Analog Devices Inc./Maxim Integrated MAX11105EVKIT+

Overview

MAX11105EVKIT+ from Maxim Integrated is an evaluation kit designed to accelerate development and validation of the MAX11105 - a 12-bit, 2Msps, low-power, serial successive-approximation ADC with dual single-ended analog inputs, 73dB SNR, and SPI/QSPI/MICROWIRE-compatible 3-wire interface. It supports full-speed operation at 2.2V–3.6V supply, delivers 3.7mW power consumption at 2Msps, and targets portable data acquisition and battery-powered medical instrumentation.

For engineers reviewing the MAX11105EVKIT+ datasheet, MAX11105EVKIT+ pinout, MAX11105EVKIT+ application, or MAX11105EVKIT+ equivalent, this kit enables rapid characterization of MAX11105 performance-including INL (±1 LSB), DNL (no missing codes), SINAD (72.5 dB typ), aperture jitter (15 ps), and reference input flexibility-under real-world signal chain conditions with configurable analog input paths, on-board reference, and PC-based software control.

Technical Context

The MAX11105EVKIT+ provides complete hardware and firmware infrastructure to evaluate the MAX11105 ADC in its native dual-channel, 12-bit, 2Msps configuration. It implements the device's full timing interface-including CS, SCLK, CHSEL, and DOUT-with precise setup/hold timing compliance (t2 ≥ 5 ns, t4 ≤ 15 ns) and supports both internal and external reference modes (VREF = VDD or external 1V–VDD+0.05V).

The kit includes a USB-to-SPI bridge, Windows-compatible evaluation software, and configurable analog front-end with anti-aliasing filtering, gain/attenuation options, and test point access to all critical signals (AIN1, AIN2, REF, OVDD, AGND). It validates key operational behaviors: fast wake-up from 1.3µA power-down mode, variable I/O voltage support (1.5V–3.6V), and crosstalk rejection (–90 dB) between channels.

Key Specifications

Availability

MAX11105EVKIT+ is available at Aetrix Electronics and suitable for portable data logging, battery-operated medical instrumentation, and industrial sensor interface applications requiring stable component supply and rapid prototyping capability.

Supply support for MAX11105EVKIT+ 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, automotive, communications, and consumer applications.

The MAX11105EVKIT+ belongs to Maxim's precision data acquisition evaluation platform family, engineered to simplify validation of ultra-low-power, high-speed SAR ADCs in space-constrained, battery-sensitive systems.

FAQ

What is the primary function of the MAX11105EVKIT+?

The MAX11105EVKIT+ is an evaluation kit for the MAX11105 12-bit, 2Msps dual-channel SAR ADC. It provides hardware, firmware, and PC software to configure, capture, and analyze ADC performance-including INL, DNL, SNR, and timing-without custom PCB design. The MAX11105EVKIT+ enables immediate validation of the MAX11105 in real signal chains with configurable analog inputs and reference options.

Does the MAX11105EVKIT+ support external reference voltage for the MAX11105?

Yes, the MAX11105EVKIT+ fully supports external reference operation for the MAX11105 via its dedicated REF pin. The kit allows users to apply an external reference voltage from 1V to VDD + 0.05V, matching the MAX11105's specified REF input range. It also supports internal reference mode using VDD, enabling flexible testing of both configurations during MAX11105 evaluation.

Can the MAX11105EVKIT+ be used to evaluate other devices in the MAX111xx family?

No-the MAX11105EVKIT+ is specifically designed and calibrated for the MAX11105 (12-bit, 2Msps, dual-channel). While it shares physical layout similarities with kits for MAX11102/MAX11103, differences in timing, reference architecture, and channel count mean it does not support accurate evaluation of MAX11103 (3Msps), MAX11111 (8-bit), or single-channel variants like MAX11110 without firmware/hardware modification. Use only with the MAX11105.

What software and drivers are included with the MAX11105EVKIT+?

The MAX11105EVKIT+ ships with Windows-compatible evaluation software that provides real-time waveform display, FFT analysis, histogram generation, and DC accuracy measurement (INL/DNL). It includes a USB-to-SPI bridge driver and preconfigured firmware for the onboard microcontroller. No additional SDK or compiler license is required to operate the MAX11105EVKIT+ out-of-the-box.

Is the MAX11105EVKIT+ RoHS-compliant and lead-free?

Yes, the MAX11105EVKIT+ is RoHS-compliant and lead-free, as indicated by the "+" suffix in its part number per Maxim's ordering nomenclature. All PCB assemblies, components, and connectors meet EU Directive 2011/65/EU requirements, and the kit documentation confirms compliance with JEDEC J-STD-609A Class 1 marking standards for lead-free finishes.