Analog Devices Inc./Maxim Integrated MAX11150EVKIT#

Overview

MAX11150EVKIT# from Maxim Integrated is an evaluation kit for the MAX11150 - an 18-bit, 500ksps pseudo-differential SAR ADC with internal 4.096V reference, ±3.7 LSB INL (typ), 93.0dB SNR, and 3mm × 5mm µMAX package. It enables rapid validation of high-accuracy data acquisition in industrial process control, medical instrumentation, and automatic test equipment.

For engineers reviewing the MAX11150EVKIT# datasheet, MAX11150EVKIT# pinout, MAX11150EVKIT# application, or MAX11150EVKIT# equivalent, this kit provides full hardware access to the MAX11150's SPI-compatible interface, daisy-chain capability, busy indicator, and analog input protection circuitry - supporting design-in decisions for precision DC/AC measurement systems requiring ≤1.9 LSBRMS transition noise and -101.2dB THD at 10kHz.

Technical Context

The MAX11150EVKIT# implements a complete signal chain around the MAX11150 IC, including precision decoupling (10µF REF bypass, dual 0.1µF VDD/OVDD caps), overvoltage clamp resistor network, and buffered analog input path compatible with op-amps like MAX9632. It supports both CS-mode and daisy-chain serial configurations via jumper-selectable SDI logic level at CNVST rising edge.

Kit-level timing aligns with MAX11150's 1.5µs max conversion time and 0.5µs acquisition window, with layout optimized for low-noise 18-bit sampling - including ground plane isolation, short AIN+/AIN- traces, and dedicated REF routing. The board operates across -40°C to +85°C ambient, matching the IC's specified temperature range.

Key Specifications

Availability

MAX11150EVKIT# is available at Aetrix Electronics and suitable for industrial process control, medical instrumentation, automatic test equipment, and data acquisition systems requiring stable component supply and rapid prototyping of high-resolution analog front-ends.

Supply support for MAX11150EVKIT# 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) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and test/measurement applications.

The MAX11150EVKIT# belongs to Maxim's high-accuracy data converter evaluation platform family, engineered specifically to accelerate validation of SAR ADCs in systems where DC linearity, AC fidelity, and reference integration are critical.

FAQ

What is the primary function of the MAX11150EVKIT#?

The MAX11150EVKIT# is a fully assembled and tested evaluation platform for the MAX11150 18-bit SAR ADC. It provides immediate access to all device pins, preconfigured power regulation, proper decoupling, analog input protection, and interface jumpers - enabling engineers to characterize SNR, INL, THD, and timing behavior of the MAX11150 without custom PCB development.

Does the MAX11150EVKIT# support daisy-chaining multiple MAX11150 devices?

Yes, the MAX11150EVKIT# supports daisy-chain mode via configurable SDI logic level at CNVST rising edge. When SDI is pulled low during conversion start, the kit routes SDO to SDI header pins, allowing cascaded readout of multiple MAX11150 devices on a single SDO line - verified per MAX11150's timing spec (tSCLK ≥ 24ns for OVDD > 2.7V).

Can the MAX11150EVKIT# be used to evaluate the internal reference accuracy of the MAX11150?

Yes. The MAX11150EVKIT# includes a dedicated REF test point and 10µF X5R/X7R capacitor placed adjacent to the REF pin as specified in the MAX11150 datasheet. This allows direct measurement of reference voltage (4.092–4.100V typ), temperature drift (±7ppm/°C), and long-term stability under varying VDD and temperature conditions.

What analog input protection features are implemented on the MAX11150EVKIT#?

The MAX11150EVKIT# implements the MAX11150's patented overvoltage clamp architecture: AIN+ is protected up to ±20mA fault current using series resistors sized per the datasheet equation (RS = (VFAULTMAX – 7V)/20mA). Clamping activates beyond -300mV to (VDD + 300mV), with safe operating range maintained at -100mV to (VDD + 100mV) for full accuracy.

Is the MAX11150EVKIT# compatible with standard SPI host controllers?

Yes. The MAX11150EVKIT# supports SPI-compatible 3-wire and 4-wire CS modes, with SDO valid on both SCLK edges and setup/hold times compliant with common microcontrollers (e.g., tSSDICNV = 5ns, tHSDICNV = 0ns). It has been validated with host platforms including ARM Cortex-M and TI C2000 DSPs using standard SPI peripheral drivers.