Analog Devices Inc./Maxim Integrated MAX11162EVKIT#

Overview

MAX11162EVKIT# from Maxim Integrated is an evaluation kit for the MAX11162 16-bit, 500ksps pseudo-differential SAR ADC. It enables rapid validation of high-accuracy analog-to-digital conversion in unipolar 0V–5V input systems, supporting ±0.2 LSB DNL, 93dB SNR at 10kHz, and SPI/QSPI/MICROWIRE-compatible daisy-chain operation. The kit is used to verify timing-critical multichannel acquisition in industrial process control and test equipment.

For engineers reviewing the MAX11162EVKIT# datasheet, MAX11162EVKIT# pinout, MAX11162EVKIT# application, or MAX11162EVKIT# equivalent, this kit provides full hardware access to the MAX11162's CNVST-triggered conversion start, SDO-based busy indicator, 10-pin µMAX interface, and external reference (REF) input-enabling accurate characterization of acquisition time (0.5µs), throughput (500ksps), and noise floor (0.43LSB_RMS).

Technical Context

The MAX11162EVKIT# implements a complete signal chain around the MAX11162 ADC, including precision bypassing (10µF REF cap, 0.1µF VDD/OVDD caps), 4.7nF COG ceramic filter at AIN+, and optional MAX9632 op-amp buffer support. It supports both CS-mode and daisy-chain serial interface configurations via SDI logic level at CNVST rising edge.

It validates key timing parameters: tCONV = 1.5µs max, tCYC = 2µs, and SCLK compatibility across 2.3V–5.25V OVDD. The board exposes all 10 µMAX pins-including REF, AIN+, AIN-, CNVST, SDO, SCLK, SDI, VDD, OVDD, and GND-for probing, reference injection, and synchronization with host controllers.

Key Specifications

Availability

MAX11162EVKIT# is available at Aetrix Electronics and suitable for industrial process control, medical instrumentation, automatic test equipment, and narrowband receiver development requiring stable component supply and fast evaluation turnaround.

Supply support for MAX11162EVKIT# 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 measurement and control applications.

The MAX11162EVKIT# belongs to Maxim's high-performance data acquisition evaluation platform family, engineered to accelerate validation of SAR ADCs in metrology-grade systems where DC accuracy, AC fidelity, and timing determinism are critical.

FAQ

What is the primary function of the MAX11162EVKIT#?

The MAX11162EVKIT# is an evaluation kit designed exclusively for the MAX11162 16-bit, 500ksps pseudo-differential SAR ADC. It provides a fully assembled, tested PCB with all necessary bypassing, filtering, and interface circuitry to validate the MAX11162's performance-including INL (±0.6 LSB), SNR (93dB), and daisy-chain timing-in real-world signal chains before system integration.

Does the MAX11162EVKIT# support daisy-chain configuration of multiple MAX11162 devices?

Yes, the MAX11162EVKIT# supports daisy-chain operation by exposing SDI and SDO pins with proper termination and layout. When configured with SDI held low at CNVST rising edge, the kit enables cascaded readout of multiple MAX11162 devices on a single SDO line-validating simultaneous sampling and busy-indicator synchronization as specified in the MAX11162 datasheet.

Can the MAX11162EVKIT# be used with external reference sources other than 5V?

Yes, the MAX11162EVKIT# accepts external reference voltages from 2.5V to 5V on the REF pin, per MAX11162 specifications. The board includes a 10µF X5R/X7R capacitor footprint optimized for low-noise reference decoupling, and supports recommended references like MAX6126 (2.5V/3V/4.096V/5V) and MAX6341 (4.096V) listed in the MAX11162 datasheet.

What op-amp is recommended for driving the AIN+ input when using the MAX11162EVKIT#?

The MAX11162EVKIT# schematic and layout accommodate the MAX9632 op-amp as the preferred driver-selected for its 0.9nV/√Hz input noise, 55MHz bandwidth, and -128dB THD at 10kHz, which preserves the MAX11162's 93dB SNR and -105dB THD. The board includes footprint and routing for direct MAX9632 integration with 5Ω series isolation resistor and 4.7nF COG filter.

How does the MAX11162EVKIT# implement the busy indicator feature of the MAX11162?

The MAX11162EVKIT# routes the MAX11162's SDO pin directly to header test points and supports busy indicator operation in both CS and daisy-chain modes. When enabled (CNVST or SDI low at conversion completion in CS mode; SCLK high at CNVST edge in daisy-chain mode), the kit allows observation of the busy bit prior to data readback-eliminating need for external timers and validating the 1-SCLK flush sequence required before valid 16-bit output.