Analog Devices Inc./Maxim Integrated MAX1448EVKIT

Overview

MAX1448EVKIT from Maxim Integrated is an evaluation kit designed to accelerate prototyping and performance validation of the MAX1448 10-bit, 80Msps, single 3.0V analog-to-digital converter. It supports full-speed operation with differential or single-ended analog inputs, on-board clock generation, configurable reference modes (internal/external), and CMOS-compatible parallel digital outputs. Engineers use it for rapid characterization in ultrasound imaging, CCD digitization, and IF sampling applications.

For engineers reviewing the MAX1448EVKIT datasheet, MAX1448EVKIT pinout, MAX1448EVKIT application, or MAX1448EVKIT equivalent, this kit provides immediate access to real-world dynamic performance metrics-including 59dB SNR at 20MHz input, 74dBc SFDR, and <2psRMS aperture jitter-under production-relevant conditions with minimal external support circuitry.

Technical Context

The MAX1448EVKIT implements a complete signal chain around the MAX1448 ADC, including a low-jitter clock source (e.g., crystal oscillator or SMA input), selectable input coupling (transformer or op-amp-based single-ended-to-differential conversion), and configurable reference routing (REFOUT→REFIN, external buffered/unbuffered). It supports all three reference modes and enables direct measurement of latency (5.5 clock cycles), power-down recovery (1.5µs), and output timing margins (tENABLE = 10ns, tDISABLE = 15ns).

Board-level design features include matched-length differential analog traces, isolated analog/digital ground planes, dedicated bypassing (0.1µF + 2.2µF per supply rail), and test points for IN+, IN-, CLK, D9–D0, OE, and PD. The layout adheres to high-speed ADC layout best practices to preserve 400MHz analog input bandwidth and minimize digital switching noise coupling.

Key Specifications

Availability

MAX1448EVKIT is available at Aetrix Electronics and suitable for ultrasound imaging systems, CCD-based optical sensors, baseband/IF digitization modules, and video digitizing applications requiring stable component supply and fast time-to-test capability.

Supply support for MAX1448EVKIT 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 precision data acquisition and signal conditioning.

The MAX1448EVKIT belongs to Maxim's high-speed data converter evaluation platform family, engineered specifically to validate dynamic performance of pipeline ADCs in demanding RF, medical imaging, and communications applications.

FAQ

What is the primary function of the MAX1448EVKIT?

The MAX1448EVKIT is a fully assembled and tested evaluation platform for the MAX1448 10-bit, 80Msps ADC. It enables engineers to rapidly evaluate key performance parameters-including SNR, SFDR, THD, and latency-under real-world conditions. The MAX1448EVKIT includes clock generation, analog input conditioning, reference configuration options, and digital output interfacing, eliminating the need for custom PCB development during early-stage validation.

Does the MAX1448EVKIT support both differential and single-ended analog inputs?

Yes, the MAX1448EVKIT supports both configurations. It provides two input paths: one using an RF transformer for true differential drive (optimal for SFDR and harmonic suppression), and another using op-amps for single-ended-to-differential conversion with DC level shifting. Both paths are independently accessible via solder jumpers, allowing direct comparison of performance trade-offs between input types on the same MAX1448EVKIT board.

Can the MAX1448EVKIT operate with an external reference voltage?

Yes, the MAX1448EVKIT supports all three reference modes specified for the MAX1448: internal (REFOUT → REFIN), buffered external (voltage applied to REFIN), and unbuffered external (REFIN grounded, REFP/REFN/COM driven externally). Jumpers and test points allow quick reconfiguration without soldering, enabling accurate assessment of how reference choice affects gain error, offset drift, and dynamic range in the MAX1448EVKIT setup.

What clock sources are compatible with the MAX1448EVKIT?

The MAX1448EVKIT accepts clock signals via SMA connector (AC-coupled, 50Ω) or onboard crystal oscillator (fundamental mode, 80MHz). Clock inputs must meet MAX1448 specifications: CMOS-compatible levels, <2ns rise/fall times, and low jitter (<1psRMS recommended). The MAX1448EVKIT's clock distribution network is optimized to minimize skew and maintain signal integrity up to 83.3MHz, ensuring reliable sampling at full 80Msps rate.

How does the MAX1448EVKIT facilitate power-down mode testing?

The MAX1448EVKIT provides dedicated test points and jumper-selectable control for the PD (power-down) and OE (output enable) pins of the MAX1448. With PD high and OE high, the MAX1448 enters 5µA shutdown mode while retaining register state. Wake-up time (1.5µs) and recovery stability can be measured directly using oscilloscope probes on VDD current and output data lines-enabling precise validation of low-power sequencing in battery-operated or duty-cycled systems using the MAX1448EVKIT.