Analog Devices Inc. DC2395A-G

Overview

DC2395A-G from Analog Devices is an evaluation board for the LTC2320-12 octal, 12-bit + sign, 1.5 Msps/channel simultaneous sampling ADC. It enables full-speed validation of differential input performance, internal reference accuracy, CMOS/LVDS serial interface timing, and channel-to-channel matching in high-speed data acquisition systems operating up to 125°C.

For engineers reviewing the DC2395A-G datasheet, DC2395A-G pinout, DC2395A-G application, or DC2395A-G equivalent, this board supports rapid prototyping of multiphase motor control, optical networking, remote sensing, and imaging signal chains requiring synchronized 8-channel sampling with <1 psRMS aperture jitter and 77 dB SNR at 500 kHz.

Technical Context

The DC2395A-G implements a complete signal chain around the LTC2320-12, including precision analog front-end conditioning, configurable LVDS/CMOS I/O termination, on-board 4.096 V reference decoupling (10 µF X5R + 1 µF ceramic), and FPGA-compatible clock distribution with skew-matched CLKOUT. It supports both SDR and DDR serial readout modes across all eight channels.

Board-level design accommodates the LTC2320-12's dual supply architecture (VDD = 3.3 V or 5 V; OVDD = 1.8 V–2.5 V), provides dedicated ground planes for analog/digital/LVDS domains, and integrates low-inductance bypassing per pin group-enabling accurate measurement of dynamic specs including –90 dB THD and 93 dB SFDR at f_IN = 500 kHz.

Key Specifications

Availability

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

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

The DC2395A-G belongs to Analog Devices' Linear Technology evaluation board family, designed specifically to accelerate development of precision, high-speed data conversion systems using their SAR ADC portfolio.

FAQ

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

The DC2395A-G evaluation board is a fully assembled and tested platform for evaluating the LTC2320-12 octal 12-bit + sign simultaneous sampling ADC. It provides access to all critical signals-including eight differential analog inputs, CMOS/LVDS serial outputs, reference buffers, and power rails-enabling engineers to validate timing, noise, channel matching, and interface compatibility without custom PCB design. The DC2395A-G supports real-world conditions up to 125°C ambient.

Does the DC2395A-G support both CMOS and LVDS output modes for the LTC2320-12?

Yes, the DC2395A-G supports both CMOS and LVDS serial interface modes for the LTC2320-12 via jumper-selectable configuration. In CMOS mode, it routes SDO1–SDO8 and CLKOUT with proper 5-pF load matching and level translation for 1.8 V or 2.5 V hosts. In LVDS mode, it configures SDOA± through SDOC± and CLKOUT± with 100 Ω differential termination and FPGA-compatible routing-fully aligning with the LTC2320-12's dual-mode specification and timing diagrams in Rev. C datasheet.

Can the DC2395A-G be used to verify the LTC2320-12's simultaneous sampling accuracy and channel-to-channel matching?

Yes, the DC2395A-G is explicitly designed to validate simultaneous sampling performance of the LTC2320-12. Its layout maintains matched trace lengths for all eight analog input pairs and uses a single low-jitter CNV source distributed with minimal skew. This enables direct measurement of aperture delay matching (<500 ps), transient response (30 ns full-scale step), and inter-channel phase coherence-critical for applications like multiphase motor control and coherent imaging where timing alignment between all eight channels must be preserved.

What reference voltage options does the DC2395A-G support for the LTC2320-12?

The DC2395A-G supports both internal and external reference configurations for the LTC2320-12. By default, it uses the device's onboard 4.096 V reference buffers (REFOUT1–4), each decoupled with a 10 µF X5R ceramic capacitor as specified in the LTC2320-12 datasheet. Jumper options allow disabling REFBUFEN to accept external references from 1.25 V to VDD − 0.4 V, and the REF pin is accessible for common-reference distribution across multiple ADC cores-enabling precise comparison of internal vs. external reference performance on the DC2395A-G.

Is the DC2395A-G compatible with standard FPGA development tools and logic analyzers?

Yes, the DC2395A-G features FPGA-optimized signal routing and level compatibility. Its CLKOUT (or CLKOUT± in LVDS mode) provides a skew-matched echo of SCK for reliable data capture, and all digital I/Os meet LVDS or CMOS voltage thresholds per the LTC2320-12 specification. Test points and headers expose SDOx, SCK, CNV, and REFBUFEN for direct connection to logic analyzers or FPGA carrier boards. The board also includes a USB-based controller interface (Linduino) for automated register configuration and data streaming-fully documented in the DC2395A-G user guide.