Analog Devices is one of the largest manufacturers of integrated circuits in the world. One of their innumerable offerings is AD5623RBCPZ-5REEL7, a digital to analog converter. The top mark for this device is listed as “D86”, but occasionally you’ll receive products marked DG8. Are these products defective or incorrect?
ADI has confirmed that both sets of product markings are correct for this device. You can use your chips with either markings certain of their provenance, provided they came from an authorized distributor like DigiKey.