Wolfson Microelectronics plc WM2639
The WM2639 is a 12-bit voltage output, resistor string, digital-toanalogue converter. The device has been designed to interface efficiently to industry standard microprocessors and DSPs. The WM2639 features an internal programmable voltage reference simplifying overall system design.| Part No. | WM2639 |
|---|---|
| Datasheet | WM2639 Download |
| Manufacturer |  Wolfson Microelectronics plc |
| Description | 12-Bit Parallel Input Voltage Output DAC with Internal Reference |
| Buy | Stock & Price |
FEATURES
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● 12-bit voltage output DAC Single supply 2.7V to 5.5V operation DNL ± 0.3 LSBs, INL ± 1.2 LSBs Internal programmable voltage reference Settling time 1µ s typical 12-bit microprocessor compatible interface Power down mode 10nA
DESCRIPTION
A hardware controlled power down mode is provided that reduces current consumption to 10nA. The reference voltage can also be supplied externally. Excellent performance is delivered with a typical DNL of 0.3 LSBs and typical INL of 1.2 LSBs. The output stage is buffered by a x2 gain near rail-to-rail amplifier, which features a Class A output stage (slow mode, Class AB). The 12 data bits are double buffered enabling the output to be asynchronously updated under hardware control. The settling time of the DAC is software programmable to allow the designer to optimise speed versus power dissipation. The device is available in a 20-pin TSSOP package. Commercial temperature (0° to 70°C) and Industrial temperature (-40° to 85°C) variants are supported.
