8-bit Flash ADC in a 20-pin DIP — what it does and where it fits
The Maxim Integrated MAX153CPP+ is an 8-bit Flash analog-to-digital converter with a 1 MSPS sampling rate, built around a parallel-output Flash architecture. It accepts a single-ended analog input and presents conversion results on an 8-bit parallel data bus. The part operates from either a dual ±5V supply or a single 5V rail, giving flexibility in mixed-signal designs where analog and digital supplies share a common 5V plane. The 20-pin DIP package (0.300" width) is a through-hole footprint suited for prototyping boards, socketed production runs, or retrofitting legacy ADC sockets. The commercial temperature range (0°C to 70°C) confines it to benchtop instrumentation, lab equipment, and indoor control systems — not for extended-temperature environments.
Supply options and signal conditioning
The MAX153CPP+ accepts analog and digital supplies in the ±5V or single 5V range. With a single-ended input, the analog signal must be referenced to the converter's common-mode range — typically ground for a unipolar 0-to-5V input swing. An external reference voltage sets the full-scale range, so the accuracy of the conversion ties directly to the reference source's stability. Plan for a low-drift reference if the application spans the full temperature range.
Lifecycle and sourcing posture
The MAX153CPP+ carries an active lifecycle status per the manufacturer. For a BOM line that calls out this 8-bit Flash ADC, the risk of a last-time-buy surprise is low.