Analog Devices Inc. DC2395A-C

Overview

DC2395A-C from Analog Devices (formerly Linear Technology) is a fully populated, ready-to-use evaluation board for the LTC2325-16 quad 16-bit 5Msps/channel simultaneous-sampling SAR ADC. It supports differential ±4.096V input range, 82dB SNR at 2.2MHz, on-board 4.096V reference, and configurable CMOS/LVDS serial interface - enabling rapid validation in high-speed data acquisition systems.

For engineers reviewing the DC2395A-C datasheet, DC2395A-C pinout, DC2395A-C application, or DC2395A-C equivalent, this board provides verified signal integrity, FPGA-compatible LVDS/CMOS timing, calibrated analog front-end, and documented layout practices for multi-channel synchronized sampling in optical networking and motor control designs.

Technical Context

The DC2395A-C implements the LTC2325-16 in its 52-pin QFN package with full decoupling, precision analog routing, and matched-length LVDS traces to support simultaneous sampling across four channels with <500ps aperture delay matching. It integrates all required reference bypassing (10µF + 1µF per REFOUT), OVDD/IO power sequencing, and configurable SDR/DDR clocking via onboard jumpers.

Board-level features include SMA-connected analog inputs with 50Ω termination options, FPGA-compatible header interfaces for SDOx/CLKOUT/SCK, jumper-selectable CMOS/LVDS mode, and on-board temperature monitoring. The design complies with JEDEC JESD204B timing margins for 5Msps operation and supports both internal and external reference configurations.

Key Specifications

Availability

DC2395A-C is available at Aetrix Electronics and suitable for high-speed data acquisition, optical network monitoring, multiphase motor control, and communications test equipment requiring stable component supply and production-ready evaluation infrastructure.

Supply support for DC2395A-C 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

Analog Devices, Inc. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The DC2395A-C belongs to Analog Devices' precision data acquisition evaluation platform family, designed specifically to accelerate prototyping and system integration of high-speed, multi-channel SAR ADCs in noise-sensitive and timing-critical applications.

FAQ

What is the primary function of the DC2395A-C evaluation board?

The DC2395A-C evaluation board is a complete hardware platform for evaluating the LTC2325-16 quad 16-bit simultaneous-sampling ADC. It provides all necessary power regulation, reference buffering, analog input conditioning, and digital interface routing - allowing engineers to validate performance metrics like SNR, THD, and inter-channel skew without custom PCB development. DC2395A-C enables immediate functional testing and signal integrity analysis of the LTC2325-16 in real-world high-speed acquisition scenarios.

Does DC2395A-C support both CMOS and LVDS digital interfaces for the LTC2325-16?

Yes, DC2395A-C supports both CMOS and LVDS digital I/O modes for the LTC2325-16 via onboard jumpers. The CMOS mode operates at 1.8V or 2.5V OVDD levels with single-ended SDO outputs, while LVDS mode uses differential SDOA± through SDOD± pairs with 100Ω termination. DC2395A-C also allows selection between SDR and DDR serial data formats using the SDR/DDR jumper, ensuring compatibility with diverse FPGA and ASIC host controllers.

Can DC2395A-C operate with an external reference instead of the internal 4.096V buffer?

Yes, DC2395A-C supports external reference operation. The REFBUFEN pin is accessible via test point and can be pulled low to disable all four internal reference buffers (REFOUT1–REFOUT4). External references (1.25V to 5V) may then be applied directly to the REF or individual REFOUTx pins. DC2395A-C includes dedicated headers and bypass capacitor footprints for seamless integration of external reference ICs or precision voltage sources alongside the LTC2325-16.

What analog input configurations does DC2395A-C provide for the LTC2325-16?

DC2395A-C provides four fully independent differential analog input paths, each with SMA connectors, switchable 50Ω termination, and AC/DC coupling options via solder jumpers. Each channel supports the LTC2325-16's full ±4.096V differential input range and wide common-mode range (0V to VDD). Input traces are length-matched and impedance-controlled to preserve timing alignment critical for simultaneous sampling - a key requirement verified in DC2395A-C's design for multiphase motor control and phased-array applications.

Is DC2395A-C compatible with standard FPGA development tools and software?

Yes, DC2395A-C is designed for direct integration with industry-standard FPGA platforms. Its digital interface headers expose all LTC2325-16 signals (SCK, CNV, CLKOUT, SDO1–SDO4) at 0.1" pitch with defined voltage levels and timing margins compliant with Xilinx and Intel FPGA I/O standards. Analog Devices provides open-source HDL reference designs and GUI-based evaluation software (DC2395A-C Demo Software) that supports real-time FFT, histogram, and spectral analysis - enabling immediate characterization of DC2395A-C + LTC2325-16 performance without custom firmware development.