Digital Lynx SX
High Performance, Expandable Recording System with Closed Loop Processing
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The Digital Lynx SX is our flagship data acquisition system, combining nearly three decades of electrophysiology innovations into one high performance research solution to serve your lab for decades to come. This system is highly configurable and upgradeable to fit your immediate research needs and budget while enabling you to scale channel counts through the addition of Combo Boards and integrate peripherals through a versatile array of I/O connections. With one complete electrophysiology system, you can record analog signals from nearly all existing electrode interfaces or silicon probe implants, record digitized signals from digital multiplexing headstages, and process wireless data!
Starting in 2020, each new Digital Lynx SX 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 |
| High Definition: | 40 kHz simultaneous sampling |
| High Fidelity: | 24 bit A/D converters |
| Full Bandwidth: | 0.1 to 8000 Hz |
| Wide Input Range: | ±132 mV (AC), ±1 V (DC) |
Closed Loop Processing
Real-time Closed Loop Feedback
Digital Lynx SX includes HPP, a built-in user-programmable processor for low-latency data 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.
- Theta Oscillation Detection
- Sharp Wave Ripple Detection
- User-Defined TTL Output Responses
- Additional capabilities can be programmed via C/C++, VHDL or Simulink®
See our HPP Page for more details, documents, downloads and Applications Project updates.
More about HPPUnmatched Signal Quality
Full Bandwidth Prevents Signal Clipping
Digital Lynx SX is a full bandwidth, DC-coupled recording system, preventing artifact and signal clipping, ending the need for gain adjustments, and 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 is available in two chassis sizes with either 4 or 16 Combo Board slots. An additional expansion option allows connection of low-cost digital multiplexing (MUX) headstages. A second fiber Ethernet connection may be used to input data from up to two FreeLynxTM headstages (up to 128 channels each), enabling closed loop processing of wirelessly-recorded neural signals.
- 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 each) - enables closed loop processing of wireless data
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 | AC, DC and Hybrid AC/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: Multiplexing Headstages (SX-M)
| 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 | 4 (8 bit) |
| Front Panel D/A Outputs | Two 1/8" stereo jacks (±1V input range) |
| 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®, Simulink®, C/C++ (RTOS), VHDL (FPGA) |
| HPP Interface | SD Card |
Cheetah Software
Extremely stable, user-friendly, high-performance software package, Cheetah is the ultimate solution for neural signal processing, display, recording, and network data distribution. Customize online experiment analysis and control. Process up to 512 input electrode channels. Required for use with Digital Lynx SX.
Features:
- 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
- Integration with additional software for auto-clustering, custom analysis and control, and more
More about Cheetah Software
Differential Stim
Neuralynx animal interface devices include this unique feature, giving you a built-in method for reward stimulation, lighting LEDs, joint shock delivery, eye-blink detection sensors, microphone signals, unbuffered signal transmission, or complex stimulus control. Up to 250 milliamps can be carried by these lines and the nominal resistance is about 3 ohms per meter. All Neuralynx acquisition systems may take advantage of this feature, depending on the actual interface devices chosen for your experiment.
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.
Optogenetics
Utilize a simple, lightweight, easy-to-use optogenetic stimulus solution: Halo Microdrives and Fiber Mounted LEDs (FLEDs). These devices incorporate an independently-adjustable light source into the microdrive as an additional shuttle, delivering consistent blue, green, amber, or red wavelengths without additional optical connections, patch cords, ferrules, or FORJ. Ask your sales representative for more details.