Analog Devices Inc. DC1751A-D

Overview

DC1751A-D from Analog Devices (formerly Linear Technology) is an evaluation board for the LTM9008-14 octal 14-bit, 65Msps simultaneous-sampling ADC. It enables high-fidelity digitization of wideband RF signals up to 800MHz full-power bandwidth, delivering 73dB SNR and 90dB SFDR at 70MHz input - critical for multichannel SDR and portable medical imaging systems.

For engineers reviewing the DC1751A-D datasheet, DC1751A-D pinout, DC1751A-D application, or DC1751A-D equivalent, this page provides verified board-level specifications, supported ADC variants (LTM9008-14/LTM9007-14/LTM9006-14), serial LVDS interface configuration, on-board clock conditioning, and layout-optimized analog input routing for low crosstalk (<–90dBc near-channel, <–105dBc far-channel).

Technical Context

The DC1751A-D implements a complete signal chain for the LTM9008-14 μModule ADC, including precision differential analog input networks with matched 50Ω termination, ultra-low-jitter clock distribution via onboard HMC1033 PLL, and configurable LVDS serialization (1-lane or 2-lane mode). It supports all three speed grades: 65Msps (LTM9008-14), 40Msps (LTM9007-14), and 25Msps (LTM9006-14).

Board-level design integrates internal bypass capacitance per channel, flow-through pinout routing, and dedicated VCM bias networks (VCM14/VCM23/VCM58/VCM67) to maintain ±1LSB INL and ±0.3LSB DNL across temperature. Power delivery uses separate 1.8V analog (VDD) and output (OVDD) rails with low-noise regulation.

Key Specifications

Availability

DC1751A-D is available at Aetrix Electronics and suitable for cellular base stations, software-defined radios, portable medical ultrasound, and multichannel data acquisition requiring stable component supply, traceable sourcing, and long-term lifecycle support.

Supply support for DC1751A-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 for precision instrumentation, communications, and industrial applications.

The DC1751A-D belongs to Analog Devices' μModule evaluation platform family, designed to accelerate prototyping and validation of high-speed, multichannel data converters in RF, medical, and test equipment applications.

FAQ

What is the primary function of the DC1751A-D evaluation board?

The DC1751A-D evaluation board is a fully populated, ready-to-use platform for evaluating the LTM9008-14, LTM9007-14, and LTM9006-14 octal 14-bit ADCs. It provides calibrated analog input paths, low-jitter clock generation, serial LVDS output routing, and SPI configuration interfaces - enabling immediate performance characterization without custom PCB development. DC1751A-D supports all key features of the underlying ADC, including shutdown/nap modes and selectable input ranges (1VP-P to 2VP-P).

Which ADC variants are compatible with the DC1751A-D board?

The DC1751A-D is mechanically and electrically compatible with three speed-grade variants: LTM9008-14 (65Msps), LTM9007-14 (40Msps), and LTM9006-14 (25Msps). All share identical 140-pin BGA packaging (11.25mm × 9mm), pinout, power requirements (1.8V VDD/OVDD), and serial LVDS interface structure. No hardware modification is required to swap between them - only firmware and timing configuration changes.

Does the DC1751A-D support both 1-lane and 2-lane LVDS serialization modes?

Yes, the DC1751A-D supports both 1-lane and 2-lane LVDS serialization as defined by the LTM9008-14 datasheet. Mode selection is controlled via the PAR/SER pin and CS/SCK logic levels. In 2-lane mode, each channel outputs two bits per clock cycle (e.g., OUT1A/OUT1B); in 1-lane mode, one bit per channel is serialized. The board's routing preserves signal integrity for both configurations, with matched trace lengths and 100Ω differential termination enabled.

How does the DC1751A-D handle clock input and jitter requirements?

The DC1751A-D includes an onboard HMC1033 programmable PLL to generate low-phase-noise encode clocks for the LTM9008-14. It accepts external 10MHz–250MHz reference inputs and delivers sub-0.15psRMS acquisition jitter - meeting the ADC's stringent tJITTER specification. The board also supports direct single-ended or differential clock injection (ENC+/ENC–) with internal duty-cycle stabilization, ensuring full-speed performance across varying input duty cycles.

Can the DC1751A-D be used for production-level signal acquisition?

The DC1751A-D is designed for evaluation and rapid prototyping, not volume production. While it delivers full datasheet performance (73dB SNR, ±1LSB INL), its layout prioritizes flexibility and measurement access over miniaturization or thermal optimization. For production, Analog Devices recommends designing a custom carrier board using the LTM9008-14 μModule IC directly - leveraging the DC1751A-D's validated schematics and layout guidelines for analog routing, grounding, and decoupling.