RHD Recording Headstages
We offer several types of RHD headstages that allow users to connect to electrodes (not included) and record electrophysiological signals from up to 128 low-noise amplifier channels.
Each headstage contains an Intan RHD amplifier chip, a few support components, a small connector to mate with a digital interface cable, and a connector to mate with a variety of commercial recording electrodes. Multiple headstages may be connected to an RHD recording controller or USB interface board using thin, flexible SPI interface cables. All signals are amplified and digitized directly on the headstage, so data on the interface cables is purely digital and immune to noise pickup.
Every RHD headstage has the following capabilities when used in an RHD recording system:
- Monitor and record signals from all amplifier channels at sampling rates up to 30 kSamples/s per channel.
- Reconfigure amplifier analog bandwidth from software over a range of 0.1 Hz to 20 kHz.
- Measure in situ electrode impedances at user-selectable frequencies.
Note: RHD headstages do not work with the RHS stim/recording controller. The RHD and RHS systems are not compatible
RHD 128-Channel Recording Headstage
Our 128-channel recording headstage has two 64-pin Molex SlimStack electrode connectors that mate with the following silicon probes:
- Atlas Neuroengineering (contact Atlas for specific probes)
- NeuroNexus (I128, IH128, I256, or IH256 connector)
Explore more details on the operation of the 128-channel headstage.
Technical Specs | Part #C3316 RHD 128ch | ||
|---|---|---|---|
headstage inputs | 128 unipolar inputs, common reference, ground | ||
electrode connector | 2x Molex SlimStack 502426-6410 | ||
data cable connector | 12-pin RHD SPI cable connector;
high-speed serial digital data | ||
size | 35 mm x 21 mm | ||
mass | 2.05 grams | ||
Headstage Details
The zero-ohm jumper R0 on the bottom side of the headstage may be removed to disconnect the reference electrode from ground. Two mounting holes are provided. Center-to-center spacing of the two Molex connectors is 8.8646 mm (0.349 inches).
Related Products
- RHD recording system
- RHD SPI interface cables
- RHD dual headstage adapter
- Adapters for custom electrodes
- LVDS adapter board for custom hardware development
Supporting Documents
- Application note: Accelerometer calibration
- Application note: Adding an LED to headstages
- Application note: Interfacing a microphone to headstages
- Application note: Adapting RHD SPI cables to a commutator
- RHD SPI cable/connector specification
- Complete schematics of all RHD headstages are available for download.