Features: • Eight 10-bit DACs in one package
• Dual supply 2.7V to 5.5V operation
• DNL ±0.1 LSBs, INL ±0.5 LSBs typical
• Programmable settling time / power(1.0s typical in fast mode)
• Microcontroller compatible serial interface
• Power down mode ( < 0.1A)
• Monotonic over temperature
• Data output for daisy chainingApplication• Battery powered test instruments
• Digital offset and gain adjustment
• Battery operated / remote industrial controls
• Programmable loop controllers
• CNC machine tools
• Machine and motion control devices
• Wireless telephone and communication systems
• RoboticsSpecifications
| CONDITION |
MIN |
MAX |
| Supply voltages, DVDD to DGND, AVDD to AGND |
|
7V |
| Supply voltage differences, AVDD to DVDD |
-2.8V |
2.8V |
| Digital input voltage |
-0.3V |
DVDD + 0.3V |
| Reference input voltage |
-0.3V |
AVDD + 0.3V |
| Operating temperature range, TA |
WM2614CDT
WM2614IDT |
0°C
-40°C |
70°C
85°C |
| Storage temperature |
-65°C |
150°C |
| Lead temperature 1.6mm (1/16 inch) soldering for 10 seconds |
|
260°C |
DescriptionThe WM2608 is an octal, 10-bit, resistor string digital-toanalogueconverter. The eight individual DACs contained in theIC can be switched in pairs between fast and slow (low power)operation modes, or powered down, under software control.Alternatively, the whole device can be powered down, reducingcurrent consumption to less than 0.1A.
The DAC outputs are buffered by a rail-to-rail amplifier with again of two, which is configurable as Class A (fast mode) orClass AB (for low-power mode).
The WM2608 has been designed to interface directly to industrystandard microprocessors and DSPs, and can operate on twoseparate analogue and digital power supplies. It is programmedwith a 16-bit serial word comprising 4 address bits and up to 12DAC or control register data bits. All eight DACs can besimultaneously forced to a preset value using a preset input pin.A daisy-chain data output makes it possible to control several ofWolfson's octal DACs from the same interface, withoutincreasing the number of control lines.
The WM2608 is available in a 20-pin TSSOP package.Commercial temperature (0° to 70°C) and Industrialtemperature (-40° to 85°C) variants are supported.
WM2608 Data Sheet
