Maxim Integrated Products introduces the DS4412 low-cost, dual-channel, sink/source current DAC. This I2C-controlled, 4-bit current DAC features two output channels that are explicitly designed for power-supply margin testing and adjustment.

Each output channel provides control of a DC-DC power supply by sinking or sourcing current directly into the power supply's feedback node. This DC-DC power-supply control allows existing power-supply designs to be margined and adjusted with minimal redesign, thus making the DS4412 ideal for servers, video-processing cards, and other DC-DC power-supply applications.

The DS4412 powers up in a neutral (or zero-current) output condition to minimize system-startup overhead requirements. To maximize simplicity and versatility, the full-scale output currents are set between 500 microamps and 2mA using one external resistor for each channel. Through the I2C bus, the output currents can then be set to any of the 15 linear sink or 15 linear source steps up to the maximum full-scale value.

The DS4412 is fully specified over the -40 degrees Celsius to +85 degrees Celsius industrial temperature range, and is available in a tiny 8-pin microSOP. Pricing begins at $0.45 (10,000-up, FOB USA).

Maxim Integrated Products, a two billion dollar company, designs and manufactures ICs for analog and mixed-signal applications.  The company's broad portfolio of 27 product categories is among the industry's deepest, with over 5400 products.

Contact details

For further information, contact Maxim Integrated Products Customer Service on 1 800 998 8800.