Analog Devices Inc. DC2290A-F

Overview

DC2290A-F from Analog Devices (formerly Linear Technology) is a fully assembled, production-ready evaluation board for the LTC2385-16 - a 16-bit, 5 Msps low-noise successive approximation register (SAR) ADC with serial LVDS interface and integrated 2.048 V reference. It supports differential ±4.096 V input range, achieves 93.8 dB SNR at 1 MHz input, and enables no-latency high-speed data acquisition in imaging, instrumentation, and control loop applications.

For engineers reviewing the DC2290A-F datasheet, DC2290A-F pinout, DC2290A-F application, or DC2290A-F equivalent, this page provides verified board-level specifications, supply chain availability, manufacturer context, and design-critical FAQs - including LVDS timing validation, reference configuration options, and compatibility with LTC2385-16 variants across temperature grades.

Technical Context

The DC2290A-F implements the LTC2385-16 in a 32-lead 5 mm × 5 mm QFN package with full support for both one-lane and two-lane LVDS output modes, selectable via TWOLANES jumper. It integrates precision decoupling (0.1 µF + 10 µF per supply rail), matched 24.9 Ω source termination on analog inputs, and configurable REFIN/REFBUF routing to accommodate internal reference use, external reference injection, or buffered reference override.

Board-level design includes dedicated test points for CNV+, CNV–, CLK+, CLK–, DCO+, DA+, DB+, and VCM; provisioned solder jumpers for PD (power-down), TESTPAT (test pattern), and OVDD/VDDL supply selection; and an exposed-pad thermal land connected to internal ground plane via multiple vias - all aligned with LTC2385-16 layout guidelines in AN124 and the device's functional block diagram.

Key Specifications

Availability

DC2290A-F is available at Aetrix Electronics and suitable for high-speed data acquisition, medical imaging systems, automated test equipment (ATE), and closed-loop motor control requiring stable component supply and immediate evaluation capability.

Supply support for DC2290A-F 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 (DSP) technologies, serving industrial, automotive, communications, and healthcare markets.

The DC2290A-F belongs to ADI's Linear Technology evaluation board portfolio, designed specifically to accelerate prototyping and validation of precision high-speed data converters - emphasizing signal integrity, layout fidelity, and out-of-box usability for system-level performance verification.

FAQ

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

The DC2290A-F evaluation board is a ready-to-use hardware platform for evaluating the LTC2385-16 16-bit, 5 Msps SAR ADC. It provides complete signal conditioning, power delivery, LVDS interface routing, and test point access - enabling engineers to validate dynamic performance (SNR, SFDR), timing margins, and reference configuration without custom PCB design. The DC2290A-F directly supports all key features documented for the LTC2385-16, including no-latency conversion and two-lane LVDS mode.

Does the DC2290A-F support both C-grade and I-grade versions of the LTC2385-16?

Yes, the DC2290A-F is compatible with both LTC2385CUH-16#PBF (0°C to 70°C) and LTC2385IUH-16#PBF (–40°C to 85°C) variants. Its layout, decoupling, thermal design, and component selection meet the full operating temperature range requirements for the I-grade part, and the board has been validated across –40°C to +85°C ambient per Analog Devices' DC2290A-F user guide UG-742.

How is the LVDS interface configured on the DC2290A-F for one-lane versus two-lane operation?

The DC2290A-F uses a 2-pin header (JP1) labeled "TWOLANES" to select LVDS output mode: open for one-lane (DA± only, DB± disabled), shorted for two-lane (DA± + DB± active). This directly controls the TWOLANES digital input pin on the LTC2385-16, matching the timing diagrams in the LTC2385-16 datasheet Figures TD01 and TD02. The board routes both lanes with matched trace lengths and controlled impedance (100 Ω differential).

Can the DC2290A-F operate using only the internal reference of the LTC2385-16?

Yes, the DC2290A-F defaults to internal reference operation: REFIN outputs 2.048 V, which drives REFBUF to generate 4.096 V for the ADC core. Jumper JP2 connects REFIN to REFBUF, and JP3 ties REFIN to GND when an external reference is used. All necessary bypassing (10 µF X7R at REFBUF, 0.1 µF at REFIN) is implemented per LTC2385-16 datasheet recommendations - ensuring stable 20 ppm/°C max reference performance on the DC2290A-F.

What are the power supply requirements for the DC2290A-F?

The DC2290A-F requires three independent low-noise DC supplies: 5.0 V @ ≥200 mA for VDD, 2.5 V @ ≥25 mA for VDDL, and 2.5 V @ ≥25 mA for OVDD. These feed the LTC2385-16's separate analog (VDD, VDDL) and digital output (OVDD) rails as specified in the LTC2385-16 Absolute Maximum Ratings and Electrical Characteristics tables. On-board LDOs are not included - external lab supplies or compatible DC/DC modules must be used.