Analog Devices Inc./Maxim Integrated MAX19516ETM+

Overview

MAX19516ETM+ from Maxim Integrated is a dual-channel, 10-bit, 100Msps analog-to-digital converter optimized for RF/IF sampling in communications and medical imaging systems. It delivers 60dBFS SNR and 82dBc SFDR at 70MHz input, operates from 1.8V analog supply (or 2.5–3.3V with integrated regulator), and supports DC-coupled inputs via 0.4V–1.4V common-mode range.

For engineers reviewing the MAX19516ETM+ datasheet, MAX19516ETM+ pinout, MAX19516ETM+ application, or MAX19516ETM+ equivalent, this page provides verified technical context, real-world interface timing, confirmed dual-parallel/multiplexed CMOS output configurations, and validated alternatives for ZIF/IF receiver designs requiring low-power, high-bandwidth digitization.

Technical Context

The MAX19516ETM+ employs a 10-stage fully differential pipelined architecture with 9-cycle latency, enabling high-speed conversion while maintaining low power. Its internal digital error correction ensures no missing codes and compensates for comparator offsets across all stages.

It supports both differential and single-ended analog inputs, differential or single-ended clock inputs, and programmable clock division (DIV1/DIV2/DIV4). The device features dual independent CMOS output buses or a single multiplexed bus, with DCLK outputs and configurable data timing to simplify high-speed FPGA/ASIC interfacing.

Key Specifications

Pinout & Package

MAX19516ETM+ is housed in a 48-pin thin QFN package (7mm × 7mm, exposed pad), optimized for thermal performance and high-density PCB layouts in RF subsystems.

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 MAX19516ETM+, MAX19515ETM+ trades speed for lower power and cost in sub-65Msps systems, while ADS5272IPFP offers identical speed but demands more external support circuitry and lacks integrated clock/data synchronization aids.

Availability

MAX19516ETM+ is available at Aetrix Electronics and suitable for cellular infrastructure, medical ultrasound, point-to-point microwave, and digital set-top box applications requiring stable component supply, RoHS compliance, and extended temperature operation (-40°C to +85°C).

Supply support for MAX19516ETM+ 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, communications, and medical applications.

The MAX195xx family targets high-performance, low-power sampling in RF/IF signal chains - specifically engineered for zero-IF and high-IF receivers where dynamic range, power efficiency, and integration reduce front-end complexity.

FAQ

What is the maximum analog input frequency supported by the MAX19516ETM+?

The MAX19516ETM+ has a full-power bandwidth of 850MHz, meaning it can accurately digitize analog signals with fundamental frequencies up to 850MHz while maintaining specified SNR and SFDR performance. This enables undersampling of IF signals beyond 400MHz in zero-IF architectures, as confirmed in the device's dynamic performance plots and electrical characteristics table.

Does the MAX19516ETM+ support both differential and single-ended clock inputs?

Yes, the MAX19516ETM+ supports both configurations. When CLK− is tied to ground, CLK+ functions as a single-ended logic-level clock input with thresholds of 0.3V (low) and 1.5V (high). In differential mode, CLK+/CLK− accept 0.4–2.0VP-P signals with self-biased common-mode voltage (1.0–1.4V DC-coupled), as specified in the Absolute Maximum Ratings and Electrical Characteristics sections.

How does the MAX19516ETM+ handle power-down and standby modes?

The MAX19516ETM+ offers three low-power states: power-down mode consumes only 0.65–0.9mW (0.65mW typical at 1.8V), standby mode draws 9.5–13mW, and active dual-channel operation uses 63–77mW at 1.8V AVDD. Wake-up time from shutdown is 5ms (with internal reference), while standby wake-up takes just 15µs - enabling rapid response in burst-mode communication systems.

Can the MAX19516ETM+ operate with an external reference voltage?

Yes, the MAX19516ETM+ supports external reference via the REFIO pin, which accepts 1.25V ±5% (1.1875V to 1.3125V). The internal bandgap reference is 1.25V ±2%, and the full-scale voltage scales linearly as VFS = 1.5 × (VREFIO / 1.25). External referencing improves system-level accuracy when matched to precision DACs or calibrated sensor chains.

What output data formats does the MAX19516ETM+ support?

The MAX19516ETM+ supports three programmable output data formats via its SPI interface: two's complement (for signed arithmetic), Gray code (to minimize bit-transition errors during sampling), and offset binary (for legacy system compatibility). Format selection is retained across power cycles when using nonvolatile register settings, and the SDIN/FORMAT pin indicates current mode when SPEN is high.