Analog Devices Inc./Maxim Integrated MAX1300EVKIT+

Overview

MAX1300EVKIT+ from Maxim Integrated is an evaluation kit for the MAX1300 8-channel, ±3×VREF multirange 16-bit SAR ADC. It enables rapid validation of high-precision data acquisition in industrial control, avionics, and robotics systems. The kit supports software-programmable input ranges up to ±12.288V (with internal 4.096V reference), 115ksps throughput, ±16.5V overvoltage-tolerant inputs, and SPI/QSPI/MICROWIRE-compatible serial interface.

For engineers reviewing the MAX1300EVKIT+ datasheet, MAX1300EVKIT+ pinout, MAX1300EVKIT+ application, or MAX1300EVKIT+ equivalent, this kit provides full hardware access to all analog input channels (CH0–CH7), configurable reference modes (internal/external), power-supply domains (AVDD1/AVDD2/DVDD/DVDDO), and timing control signals (SCLK, CS, DIN, DOUT, SSTRB) for system-level signal integrity and conversion accuracy verification.

Technical Context

The MAX1300EVKIT+ implements a complete test platform for the MAX1300 ADC, including precision voltage sources, buffered analog input paths, isolated digital I/O, and configurable power rails. It replicates the device's four independent supply domains-AVDD1 (analog core), AVDD2 (preamplifier), DVDD (digital logic), and DVDDO (I/O level-shifting)-to validate noise coupling, PSRR, and channel-to-channel isolation under real-world conditions.

It supports all operating modes: external clock (115ksps), internal clock (106ksps), and external acquisition (84ksps), with on-board jumpers for REFCAP biasing (internal vs. external reference selection) and CHx input termination. The board includes calibrated test points for INL/DNL measurement, FFT analysis at 5kHz, and SNR/SINAD validation per IEEE Std 1057.

Key Specifications

Availability

MAX1300EVKIT+ is available at Aetrix Electronics and suitable for industrial control systems, avionics data acquisition, and robotics sensor interface development requiring stable component supply and full evaluation support.

Supply support for MAX1300EVKIT+ 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 high-reliability ICs for industrial, automotive, and communications applications.

The MAX1300EVKIT+ belongs to Maxim's high-accuracy data acquisition evaluation platform family, engineered to accelerate validation of multirange, fault-tolerant ADCs in harsh electromagnetic environments.

FAQ

What is the primary function of the MAX1300EVKIT+?

The MAX1300EVKIT+ is a fully assembled and tested evaluation platform for the MAX1300 16-bit multirange SAR ADC. It provides immediate hardware access to all analog inputs (CH0–CH7), reference configuration options (internal/external), power domains, and serial interface signals-enabling engineers to verify DC accuracy (INL ±2 LSB), dynamic performance (SINAD 91 dB), and system-level robustness before committing to custom PCB design. The MAX1300EVKIT+ does not contain the MAX1300 IC itself but is designed exclusively for it.

Does the MAX1300EVKIT+ support both MAX1300 and MAX1301 devices?

No, the MAX1300EVKIT+ is specifically designed for the MAX1300 (24-pin TSSOP, 8-channel) and is not mechanically or electrically compatible with the MAX1301 (20-pin TSSOP, 4-channel). Pin count, layout, and channel routing differ fundamentally; attempting to mount a MAX1301 will result in misalignment and open-circuit connections. Evaluation of the MAX1301 requires the separate MAX1301EVKIT+.

How does the MAX1300EVKIT+ handle reference voltage selection?

The MAX1300EVKIT+ provides jumper-selectable reference operation: JU1/JU2 configure REFCAP for internal reference (bypassed to AGND1) or external reference (tied to AVDD1). When using the internal +4.096V bandgap, REF is bypassed with a 1.0µF capacitor; for external reference, a precision 3.800V–4.136V source connects directly to REF. This dual-mode setup allows direct comparison of reference-related errors (TCREF ±30 ppm/°C, load regulation <10 mV) in system-level testing.

Can the MAX1300EVKIT+ be used to measure INL and DNL with production-grade accuracy?

Yes-the MAX1300EVKIT+ includes low-noise, Kelvin-connected test points at each analog input and reference node, plus a calibrated 50pF load on DOUT for timing compliance. When paired with a metrology-grade source (e.g., Keysight 3458A) and FFT analyzer, it supports IEEE Std 1057-compliant INL (±2 LSB max) and DNL (–1/+2 LSB) measurements across all seven single-ended ranges. The board's star-ground layout and separate AGND1/AGND2/AGND3 planes minimize ground bounce during code transitions.

What digital interface protocols does the MAX1300EVKIT+ support out-of-the-box?

The MAX1300EVKIT+ natively supports SPI, QSPI, and MICROWIRE protocols via its 4-wire serial interface (CS, SCLK, DIN, DOUT) and dedicated SSTRB strobe output. No firmware modification or hardware rework is needed-the onboard MAX1300 operates in standard mode with CPOL = 0, CPHA = 0, and MSB-first transmission. SSTRB provides precise read-ready indication in internal clock mode, eliminating polling overhead in µC-based systems using the MAX1300EVKIT+.