Analog Devices AD346SD

AD346SD

​883B

​AC 8752A/USA

​45 (written in marker)

​Based on these markings, here is an analysis of the component:

​Manufacturer: The "AD" prefix strongly suggests the manufacturer is Analog Devices. Analog Devices is a major American multinational semiconductor company known for its data conversion and signal processing technologies.

​Part Number: The primary part number is AD346SD. This indicates it is an instrumentation amplifier.

​Instrumentation amplifiers are a type of differential amplifier that has been optimized for precise, low-noise amplification of weak signals from sensors like load cells or strain gauges.

​The "SD" suffix likely indicates a specific package type or a military/high-reliability grade.

​Military/Aerospace Designation: The "883B" marking is a key indicator. It refers to MIL-STD-883, a United States military standard that defines test methods for microcircuits suitable for use in military and aerospace electronic systems. The "B" indicates the specific level of testing performed. This tells us the chip was designed and tested for use in harsh environments where high reliability is critical.

​Date Code & Location: The "AC 8752A/USA" marking can be broken down:

​"8752A" is likely a date code, indicating the component was manufactured in the 52nd week of 1987.

​"USA" confirms the chip was manufactured in the United States.

​Package: The component is in a ceramic CERDIP (Ceramic Dual In-line Package) or a similar hermetic package, which is typical for military-grade parts to protect the die from moisture and contaminants.