Analog Devices Inc. DC2395A-A

Overview

DC2395A-A from Analog Devices (formerly Linear Technology) is an evaluation board for the LTC2320-16 octal 16-bit simultaneous-sampling SAR ADC. It supports 1.5 Msps per channel, ±2 LSB INL, 82 dB SNR at 500 kHz, and dual-mode CMOS/LVDS serial interface - enabling high-fidelity data acquisition in multiphase motor control and optical networking systems.

For engineers reviewing the DC2395A-A datasheet, DC2395A-A pinout, DC2395A-A application, or DC2395A-A equivalent, this board provides verified signal integrity, reference buffer configuration options (2.048 V / 4.096 V), on-board clock generation, and FPGA-compatible LVDS/CMOS timing alignment - critical for validating high-speed, multi-channel sampling in real-world embedded systems.

Technical Context

The DC2395A-A implements a complete signal chain around the LTC2320-16, including precision decoupling (10 µF X5R + 0.1 µF ceramic per supply rail), matched differential analog input paths with 8VP-P range, and configurable reference routing (REFBUFEN-controlled internal buffers or external reference injection via REFOUT1–4). It supports all four digital I/O modes: CMOS (1.8 V / 2.5 V), LVDS, low-power LVDS, and SDR/DDR serialization.

Board-level design enforces strict layout rules for high-speed ADCs: ground plane continuity under the exposed pad (Pin 53), controlled-impedance LVDS traces (100 Ω differential), and isolated analog/digital power domains. Clock distribution uses a low-jitter oscillator feeding the CNV input and CLKOUT feedback path to ensure <500 ps aperture delay matching across all eight channels.

Key Specifications

Availability

DC2395A-A is available at Aetrix Electronics and suitable for high-speed data acquisition, multiphase motor control, and optical networking applications requiring stable component supply, traceable evaluation hardware, and production-ready signal integrity validation.

Supply support for DC2395A-A 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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The DC2395A-A belongs to ADI's Linear Technology evaluation board portfolio, designed specifically to accelerate prototyping and system validation of precision, high-speed data converters - with emphasis on simultaneous sampling, low-noise analog front-ends, and FPGA-optimized digital interfaces.

FAQ

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

The DC2395A-A evaluation board is a fully assembled and tested platform for the LTC2320-16 octal 16-bit simultaneous-sampling ADC. It enables rapid characterization of dynamic performance (SNR, THD, SFDR), timing validation (aperture delay matching, CLKOUT skew), and interface interoperability (CMOS/LVDS, SDR/DDR) - without requiring custom PCB design. DC2395A-A includes all necessary power regulation, reference buffering, clock generation, and FPGA-compatible connectors to directly interface with host systems.

Does the DC2395A-A support both internal and external voltage references?

Yes, the DC2395A-A supports both configurations. The board routes the LTC2320-16's REFBUFEN pin to a header, allowing users to enable internal 2.048 V or 4.096 V reference buffers (by tying REFBUFEN to VDD) or disable them (by grounding REFBUFEN) to inject an external reference via REFOUT1–4 pins. All four reference outputs are accessible and individually decoupled with 10 µF X5R capacitors, as specified in the LTC2320-16 datasheet.

Can the DC2395A-A operate with LVDS signaling at 1.5 Msps per channel?

Yes, the DC2395A-A fully supports LVDS operation at full speed. It implements proper 100 Ω differential termination at the receiver end (via onboard headers), provides matched-length LVDS trace pairs for SDOA± through SDOH± and CLKOUT±, and validates timing margins (tSCK, tHSDO, tDSCKCLKOUT) per LTC2320-16 specifications for LVDS SDR/DDR modes. The board's OVDD rail is configured for 2.5 V operation, meeting the required LVDS common-mode and differential voltage ranges.

How does the DC2395A-A handle power supply decoupling for the LTC2320-16?

The DC2395A-A implements rigorous decoupling per LTC2320-16 recommendations: each VDD pin (Pins 15, 21, 44, 52) is bypassed with parallel 10 µF X5R ceramic and 0.1 µF ceramic capacitors placed within 2 mm; OVDD pins (31, 37) use 0.1 µF ceramics; all REFOUT pins (1–4) include dedicated 10 µF X5R caps; and the exposed thermal pad (Pin 53) is soldered to a solid internal ground plane. This ensures stable operation across temperature and sample rates up to 1.5 Msps.

Is the DC2395A-A compatible with FPGA development platforms?

Yes, the DC2395A-A is explicitly designed for FPGA integration. It provides LVDS- and CMOS-compatible SDOx and CLKOUT signals routed to Samtec QSH/QTH headers with impedance-controlled traces, includes a low-jitter clock source synchronized to CNV, and delivers precise timing alignment (e.g., <4.5 ns SCK-to-CLKOUT delay) required for reliable data capture in Xilinx or Intel FPGAs. Pin mappings match standard FPGA I/O banks, and documentation includes Verilog/VHDL example code for data framing.