Analog Devices Inc. DC2425A-B

Overview

DC2425A-B from Analog Devices (formerly Linear Technology) is a demonstration board for the LTC2310-16 16-bit, 2Msps differential SAR ADC. It enables rapid evaluation of high-speed data acquisition performance including 82dB SNR, ±3LSB INL (typ), and wide-input common-mode range under real-world signal conditions. Designed for lab validation of precision analog front-ends in communications and imaging systems.

For engineers reviewing the DC2425A-B datasheet, DC2425A-B pinout, DC2425A-B application, or DC2425A-B equivalent, this page delivers verified hardware configuration details, supported interface modes (CMOS/LVDS), reference voltage options (2.048V/4.096V internal or external 1.25V), thermal performance across –40°C to 125°C, and power states (nap/sleep) - all critical for system-level integration and signal chain design.

Technical Context

The DC2425A-B implements the LTC2310-16 in a fully populated, optimized layout with matched 100Ω LVDS termination, low-inductance decoupling (1µF + 10µF per supply), and Kelvin-connected analog ground plane. It supports both CMOS and LVDS serial I/O via jumper-selectable OVDD and CMOS/LVDS pin configuration, enabling direct FPGA or DSP interfacing without level-shifting.

It integrates the LTC2310-16's internal 4.096V temperature-compensated reference (20ppm/°C max drift) and provides access to REFIN (1.25V buffered output) and REFOUT pins for external reference validation. The board includes test points for AIN+, AIN–, CNV, SCK, and SDO signals, plus on-board clock conditioning circuitry compatible with function generator or FPGA-driven timing sources.

Key Specifications

Availability

DC2425A-B is available at Aetrix Electronics and suitable for high-speed data acquisition systems, optical networking transceivers, and remote sensor monitoring requiring stable component supply and validated reference designs.

Supply support for DC2425A-B 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.

The DC2425A-B belongs to Analog Devices' Signal Chain Evaluation Platform family, designed specifically to accelerate prototyping and characterization of precision data converters in demanding applications such as test equipment, medical imaging, and aerospace telemetry.

FAQ

What is the primary function of the DC2425A-B?

The DC2425A-B is a fully assembled demonstration board for the LTC2310-16 16-bit, 2Msps differential SAR ADC. Its purpose is to provide engineers with a ready-to-use platform for evaluating dynamic performance metrics-including SNR, THD, INL, and timing behavior-under real-world signal conditions and interface configurations (CMOS or LVDS). DC2425A-B includes calibrated reference paths, low-noise power delivery, and test-point access to all critical analog and digital signals.

Does DC2425A-B support both CMOS and LVDS interface modes?

Yes, DC2425A-B supports both CMOS and LVDS serial communication modes for the LTC2310-16. Interface selection is controlled by onboard jumpers that configure the OVDD supply voltage and the CMOS/LVDS pin (Pin 10). LVDS mode requires external 100Ω differential termination at the receiver, while CMOS mode operates with standard single-ended logic levels (1.8V or 2.5V). The board's layout maintains signal integrity for both modes per LTC2310-16 specifications.

Can DC2425A-B operate with an external reference voltage?

Yes, DC2425A-B allows use of an external reference via the REFIN pin of the LTC2310-16. When REFIN is grounded, the internal reference buffer is disabled and REFOUT becomes available as an input node accepting 1.25V to VDD. The board provides dedicated test points and bypass capacitor footprints (10µF X5R) for stable external reference implementation, enabling validation of alternative references or system-level reference sharing.

What power supply requirements does DC2425A-B have?

DC2425A-B requires a single 3.3V or 5V DC supply applied to the VDD header. The board regulates and distributes this to the LTC2310-16's VDD and OVDD rails, with separate 1µF and 10µF ceramic decoupling per supply pin. Total power consumption remains ≤35mW at 5V/2Msps, and nap/sleep modes are accessible via CNV timing control - allowing DC2425A-B to replicate low-power system behavior during idle intervals.

Is DC2425A-B compatible with the LTC2310-16H high-temperature grade?

Yes, DC2425A-B is fully compatible with the LTC2310-16H variant (–40°C to 125°C operating range). The board uses components rated for extended temperature operation, including X5R ceramics, high-reliability connectors, and thermal vias tied to the exposed pad (Pin 17). Layout and grounding practices follow Analog Devices' recommendations for high-temperature stability, ensuring valid characterization across the full industrial and automotive temperature envelope.