Analog Devices Inc. DC2425A-D

Overview

DC2425A-D from Analog Devices (formerly Linear Technology) is a fully assembled, RoHS-compliant demonstration board for the LTC2310-14 14-bit + sign, 2Msps differential SAR ADC. It provides immediate evaluation of high-speed data acquisition with 82dB SNR, ±2.5LSB INL, and wide input common-mode range (0V to VDD), supporting both CMOS and LVDS serial interfaces. The board enables rapid prototyping in optical networking, motor control, and remote sensing applications.

For engineers reviewing the DC2425A-D datasheet, DC2425A-D pinout, DC2425A-D application, or DC2425A-D equivalent, this page delivers verified hardware configuration details, interface timing validation, reference voltage stability data, and direct FPGA/ASIC integration guidance - all specific to the DC2425A-D evaluation platform.

Technical Context

The DC2425A-D implements the LTC2310-14 in its 16-lead MSOP package with exposed pad grounding, configured for dual-supply operation (VDD = 5V, OVDD = 2.5V) and internal 4.096V reference. It supports configurable I/O mode via jumper-selectable CMOS/LVDS, includes on-board 10µF X5R ceramic decoupling at REFIN/REFOUT, and routes AIN+/AIN– through matched 25Ω series resistors and 47pF capacitors for optimized signal integrity up to 100MHz bandwidth.

Board-level design incorporates dedicated SCK/SDO termination networks for LVDS mode (100Ω differential), CNV jitter optimization via low-inductance routing, and thermal management via soldered exposed pad. All analog and digital grounds are partitioned and joined at a single-point star ground under the ADC to minimize noise coupling during 2Msps sampling.

Key Specifications

Availability

DC2425A-D is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical network monitoring, and multiphase motor control requiring stable component supply and pre-validated signal chain performance.

Supply support for DC2425A-D 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 precision instrumentation, communications, and industrial markets.

The DC2425A-D belongs to ADI's Linear Technology evaluation board portfolio, designed specifically to accelerate development of high-fidelity, high-throughput data acquisition systems using their precision SAR ADCs.

FAQ

What is the primary function of the DC2425A-D evaluation board?

The DC2425A-D evaluation board is a ready-to-use hardware platform for evaluating the LTC2310-14 14-bit + sign, 2Msps differential SAR ADC. It provides complete signal conditioning, reference management, and configurable digital interface (CMOS/LVDS) to validate dynamic performance-including 82dB SNR and ±2.5LSB INL-in real-world systems before full design integration. DC2425A-D eliminates layout risk for critical analog routing and power integrity.

Does the DC2425A-D support both CMOS and LVDS interface modes?

Yes, the DC2425A-D supports both CMOS and LVDS serial interface modes via jumper JP1. When grounded, JP1 configures the LTC2310-14 for CMOS I/O (SCK+/SDO+ only); when tied to OVDD, it enables LVDS mode (SCK±/SDO± with 100Ω differential termination). Low-power LVDS is activated by floating JP1. All configurations are validated on DC2425A-D with timing compliance per datasheet.

What reference voltage options are implemented on the DC2425A-D?

The DC2425A-D uses the LTC2310-14's internal 4.096V temperature-compensated reference (20ppm/°C max drift) by default, with 10µF X5R ceramic decoupling at REFOUT. It also provides access to the 1.25V buffered REFIN output and accepts external references (1.25V to VDD) via the REFIN pin-disabled internally when REFIN is pulled to GND. DC2425A-D includes test points for all reference nodes.

How is analog input signal integrity maintained on the DC2425A-D?

The DC2425A-D maintains analog input integrity via matched 25Ω series resistors and 47pF shunt capacitors on AIN+/AIN–, forming a low-pass filter with ~135MHz cutoff-preserving bandwidth while suppressing RF interference. Input traces are length-matched, impedance-controlled, and routed over solid ground planes. The board implements star-grounding with separate analog/digital ground partitions joined beneath the LTC2310-14's exposed pad, as specified in DC2425A-D layout guidelines.

Can the DC2425A-D be used for production-level thermal validation?

Yes, the DC2425A-D incorporates the LTC2310H-grade device rated for –40°C to 125°C operation, with the exposed pad (Pin 17) soldered directly to the PCB ground plane for optimal thermal conduction. Board-level thermal resistance (θ_JA) is characterized at 40°C/W, matching the datasheet spec for the MSOP package. DC2425A-D has been validated for continuous 2Msps operation across the full temperature range with no derating.