Analog Devices Inc./Maxim Integrated MAX147EVC16-DIP

Overview

MAX147EVC16-DIP from Maxim Integrated is a through-hole evaluation system component that pairs the MAX147EVKIT-DIP evaluation kit with an 80C32 microcontroller module to enable PC-based functional validation of the MAX147 8-channel, 12-bit ADC. It supports 3V or 5V operation, QSPI serial interface (16- or 24-bit transfer modes), and provides on-board 3V regulation, level translation, analog switching, and op-amp buffering for signal conditioning.

For engineers reviewing the MAX147EVC16-DIP datasheet, MAX147EVC16-DIP pinout, MAX147EVC16-DIP application, or MAX147EVC16-DIP equivalent, this system delivers validated hardware layout, source-code-accessible firmware, real-time oscilloscope demo mode, high-speed sampling up to 91ksps, and configurable COM/reference voltage routing - all optimized for rapid characterization of MAX147/MAX146 ADC performance in mixed-signal embedded designs.

Technical Context

The MAX147EVC16-DIP implements a complete, pre-assembled data-acquisition testbed centered on the MAX147BCPP ADC. It integrates a 3V regulator (MAX666), 2.5V reference (MAX872), analog switch (MAX393) for COM routing, rail-to-rail op amps (MAX494/MAX495) for input buffering, and 74HCT04 level translators for 3V–5V interfacing between the ADC and 80C32 µC module.

It operates with either internal clock (1.68MHz SPBR setting) or external clock timing, supports unipolar/bipolar/differential input scaling, and enables power-cycling modes including FULLPD. Software-controlled features include COM voltage measurement (F4), reference voltage override (VREF command), and marker-tagged data logging in CSV format.

Key Specifications

Availability

MAX147EVC16-DIP is available at Aetrix Electronics and suitable for industrial sensor interface validation, embedded ADC prototyping, and mixed-signal design verification requiring stable component supply, traceable sourcing, and long-term BOM continuity.

Supply support for MAX147EVC16-DIP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing applications.

The MAX147EVC16-DIP belongs to Maxim's evaluation kit product line, designed specifically to accelerate development and validation of precision data-acquisition components like the MAX147/MAX146 family of 12-bit, 8-channel ADCs.

FAQ

What is the MAX147EVC16-DIP used for?

The MAX147EVC16-DIP is a complete evaluation system that enables engineers to validate the MAX147 12-bit, 8-channel ADC using an IBM PC and 80C32 microcontroller module. It provides pre-assembled hardware, QSPI interface firmware, real-time control software, and configurable analog signal conditioning - all in a through-hole, temperature-rated (0°C to +70°C) platform. The MAX147EVC16-DIP simplifies functional testing, timing analysis, and system-level integration of the MAX147 in industrial and embedded applications.

Does the MAX147EVC16-DIP support both MAX147 and MAX146 evaluation?

Yes, the MAX147EVC16-DIP evaluates both the MAX147 and MAX146 ADCs. While it ships with the MAX147BCPP installed, users can replace it with a MAX146BCPP (available as a free sample) and use the "MAX147 146" software command to activate MAX146-specific features such as FASTPD power-down mode. Jumper settings JU2 and JU5 must be adjusted to disable the external reference and enable the MAX146's internal bandgap reference when evaluating that device. The MAX147EVC16-DIP hardware is fully shared between both devices.

What power supply requirements does the MAX147EVC16-DIP have?

The MAX147EVC16-DIP requires a user-supplied 9V–20V DC source for the 80C32 µC module, which internally generates 5V for logic and powers the MAX147EVKIT-DIP's 3V regulator (MAX666). Alternatively, a regulated 3V supply can be applied directly to the VDD input pad by removing the MAX666 from its socket. Trim pot R16 allows fine-tuning of the 3V output between 2.3V and 3.6V. The MAX147EVC16-DIP supports both 3V-only and 5V-logic system configurations.

How does the MAX147EVC16-DIP handle COM voltage configuration?

The MAX147EVC16-DIP uses the MAX393 analog switch to route the MAX147's COM pin either to ground (default) or to an external analog common voltage applied to the EXTCOM input pad. This selection is controlled via software command F6. Additionally, pressing F4 measures the EXTCOM voltage by connecting it to channel 0 and performing multiple averaged single-ended unipolar readings. The MAX147EVC16-DIP also supports COM voltage monitoring and dynamic reconfiguration without hardware changes.

Can the MAX147EVC16-DIP perform high-speed sampling, and what are the limits?

Yes, the MAX147EVC16-DIP supports high-speed sampling via the 'S' command, achieving rates from 100sps up to 91ksps depending on QSPI mode (16-bit transfer) and µC timing overhead. Sampling is limited to one channel at a time in this mode, with delay control ('D' command) allowing microsecond- or millisecond-scale intervals. Timing must be verified with an oscilloscope due to non-linear software overhead. The MAX147EVC16-DIP also provides an oscilloscope demo mode ('O') for maximum-rate waveform observation without data storage.