I²C-controlled 7-bit current DAC

Maxim announces the release of DS4432 DAC targeted for low-cost, dual-channel, sink/source current.

This I²C-controlled, 7-bit current DAC features two output channels that are explicitly designed for power-supply margin testing and adjustment. The DS4432 offers lower full-scale current and higher resolution than sink/source current DACs, thus expanding the range of existing DC-DC power supplies that can be margined and adjusted with minimal redesign.

The DS4432 applications include servers, routers, switches, video processing cards, and other DC-DC power-supply applications requiring system-level voltage control, calibration, and margin testing.

The DS4432 powers up in a neutral (zero-current) output condition to minimize system-startup overhead requirements and to maximize simplicity and versatility, the full-scale output currents are set between 50µA and 200µA using one external resistor for each channel. Through the I²C bus, the output currents can then be set to any of the 127 linear sink or 127 linear source steps up to the maximum full-scale value.

Package: 8-pin µSOP

Operating temperature range: -40°C to +85°C

Price: Each $0.45 for 10k pieces.

For more information visit: www.maxim-ic.com