modems Notebook Computers Pagers Palmtop Computers PDAs and Organizers Pen Entry Palmtops Portable Patient Monitoring/Drug Delivery Portable Test Meters Printers

DataSheet

Parametrics

Quality and Environmental Data

• MAX5223.pdf

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• MAX5222：Dual, 8-Bit, Voltage-Output, Serial DAC in 8-Pin SOT23

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