Features: • Dual 8-bit voltage output DAC
• Single supply from 2.7V to 5.5V
• Low supply current
- 0.8mA typical in slow mode
- 1.8mA typical in fast mode
• DNL ±0.2 LSB, INL ±0.5 LSB (max)
• Monotonic over temperature
• DSP compatible serial interface
• Programmable settling time of 1s or 3s typical
• High impedance reference input buffer
Application• Digital servo control loops
• Industrial process control
• Battery powered instruments and controls
• Machine and motion control devices
• Digital offset and gain adjustment
Pinout
Specifications
| CONDITION |
MIN |
MAX |
| Digital supply voltages, AVDD or DVDD to GND |
|
7V |
| Reference input voltage |
-0.3V |
AVDD + 0.3V |
| Digital input voltage range to GND |
-0.3V |
DVDD + 0.3V |
| Operating temperature range, TA |
WM2625CD
WM2625ID |
0°C
-40°C |
70°C
85°C |
| Storage temperature |
-65°C |
150°C |
Soldering lead temperature, 1.6mm (1/16 inch) from package body for
10 seconds |
|
260°C |
DescriptionThe WM2625 is a dual 8-bit voltage output, resistor string digital-to-analogue converter. It can operate with supply voltages between 2.7V and 5.5V and can be powered down under software control. Power down reduces current consumption to 1A.
The WM2625 has been designed for glueless interface to industry standard microprocessors and DSPs. The WM2625 is programmed with a 16-bit serial word including 4 control bits and 8 data bits.
Excellent performance of the WM2625 is delivered with a typical DNL of 0.2LSBs. Monotonicity is guaranteed over the operating temperature range. The settling time of the DAC is programmable to allow for optimisation of speed versus power dissipation. The analogue output is buffered by a rail-to-rail amplifier with a gain of two and a Class AB output stage.
The reference voltage input features a high impedance buffer which eliminates the need to keep the reference source impedance low.
The WM2625 is available in an 8-pin SOIC package. Commercial (0° to 70°C) and Industrial (-40° to 85°C) temperature range variants are available.
WM2625 Data Sheet
