Analog Devices MAX5223 Product Info

• 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

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 V_DD. 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.

Applications

• 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