NORWOOD, Mass. -- Analog Devices Inc. here is offering quad, 14- and 16-bit digital-to-analog converters (DACs) in pin-compatible SSOP-28 packages.
In these 28-pin packages, the AD5544 and AD5554 converters take up half the printed-circuit board space of the next smallest alternative device, said Analog Devices. The DACs also consume 1.25 milliwatts of power, resulting in less heat in less space, according to the Norwood company.
"We designed these new DACs for a variety of applications in instrumentation, process-control equipment, communications equipment, and digitally controlled calibration," said Walt Heinzer, data converter marketing manager at Analog Devices. "They are ideal for DC voltage set-point applications, such as those used in instruments and industrial control, and for AC multiplying gain-control applications, such as those found in servo loops."
The serial-input, current-output devices offer 16-bit resolution. They also support higher performance designs with 20 MHz serial-data write timing, and 2 MHz input bandwidths for the four separate, four-quadrant multiplying reference inputs, according to Analog Devices. Performance is further boosted by a 2-microsecond settling time.
When combined with a current-to-voltage amplifier and external reference, the AD5544 and AD5554 DACs offer a wide range of output voltages, said the commpany. In a unipolar application, the output spans 0 to 12 volts. In a bipolar design, it can be configured to provide up to +/- 15 volts of span. A single external reference is needed for either unipolar or bipolar voltage spans. These devices are specified over a temperature range of -40 to +85 degrees C.
Both the AD5544 and AD5554 are available now. The AD5544 16-bit quad DAC sells for $28 each in 1,000-piece quantities. The 14-bit AD5554 is priced at $18.03 each in the same quantity.