ISL5757

The ISL5757 is a 10-bit, current out, CMOS, digital to analog converter. The maximum update rate is at least 60+MSPS and can be powered by a single power supply in the recommended range of +3.0V to +3.6V. It consumes less than 120mW of power when using a +3.3V supply, the maximum 20mA of output current, and the data switching at 210MSPS. The architecture is based on a segmented current source arrangement that reduces glitch by reducing the amount of current switching at any one time. In previous architectures that contained all binary weighted current sources or a binary weighted resistor ladder, the converter might have a substantially larger amount of current turning on and off at certain, worst-case transition points such as midscale and quarter scale transitions. By greatly reducing the amount of current switching at these major transitions, the overall glitch of the converter is dramatically reduced, improving settling time, transient problems, and accuracy.