Analog Devices Inc. DC2290A-D

Overview

DC2290A-D from Analog Devices (formerly Linear Technology) is a demonstration board for the LTC2386-16 - a 16-bit, 10Msps successive approximation register (SAR) ADC with serial LVDS interface, ±0.5LSB INL (max), 93.8dB SNR (typ at 1MHz), and 32-pin 5mm × 5mm QFN package. It enables high-fidelity data acquisition in imaging, instrumentation, and closed-loop control systems requiring no pipeline latency.

For engineers reviewing the DC2290A-D datasheet, DC2290A-D pinout, DC2290A-D application, or DC2290A-D equivalent, this board provides validated reference design, full-speed LVDS timing capture, differential analog input conditioning, and configurable one/two-lane output mode - critical for evaluating high-speed SAR ADC performance under real-world signal integrity and thermal constraints.

Technical Context

The DC2290A-D implements the LTC2386-16 in its UH (32-lead QFN) package with precision layout for 10Msps operation: matched-length LVDS traces (DA+/DA–, DB+/DB–, DCO+/DCO+), low-inductance analog ground plane, and dedicated 5V/2.5V supply filtering (10µF + 0.1µF per rail). It supports both single-ended and differential CNV start modes, TWOLANES configuration, and power-down via PD pin.

Board-level features include on-board 2.048V reference (REFIN), buffered 4.096V VREFBUF output, VCM common-mode bias generation, and test points for IN+, IN–, CLK+, CLK–, and all digital I/Os - enabling direct oscilloscope validation of sampling jitter (0.25psRMS), acquisition time (tACQ), and LVDS eye diagrams per LTC2386-16 spec.

Key Specifications

Availability

DC2290A-D is available at Aetrix Electronics and suitable for high-speed data acquisition, medical imaging front-ends, automated test equipment (ATE), and real-time control loop prototyping requiring stable component supply and production-ready evaluation infrastructure.

Supply support for DC2290A-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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving precision instrumentation, communications, and industrial markets.

The DC2290A-D belongs to Analog Devices' Signal Chain Evaluation Platform family - designed to accelerate validation of high-speed ADCs, DACs, and precision signal conditioning ICs in demanding measurement and control applications.

FAQ

What is the primary function of the DC2290A-D evaluation board?

The DC2290A-D evaluation board is a fully assembled and tested hardware platform for the LTC2386-16 16-bit, 10Msps SAR ADC. It provides immediate access to all device pins, validated high-speed LVDS routing, precision analog input conditioning, and configurable digital control - enabling rapid characterization of dynamic performance (SNR, SFDR, THD), timing margins, and system-level integration without custom PCB development. The DC2290A-D is not a standalone product but a reference design tool for the LTC2386-16.

Does the DC2290A-D support both one-lane and two-lane LVDS output modes?

Yes, the DC2290A-D fully supports both LVDS output configurations of the LTC2386-16. The TWOLANES pin (Jumper JP1) allows hardware-selectable operation: when shorted, it enables two-lane mode (DA± and DB± active, outputting 2 bits per clock cycle); when open, it defaults to one-lane mode (DA± only, DB± disabled). This is confirmed by the board's schematic, layout, and the LTC2386-16 datasheet timing diagrams (TD01 and TD02), and the DC2290A-D user guide explicitly validates both modes at full 10Msps throughput.

Can the DC2290A-D operate with an external reference instead of the internal 2.048V reference?

Yes, the DC2290A-D supports external reference injection. The REFIN pin (U1 Pin 9) is accessible via test point TP3 and can accept an external 2.048V reference (±0.04V range per datasheet). When an external reference is applied, the internal reference is automatically disabled. The board also provides a dedicated REFBUF test point (TP4) for monitoring or injecting the buffered 4.096V output. This capability is documented in the DC2290A-D user manual and aligns with LTC2386-16's REFIN specification (min/max voltage and impedance).

What power supplies are required to operate the DC2290A-D?

The DC2290A-D requires three independent, low-noise DC supplies: +5.0V @ ≥200mA for VDD (analog core), +2.5V @ ≥50mA for VDDL (digital logic), and +2.5V @ ≥50mA for OVDD (LVDS output drivers). These are delivered via the board's 12-pin ribbon cable interface to the DC2026 demo motherboard or compatible controller. On-board LDOs or regulators are not included - clean, well-bypassed external supplies are mandatory to achieve specified 93.8dB SNR and <0.25psRMS jitter performance of the LTC2386-16.

Is the DC2290A-D compatible with the Linduino or QuikEval platforms?

No, the DC2290A-D is not natively compatible with Linduino or QuikEval. It is designed exclusively for use with the DC2026 demonstration motherboard (or equivalent host with 12-pin ribbon interface and compatible firmware), which provides clock generation, CNV triggering, LVDS data capture, and USB-to-PC communication. While third-party FPGA-based capture systems can interface with the DC2290A-D's LVDS outputs, Analog Devices does not provide Linduino sketches or QuikEval GUI support for this board - its software ecosystem is tied to the DC2026 platform and associated LTspice/LTpowerCAD tools.