QC
QuantaControl

Precision Feedback Control

Control at the
Speed of Light

FPGA-based closed-loop feedback systems with real-time lock-in amplification and PID control. Sub-microsecond response times for the most demanding precision measurement applications.

125MSPS

ADC Sample Rate

<1µs

Loop Latency

14bit

Resolution

6stage

CIC Decimation

Engineered for Precision

Every component of the signal chain is designed for maximum performance and minimum latency.

FPGA-Native Processing

All signal processing runs directly on the Xilinx Zynq FPGA at 125 MHz clock rate. No CPU bottleneck, no OS jitter — deterministic real-time control.

Lock-in Amplification

Multi-tone signal generation with DDS and 6-stage CIC decimation filtering. Extract signals buried deep in noise with configurable bandwidth.

Real-time PID Control

Q16.16 fixed-point PI controller with configurable gains and anti-windup. Closes the loop at up to 1 MSPS after CIC decimation.

Web-Based Control

Real-time oscilloscope display, parameter tuning, and Allan deviation analysis — all from your browser. No proprietary software needed.

Signal Chain Architecture

A complete closed-loop feedback system running at 125 MHz on a single FPGA, with real-time web monitoring and control.

Signal Gen3-tone DDS+DAC14-bit OUTSMA CableADC14-bit INCIC Filter6-stageScaler64b → 14bPIDKp + KiOutput MUXCH1 / CH2Web UIScope + Control-Closed-Loop Feedback Controller — FPGA Signal Chain125 MHz125 MSPSR=125 → 1 MSPSFPGA (Zynq-7010/7020)

Ready to take control?

Whether you need a turnkey feedback controller or custom FPGA development, we can help.

Contact Us