At first glance, the 16bit versions of the LTC2662 and the LTC2672 appear to be identical. What are the differences? And I want to known more that what performance dose LTC2672 improve than LTC2662.
The noise spectral density of the ltc2662 is ~5 nA/rtHz @ 1MHz, while the '72 variant is ~3 nA/rtHz
The '72s datasheet says that it has a lower dropout and that it can be run from 2.1V instead of 2.85V, but both chips actually can drive a laser from 2.1V just fine.
The '72 has a problem with noise in the low MHz frequencies when being run far from the max DAC span.
The noise spectral density of the ltc2662 is ~5 nA/rtHz @ 1MHz, while the '72 variant is ~3 nA/rtHz
The '72s datasheet says that it has a lower dropout and that it can be run from 2.1V instead of 2.85V, but both chips actually can drive a laser from 2.1V just fine.
The '72 has a problem with noise in the low MHz frequencies when being run far from the max DAC span.
