Digital Lynx SX

High Performance, Expandable Recording System with Closed Loop Processing

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Digital Lynx SX

Digital Lynx SX is highly configurable and upgradeable to fit your immediate research needs and budget: increase channel counts through the addition of Combo Boards and integrate peripherals through a versatile array of interfaces.

With the Digital Lynx SX, you can record neural signals as:

  • analog signals with full configurable referencing from all from electrodes, including silicon probe implants
  • digitized signals from our lower cost multiplexing headstages
  • digitized signals from our FreeLynxTM telemetry acquisition module

Flat frequency response accurately records both low-frequency Alpha / Theta oscillations and high-frequency Single Unit Action Potentials.

Each new Digital Lynx SX now includes the Hardware Processing Platform (HPP) for real-time, closed loop, data processing and response for neuromodulation and other advanced experiment designs.

High Density up to 512 channels, in increments of 32
High Definition 40 kHz simultaneous sampling
High Fidelity 24-bit A/D converters
Full Bandwidth DC to 8 kHz
Wide Input Range ±132 mV (AC), ±1 V (DC)

Closed Loop Processing

Real-time Closed Loop Feedback

Digital Lynx SX includes our Hardware Processing Platform (HPP), a built-in user-programmable processor for low-latency signal analysis and response (less than 1 millisecond). HPP can execute experiment stimuli with precise control of Digital Lynx SX analog and digital I/O: Combo Board inputs from buffered tethered headstages, digital multiplexing (MUX) headstages, FreeLynx wireless headstages, and TTL I/O.

  • Gamma Oscillation Detection
  • Theta Oscillation Detection
  • Sharp Wave Ripple Detection
  • User-Defined TTL Output Responses
  • Additional capabilities can be programmed via C/C++ or VHDL

To upgrade your current Digital Lynx SX with HPP, contact sales.


Unmatched Signal Quality

Full Bandwidth Prevents Signal Clipping

Digital Lynx SX is a full bandwidth, DC-coupled recording system, preventing post-stimulus artifact signal clipping, ending the need for gain adjustments and switches - enabling continuous accurate recording during stimulus delivery with no recovery time even when inputs are saturated. This allows investigation of after-discharge signals and shows long-term DC electrode potential shifts without clipping (Brinkmann, 2009).

Extremely Flexible Referencing

Referencing is the key to improving your signal-to-noise ratio! The Digital Lynx SX provides extremely flexible reference selection with up to 8 references for each 32-channel Combo Board and 8 global references shared across the system. All references are software controlled, eliminating the need to physically change connections at the animal interface. Connections can also be changed on-the-fly to optimize signal quality during recording.

System Configurations

Digital Lynx SX Chassis Options

Digital Lynx SX amplifier chassis is available with either 4 or 16 Combo Board slots. The Combo Board's MDR50 input connector receives signals from a vast array of analog interfaces and commutators to meet your implant type, mass, channels count and stimulus requirements. Each Combo Board digitizes up to 32 analog input channels at 24-bit resolution, with an additional 8 software-selectable references, 8 global references and 2 differential stimulus channels.

Digital Lynx SX may also be configured to input 16-bit digitized data from our lower cost multiplexing (MUX) headstages with the SX-M chassis option, or from FreeLynxTM telemetry modules with a WiFi router connection.

Additional configurations for optogenetics experiments, user-programmable low-latency processing and feedback, and external devices are available.

  • Digital Lynx 4SX: 4 Combo Board slots - up to 128 channels
  • Digital Lynx 16SX: 16 Combo Board slots - up to 512 channels
  • Digital Lynx 4SX-M or 16SX-M support MUX headstages - up to 128 channels
  • Connect 1 or 2 FreeLynx (up to 128 channels total) - enables closed loop processing of wireless data
  • Highly expandable for stimulus and experiment control
  • Connects to Cheetah workstation(s) via fiber Ethernet connection

Specifications: Digital Lynx Combo Board

Channels 32 recording, 8 software-selectable references, 2 stim pairs
Global References 8 via MDR26 connector
A/D Converter Resolution 24-bit
Sample Rates 16 - 40 kHz in 2 kHz steps
Signal Input Configurations DC and Hybrid DC coupled
AC Input Range ±132 mV (> 1 Hz)
DC Input Range > ±1 V
CMMR > 105 dB at 60 Hz
Input Referred Noise ≤ 1.3 µVRMS
Headstage Connector MDR50

Specifications: Digital Lynx SX-M with Multiplexing Headstages

Channels up to 128
References 1 (fixed) per 32-channel bank
Noise ≤ 2.5 µVRMS
Resolution 16-bit
Dynamic Input Range ±5 mV
Sample Rates 16 - 30 kHz in 2 kHz steps
Signal Inputs AC coupled (0.1 Hz to 8 kHz)
Headstage Connectors µDB25 (2)

Additional Digital Lynx SX Specifications

TTL I/O Ports 32-bits, configurable for port size & direction
Front Panel D/A Outputs Two 1/8" stereo jacks (±1V output range), 4 channels total
Power Supply +15 V
Data Links 2 x Gigabit Ethernet over Fiber
HPP Connectors USB 2.0, Gigabit Ethernet, Serial UART, JTAG
HPP Programming MATLAB®, C/C++ (RTOS), VHDL (FPGA)

Cheetah Software

required for use with Digital Lynx SX

An extremely stable, user-friendly, high-performance software package, Cheetah excels at neural signal processing, display, recording and network data distribution. Researchers can customize online experiment analysis and control, and process analog and/or digital data from up to 512 input electrode channels.

  • high resolution, full bandwidth recording with unfiltered, raw data files
  • channel cloning and digital signal processing for LFP/EEG/EMG and spikes
  • auto thresholding for functional spike detection levels
  • high performance visual displays for spikes and EEG
  • real-time distribution for experiment control and analysis
  • additional software integration for auto-clustering, custom analysis and control

Cheetah Software Details

Differential Stim

Neuralynx animal interface devices (tethers, headstages and EIBs) include this unique feature, providing a built-in method for stimulation delivery, lighting LEDs, joint shock delivery, eye-blink detection sensors, and microphone signals through direct signal connections.

Video Tracking

All Neuralynx acquisition systems are compatible with our video tracking solutions, supporting position, navigation, head direction and grid cell studies with multiple targets. Video tracking data is synchronized with neural signal data by Cheetah Software, enabled through a separate VTS license.


Halo Microdrives with Fiber Mounted LEDs (FLEDs) offer a simple, lightweight, easy-to-use optogenetic stimulus solution.

The FLED is an optogenetic light source that is mounted as a shuttle in the Halo Microdrive to provide a depth adjustable stimulus light source. LED power is delivered directly through the Tether and EIB which eliminates additional optical connections, patch cords, ferrules or FORJ.