
Wolfson Microelectronics plc
DESCRIPTION
The WM2618 is a dual 12-bit voltage output, resistor string, digital-to-analogue converter. A power-on-reset function ensures repeatable start-up conditions.
The device has been designed to interface efficiently to industry standard microprocessors and DSPs, including the TMS320 family. The WM2618 is programmed with a 16-bit serial word. The WM2618 has a simple-to-use single 2.7V to 5.5V supply. The digital inputs feature Schmitt triggers for high noise immunity.
FEATURES
• Two 12-bit voltage output DACs
• Single supply from 2.7V to 5.5V supply operation
• DNL ±0.5 LSB, INL ±1.9
• Low power consumption
- 3mW typical in slow mode
- 8mW typical in fast mode
• TMS320, (Q)SP™, and Microwire compatible serial interface
• Programmable settling time 4µs or 12µs typical
APPLICATIONS
• Battery powered test instruments
• Digital offset and gain adjustment
• Battery operated/remote industrial controls
• Machine and motion control devices
• Cellular telephones
• Wireless telephone and communication systems
• Speech synthesis
• Arbitrary waveform generation