Analog Devices Inc./Maxim Integrated MAX19517ETM+

Overview

MAX19517ETM+ from Maxim Integrated is a dual-channel, 10-bit analog-to-digital converter (ADC) with 130Msps sampling rate, 59.8dBFS SNR at 70MHz, 82dBc SFDR at 70MHz, and 0.4V–1.4V input common-mode voltage range. It supports DC-coupled RF/IF front-ends in zero-IF receivers and operates from 1.8V analog supply or 2.5V–3.3V regulated AVDD.

For engineers reviewing the MAX19517ETM+ datasheet, MAX19517ETM+ pinout, MAX19517ETM+ application, or MAX19517ETM+ equivalent, key selection criteria include dual-channel interleaving capability, programmable clock divider modes (DIV1/DIV2/DIV4), selectable CMOS output bus configuration, and support for single-ended or differential analog/clock inputs in high-frequency communications systems.

Technical Context

The MAX19517ETM+ employs a 10-stage fully differential pipelined architecture with 9-cycle data latency, digital error correction to eliminate missing codes, and integrated duty-cycle equalization for robust high-speed timing. Its track-and-hold circuit uses switched-capacitor sampling with 120Ω input switch resistance and 1.2pF sampled capacitance per input.

It features dual independent analog input channels (INA+/INA− and INB+/INB−), programmable common-mode reference (0.45V–1.35V in 0.15V steps), and flexible power management with 1mW power-down, 21mW standby, and 74mW/channel active mode at 130Msps under 1.8V AVDD.

Key Specifications

Pinout & Package

MAX19517ETM+ is housed in a 48-pin thin QFN package (7mm × 7mm, 0.8mm height) with exposed thermal pad (EP) connected internally to GND. The package supports high-density PCB layouts and efficient heat dissipation via soldered EP connection to ground plane.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, 10-bit, high-speed ADC applications.

Compared with MAX19517ETM+, MAX19516ETM+ offers identical functionality at lower speed and power, while AD9236BCPZ-105 requires layout and firmware changes due to single-channel architecture and non-compatible control interface.

Availability

MAX19517ETM+ is available at Aetrix Electronics and suitable for cellular infrastructure, medical imaging, portable instrumentation, and digital broadcast equipment requiring stable component supply over extended temperature ranges and long production lifecycles.

Supply support for MAX19517ETM+ 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-speed data conversion ICs for demanding industrial, communications, and medical applications.

The MAX195xx family targets high-performance, low-power sampling in RF/IF receiver chains, emphasizing dual-channel synchronization, wide analog bandwidth, and flexible digital interfacing for software-defined radio and instrumentation systems.

FAQ

What is the maximum input frequency supported by the MAX19517ETM+?

The MAX19517ETM+ specifies a full-power analog input bandwidth of >850MHz, enabling direct sampling of RF signals up to S-band frequencies. Dynamic performance remains characterized up to 175MHz input, with SNR = 59.5dBFS and SFDR = 78dBc at that frequency. For optimal SFDR above 100MHz, maintain clean clock jitter (<0.3ps RMS) and proper analog input termination.

Does the MAX19517ETM+ support single-ended analog inputs?

Yes, the MAX19517ETM+ supports single-ended analog inputs on each channel: drive INA− or INB− to GND and apply signal to INA+ or INB+. Input impedance is ~4kΩ in this mode. Performance metrics (e.g., SNR, SFDR) are specified for differential operation but remain usable in single-ended configurations with appropriate layout and noise mitigation.

How does the MAX19517ETM+ handle power supply variations between AVDD and OVDD?

The MAX19517ETM+ separates analog (AVDD) and digital output (OVDD) supplies: AVDD operates at 1.8V or 2.5V–3.3V (with internal regulator), while OVDD runs independently from 1.8V–3.5V. This isolation prevents digital switching noise from degrading analog performance. Supply current scales linearly with OVDD voltage, and digital output drive strength adjusts accordingly to maintain signal integrity across logic families.

Can the MAX19517ETM+ operate without an external reference?

Yes, the MAX19517ETM+ includes an internal 1.25V bandgap reference. Bypass REFIO to GND with ≥0.1µF capacitor to enable it. Internal reference provides <±60ppm/°C temperature drift and supports full-scale range calculation VFS = 1.5 × VREFIO/1.25. External reference is optional for tighter gain accuracy or system-level calibration.

What is the data latency of the MAX19517ETM+ and how is it affected by clock divider mode?

The MAX19517ETM+ has fixed 9-clock-cycle latency from sample initiation to valid output data, regardless of DIV1/DIV2/DIV4 clock divider mode. Latency is measured from rising edge of CLK+ to valid D0A–D9A/D0B–D9B data aligned with DCLKA/DCLKB. Clock divider affects only the relationship between input master clock and internal sampling clock-not pipeline depth or propagation delay.