12-bit, 8-channel data acquisition system in a 20-pin DIP
The Maxim Integrated MAX186AEPP+ is a complete 12-bit data acquisition system (DAS) that integrates an 8-channel multiplexer, a successive-approximation ADC, and a serial interface in a single 20-pin DIP package. It samples at 133k samples per second over a dual ±5V supply, and communicates via MICROWIRE, QSPI, or SPI-compatible serial links. The through-hole PDIP footprint makes it a natural fit for prototyping, legacy system retrofits, and sockets in industrial or test equipment where board-level rework is expected.
Industrial temperature range and dual-supply operation
Rated from -40°C to 85°C, this ADC suits enclosures on the factory floor, outdoor base stations, or engine-bay-adjacent instrumentation where commercial-grade parts would drift or fail. The dual ±5V supply is a classic analog front-end rail — common in precision signal chains that need a clean bipolar swing. If your existing board only has a single 5V rail, you will need a DC-DC converter or charge pump to generate the negative supply; factor that into the BOM space and cost.
Package and lifecycle — sourcing posture
The MAX186AEPP+ is listed as Active and ROHS3 compliant, so there is no imminent last-time-buy or RoHS exemption expiry to track. The 20-pin PDIP package (0.300" body width) is a through-hole legacy footprint that remains widely socketed in industrial and test equipment. For volume builds, qualify the order against a firm RFQ to lock lead time.