DESCRIPTION
The WM2638 is a dual 12-bit voltage output, resistor string, digitalto-analogue converter. A software controlled power down mode is provided that reduces current consumption to 10nA.

FEATURES
• Two 12-bit voltage output DACs
• Single 2.7V to 5.5V supply operation
• DNL ±0.4 LSBs, INL ±2 LSBs
• Low power consumption
    • 12mW typical in fast mode
    • 6mW typical in slow mode
• TMS320, (Q)SPI™, and Microwire™ compatible serial interface
• Programmable settling time 1ms or 3.5ms typical
• Power down mode 10nA

APPLICATIONS
• Battery powered test instruments
• Digital offset and gain adjustment
• Battery operated/remote industrial controls
• Machine and motion control devices
• Cellular telephones
• Wireless telephones and communication systems
• Speech synthesis
• Arbitrary waveform generation