Analog Devices Inc./Maxim Integrated MAX11633EVKIT#

Overview

MAX11633EVKIT# from Maxim Integrated is an evaluation kit for the MAX11633 12-bit, 16-channel, 300ksps SAR ADC with internal 2.5V reference, on-chip FIFO, scan mode, and SPI/QSPI/MICROWIRE-compatible interface - designed for precision data acquisition in industrial control and patient monitoring systems.

For engineers reviewing the MAX11633EVKIT# datasheet, MAX11633EVKIT# pinout, MAX11633EVKIT# application, or MAX11633EVKIT# equivalent, this kit enables rapid validation of the MAX11633's unipolar analog input performance, internal clock operation, FIFO buffering, and low-power shutdown behavior under real-world signal conditioning and microcontroller interface conditions.

Technical Context

The MAX11633EVKIT# provides full hardware and firmware support to evaluate the MAX11633 ADC's successive-approximation architecture, including its internal track-and-hold circuit, 16-entry FIFO, and four selectable clock modes (CKSEL[1:0]). It supports both internal (2.5V) and external reference configurations across the full -40°C to +85°C operating range.

This kit implements a complete signal chain: buffered analog inputs (AIN0–AIN15), configurable CNVST trigger, EOC-driven interrupt signaling, and a 3-wire serial interface routed to standard headers for direct connection to host microcontrollers or logic analyzers - all powered from a single 3V supply matching the MAX11633's 2.7V–3.6V VDD range.

Key Specifications

Availability

MAX11633EVKIT# is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, and embedded data logging requiring stable component supply and fast time-to-validation for high-accuracy analog front-ends.

Supply support for MAX11633EVKIT# 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 precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.

The MAX11633EVKIT# belongs to Maxim's precision data-acquisition evaluation platform family, engineered to accelerate design-in of low-power, multichannel ADCs in system supervision and sensor interface applications.

FAQ

What is the primary function of the MAX11633EVKIT#?

The MAX11633EVKIT# is a fully assembled and tested evaluation platform for the MAX11633 12-bit, 16-channel SAR ADC. It enables engineers to validate key performance parameters - including INL/DNL accuracy (±1 LSB), FIFO depth (16 entries), sampling rate (up to 300ksps), and internal 2.5V reference stability - without custom PCB development. The kit includes jumpers, test points, and firmware to exercise all clock modes and register functions of the MAX11633.

Does the MAX11633EVKIT# support both internal and external reference configurations?

Yes, the MAX11633EVKIT# supports both reference modes. It ships configured for the MAX11633's internal 2.5V reference (matching its 2.7V–3.6V VDD range), but includes dedicated REF pin access and bypass capacitor footprints to enable external reference use (1V to VDD). The onboard firmware allows runtime switching between reference sources via the REFSEL bits in the setup register, preserving full ADC functionality in either mode.

Can the MAX11633EVKIT# be used to evaluate FIFO and scan-mode operation?

Yes, the MAX11633EVKIT# firmware and hardware are explicitly designed to demonstrate FIFO and scan-mode capabilities. It supports programmable channel scans (NSCAN[1:0]), internal averaging (NAVG[1:0]), and FIFO readout with automatic overwrite protection. Users can configure up to 16 channels in sequence, store results in the 16-deep FIFO, and read them out via interrupt-driven EOC signaling - validating real-time data throughput without host CPU polling overhead.

What power supply requirements does the MAX11633EVKIT# have?

The MAX11633EVKIT# operates from a single 3V DC supply (2.7V–3.6V), directly matching the MAX11633's specified VDD range. It includes an onboard LDO regulator, bulk and high-frequency decoupling capacitors, and test points for measuring supply current in active, idle, and AutoShutdown™ states. Typical supply current is 1.75mA at 300ksps with internal reference enabled, dropping to <5µA in shutdown - all measurable using the kit's shunt resistor and header pins.

Is the MAX11633EVKIT# compatible with standard microcontroller development environments?

Yes, the MAX11633EVKIT# features a standard 0.1"-spaced 10-pin header for CS, SCLK, DIN, DOUT, EOC, GND, and VDD, compatible with common ARM Cortex-M, PIC, and ESP32 development boards. Its SPI/QSPI/MICROWIRE interface uses standard timing (CPOL=CPHA=0 or 1), and the included firmware source code (available from Maxim/Analog Devices) provides portable C drivers and register-level examples for rapid integration into custom host firmware stacks.