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

Industry's Smallest 8-Bit Dual DAC in SOT23

Product Details

Key Features

Applications/Uses

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 8
# Channels 2
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.275
Settling Time (µs) (typ) 50
Package/Pins SOT23/8
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
1.73
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Simplified Block Diagram

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 8
# Channels 2
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Ext.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 5.5
ICC (mA) (max) 0.275
Settling Time (µs) (typ) 50
Package/Pins SOT23/8
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
1.73

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

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

Description

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.

Simplified Block Diagram

MAX5223: Functional Block Diagram MAX5223: Functional Block Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .