FMC125 FPGA Mezzanine Card

Multi-mode analog input


This product reached the end of its lifecycle (end-of-life) on December 21, 2020

The FMC125 has been superseded by a product featuring additional capabilities and/or an upgraded version of the ADC device. Abaco Systems recommends the FMC126 for designs that would previously have used the FMC125.

We recommend the following alternative solutions:


The FMC125 is a quad-channel multi-mode A/D FMC, fully compliant with VITA 57.1 standards. The card provides four 8-bit ADC channels that enable simultaneous sampling of 4, 2, or 1 channel with a maximum sample rate of 1.25 GSPS (4-channel mode), 2.5 GSPS (2-channel mode), or 5.0 GSPS (1-channel mode).

The sample clock can be supplied externally through a coax connection or supplied by an internal clock source (optionally locked to an external reference). Additionally a trigger input for customized sampling control is available.

The FMC125 daughter card is mechanically and electrically compliant with the FMC standard as established by ANSI/VITA 57.1.

It has a HPC (high pin count) compatible connector, front panel I/O, and can be used in a conduction cooled environment.

The design is based on the E2V Quad A/D EV8AQ160 chip-set having DDR LVDS outputs. The analog signal inputs are available on the front panel on coax connections and have individual calibration circuits for fine-tuning of gain, offset, and phase.

The FMC125 allows flexible control of clock source, sampling frequency, and calibration through the I2C serial communication bus. Further, the card is equipped with power supply and temperature monitoring and offers several power-down modes to switch off unused functions.

Board Support Package

Our Board Support Package helps customers get their hardware implementation underway as quickly as possible by providing reference designs, the Stellar IP FPGA development tool, and the 4FM GUI user interface for controlling and monitoring the hardware, as well as other supporting elements.


Form Factor
Air, Conduction
Analog Input
Data Rate
5000 Msps (1 Ch), 2500 Msps (2 Ch), 1250 Msps (4 Ch)
1, 2, 4
FMC Connector

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