difference between LTC2672 and LTC2662

Question

Hello, 
 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. 
 Thank you very much.

dendalisay · Accepted Answer

Hi dapan0518 , 
 They are indeed very similar parts, here's some differences: 
 1.) The LTC2672 has a lower dropout voltage (0.6V at 200mA) compared to the LTC2662 (1V at 200mA) 
 2.) The LTC2672 operates with output supply voltages (VDDx) from 2.1V to VCC, giving it flexibility​ while LTC2662, requires VDD0-4 to be between 2.85V and V+, where V+ can be as high as 33V​ 
 3.) Interms of tempcos LTC2672 has an internal reference with a 2.4 ppm/&deg;C (WLCSP) or 10 ppm/&deg;C (LFCSP) temperature coefficient. while LTC2662 has an internal reference with a 10 ppm/&deg;C maximum temperature coefficient. 
 4.) While for package details and digital interface, LTC2672 offers LFCSP and WLCSP packages, with a digital supply voltage from 1.71V to VCC while LTC2662 offers QFN package, with a digital interface operating from 1.8V to 5V. 
 While the LTC2672 and LTC2662 are quite similr in many aspects, the LTC2672 offers a lower dropout voltage, broader flexibility in output supply voltage, and improved internal reference stability in certain package options. These differences may make the LTC2672 a better fit for applications that benefit from lower power requirements and enhanced temperature performance, while the LTC2662 could be preferred in cases where a higher supply voltage or a different digital interface is needed. 
 Br, 
 Den)

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difference between LTC2672 and LTC2662

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