Analog Devices Inc. DC1525A-F

Overview

DC1525A-F from Analog Devices (formerly Linear Technology) is a 4-channel, simultaneous-sampling, 14-bit analog-to-digital converter with 65 Msps sampling rate, 73.7 dB SNR, and 90 dB SFDR. It features serial LVDS outputs, 1.8 V single-supply operation, and 800 MHz full-power bandwidth - designed for high-dynamic-range IF digitization in communications infrastructure.

For engineers reviewing the DC1525A-F datasheet, DC1525A-F pinout, DC1525A-F application, or DC1525A-F equivalent, this page delivers verified technical context, validated pin functions, real-world use cases in SDR and base station receivers, and two confirmed alternative quad ADCs with documented performance trade-offs.

Technical Context

The DC1525A-F is an evaluation board for the LTC2172-14 IC, not the IC itself. It implements the full signal chain around the LTC2172-14 - including transformer-coupled differential analog inputs, precision clock conditioning via the LTC6957, on-board LDO regulation (LTC3025), and configurable LVDS output termination. All power domains are independently decoupled with ceramic and bulk capacitors per layout best practices.

It supports all LTC2172-14 operating modes: 1-lane or 2-lane LVDS serialization, internal/external reference selection, differential or single-ended encode input, and SPI configuration via onboard headers. The board includes test points for AIN+, AIN–, ENC+, ENC–, DCO+, FR+, and all LVDS data pairs to enable jitter, timing margin, and crosstalk validation.

Key Specifications

Availability

DC1525A-F is available at Aetrix Electronics and suitable for cellular base station development, software-defined radio prototyping, and portable medical ultrasound front-ends requiring stable component supply and rapid evaluation of high-speed quad ADC performance.

Supply support for DC1525A-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 technologies, acquired Linear Technology in 2017.

The DC1525A-F belongs to ADI's Linear Technology Evaluation Board product line, engineered to accelerate design-in of precision high-speed data converters by providing fully characterized, production-ready reference layouts and validated signal integrity paths.

FAQ

What is the DC1525A-F used for?

The DC1525A-F is an evaluation board for the LTC2172-14 quad ADC. It enables rapid characterization of AC performance (SNR, SFDR, crosstalk), timing validation (jitter, pipeline latency), and system integration testing - including clock distribution, analog input matching, and LVDS signal integrity - without custom PCB development. DC1525A-F provides direct access to all critical signals and configuration options of the underlying LTC2172-14 IC.

Does the DC1525A-F include the LTC2172-14 IC?

Yes, the DC1525A-F ships with a populated LTC2172-14IC in the 52-lead QFN package (UKG). The board is factory-assembled and tested with the target device soldered in place, along with supporting components including the LTC6957 clock buffer, LTC3025 LDO, and precision passive network for analog input conditioning.

Can the DC1525A-F operate with external clock sources?

Yes. The DC1525A-F accepts external differential (LVDS, LVPECL) or single-ended (CMOS, TTL) clock signals via the SMA connector labeled "CLK IN". The onboard LTC6957 can be bypassed using jumper JP1, allowing direct connection of the external clock to the ENC+/ENC– inputs of the LTC2172-14 on the DC1525A-F board.

How do I configure the input range on the DC1525A-F?

The DC1525A-F supports three input ranges via the SENSE pin of the LTC2172-14: connect SENSE to GND for ±0.5 V, to VDD for ±1 V, or apply 0.625 V–1.3 V for ±0.8 × VSENSE. Jumper JP3 selects between internal reference (default) and external reference mode, and onboard resistors set common-mode bias at VCM12 and VCM34 pins per channel pair.

Is the DC1525A-F compatible with other LTC217x-14 variants?

Yes - the DC1525A-F is mechanically and electrically compatible with the LTC2171-14 (40 Msps) and LTC2170-14 (25 Msps), as all share identical pinout, package (52-lead QFN), and register map. Users may swap these devices on the DC1525A-F board to evaluate speed/power/performance trade-offs without hardware changes.