Quad/sink current DAC offers tracking control
Suited for servers, routers, switches, and video-processing cards, the DS4426 quad sink/source current D/A converter with tracking control is an I2 C-controlled 7-bit current DAC with four output channels explicitly designed for power-supply margining and adjustment functions. Three of the DAC channels have additional circuitry to provide power-supply sequencing or tracking.
Each output can sink or source currents from ±50 to ±200 µA with ±10% accuracy. The DS4426 uses an external resistor to program this full-scale value for each channel to maximize versatility. The I2 C bus is then used to set the current to any of the 127 sink or 127 source steps linearly up to the maximum full-scale value. (From $1.18 ea/10,000 — available now.)
Maxim Integrated Products Sunnyvale , CA
Customer Service 800-998-8800
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