Analog Devices Inc. DC2183A-B

Overview

DC2183A-B from Analog Devices (formerly Linear Technology) is a fully populated, ready-to-run evaluation board for the LTC2107 16-bit, 210Msps high-performance analog-to-digital converter. It enables direct sampling of IF frequencies up to 500MHz with 45fsRMS aperture jitter, 80dBFS SNR, and 98dBFS SFDR - optimized for software-defined radio, multi-channel GSM base stations, and radar front-ends.

For engineers reviewing the DC2183A-B datasheet, DC2183A-B pinout, DC2183A-B application, or DC2183A-B equivalent, this board provides validated LVDS/CMOS digital interface routing, precision clock conditioning, dither and output randomization control, and FPGA-compatible parallel data capture - critical for RF receiver design validation and high-speed ADC characterization.

Technical Context

The DC2183A-B implements the LTC2107 in double-data-rate LVDS output mode by default, supporting 210Msps sampling with programmable 3.5mA or 1.75mA LVDS drive strength. Its onboard clock circuit includes a low-jitter oscillator and duty-cycle stabilizer to meet the LTC2107's strict ENC± timing requirements (t_L/t_H = 1.16–2.38ns).

Signal integrity is maintained via controlled-impedance PCB layout: differential analog input traces (AIN+/AIN−) are length-matched and isolated; LVDS output pairs (D0_1± through D14_15±, CLKOUT±, OF±) use 100Ω differential routing; and separate analog (VDD/GND) and digital (OVDD/OGND) power domains are decoupled with 1µF + 0.1µF ceramic capacitors per supply pin.

Key Specifications

Availability

DC2183A-B is available at Aetrix Electronics and suitable for RF receiver prototyping, cellular base station development, and spectral analysis instrumentation requiring stable component supply and pre-validated high-speed ADC evaluation infrastructure.

Supply support for DC2183A-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. is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving communications, industrial, automotive, and aerospace markets.

The DC2183A-B belongs to Analog Devices' Linear Technology evaluation board family, designed specifically to accelerate time-to-test for high-speed data converters used in demanding RF and instrumentation applications.

FAQ

What is the primary function of the DC2183A-B evaluation board?

The DC2183A-B evaluation board is a complete hardware platform for evaluating the LTC2107 16-bit, 210Msps analog-to-digital converter. It provides all necessary power regulation, clock conditioning, analog input coupling, LVDS/CMOS output interfacing, and SPI configuration circuitry - enabling immediate functional validation and performance characterization of the DC2183A-B without custom PCB design.

Does the DC2183A-B support both LVDS and CMOS digital output modes?

Yes, the DC2183A-B supports both output modes. By default, it configures the LTC2107 for double-data-rate LVDS operation (3.5mA drive). Full-rate CMOS mode is enabled via jumper JP1 (PAR/SER) and JP2 (CS), allowing evaluation across interface standards - critical for verifying system-level compatibility with FPGAs or ASICs that require either LVDS or CMOS signaling.

How is clock jitter managed on the DC2183A-B to meet LTC2107 specifications?

The DC2183A-B incorporates a low-phase-noise crystal oscillator and an integrated duty-cycle stabilizer to ensure ENC± clock edges meet the LTC2107's stringent timing window (t_L/t_H = 1.16–2.38ns) and 45fsRMS aperture jitter requirement. The board also provides SMA connectors for clean external clock injection, preserving signal integrity through matched-length differential traces to the ENC+/ENC− pins of the DC2183A-B.

Can the DC2183A-B be used to evaluate dither and output randomization features of the LTC2107?

Yes, the DC2183A-B provides dedicated headers and jumpers to enable and control both optional features. SDI pin functionality is accessible via Jumper JP3 and Header P3, allowing users to toggle digital output randomization. Dither is configured via SPI register writes using the onboard USB-SPI interface - fully supported in the DC2183A-B's demonstration software for real-time SNR/SFDR trade-off analysis.

What analog input configurations does the DC2183A-B support for the LTC2107?

The DC2183A-B supports transformer-coupled differential analog input (50Ω, up to 500MHz) with adjustable common-mode voltage via the VCM output. It accommodates both internal (1.2V) and external (1.25V ±25mV) reference modes, selected by jumper JP4 on the SENSE pin. Input range options - 2.4VP-P (PGA = 0) or 1.6VP-P (PGA = 1) - are controlled via SCK logic level per LTC2107 specification, accessible through header P2 on the DC2183A-B.