MP36R

BIOPAC

Versatile 4-Channel Multi-physiology System for Life Science Research & Teaching

The MP36R Research System is a flexible, high-performance platform for life science research and advanced teaching applications. Designed for seamless integration with BIOPAC’s powerful AcqKnowledge software, the MP36R provides everything you need to record, analyze, and interpret a wide range of physiological signals.

Whether you're building a teaching lab, launching a research study, or developing custom experimental protocols, the MP36R provides the versatility, power, and ease of use needed for modern life science applications.

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System components

Each MP36R Starter System includes:

MP36R 4-channel data acquisition unit with built-in universal amplifiers
AcqKnowledge data acquisition and analysis software
USB cable
Power supply with US or Euro power cord (based on destination)
Digital hardware and software guides for easy setup

At the core of the system is the MP36R, a 4-channel data acquisition unit with universal built-in amplifiers, capable of recording a wide variety of physiological signals. The MP36R is designed to evolve with your research—start with the base system, then expand by adding compatible:

SS#L Series Lead Sets
Transducers
Stimulation hardware
Gas analysis modules

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Simple, Streamlined Connections

Three types of input devices connect to the MP36R:

Electrodes – pick up electrical signals from the body
Transducers – convert physical signals into electrical data
I/O Devices – include pushbutton switches, headphones, and more

All sensors use Simple Sensor connectors, which:

Only plug in one way (no upside-down connections)
Prevent incorrect socket usage
Enhance reliability and ease of setup

Front Panel Connections

Channels 1–4: for electrodes, transducers, or pushbuttons

Back Panel Connections

Analog Out port (9-pin D-sub): for headphones or stimulation
Headphone jack (3.5 mm): stereo audio output
I/O Port (DB-25): connect digital I/O devices
Trigger port (BNC): receive trigger inputs
USB port: for PC/Mac connection
Power input, fuse holder, and on/off switch
Serial number label

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Signal Quality & Filtering

To ensure high-quality, low-noise recordings, the MP36R includes:

Fixed Low Pass Filter (~20 kHz): Reduces high-frequency noise and enables anti-aliasing for IIR digital filters
Fixed High Pass Filter (switchable): Compensates for DC offsets in biopotential and transducer signals

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Built-in Stimulation

The Analog Out port doubles as a low-voltage stimulator, allowing you to output stimulation signals directly to connected devices. This makes it easy to integrate stimulation protocols into your experiments without needing additional hardware.

Electrode Check Resistance Range:	0-1 MΩ (Vin+ and Vin- to GND)
Analog inputs:	4 isolated channels (front panel CH 1–CH 4)
Sample rate: Max:	4 CH @ 100K s/second Min: 1 sample/second
Trigger Input:	Analog CH1-CH4 or Digital D1-D8
Threshold:	Adjustable threshold level with Positive or Negative Trigger
A/D resolution:	24-bit (before digital filtering)
Signal to noise ratio:	> 89 dB min Tested at lowest Gain at 1'000 s/s with grounded front end
Voltage resolution:	Gain dependent: 2.38 microvolts /bit (Gain 5) to 0.024 nanovolts /bit (Gain 50'000)
Storage buffer:	512 K
Input voltage range:	Gain dependent: 400 microvolts to 4.0 Volts p-p
Input noise voltage:	9 nV rms /sqrt(Hz) and 0.1 uV rms noise (0.1 Hz to 35 Hz) - nominal
Input noise current:	100 fA rms /sqrt(Hz) and 10 pA p-p noise (0.1 Hz to 10 Hz) - nominal
Input protection:	± 1 mA/V current limited
Maximum input voltage:	4 V p-p (between Vin+ and Vin-)
Differential input impedance:	2 MΩ (between Vin+ and Vin-)
Software Filters:	Three programmable digital (IIR) filters; automatic or user-adjustable
Hardware Filters:	Fixed hardware low pass – 20 KHz Fixed hardware high pass – switchable DC; 0.05 Hz; 0.5 Hz; 5 Hz
Common mode input impedance:	(between Vin+/Vin- and GND) DC: 11 MΩ AC (50/60Hz): 1'000 MΩ
CMRR:	110 dB minimum at 50/60 Hz
Gain ranges:	5 – 50'000 (automatic preset or user adjustable)
Analog Output:	Number of channels: 1 D/A resolution: 16 bits Accuracy: ±0.01% of FSR Headphones Output impedance: 50 Ω Headphones Output voltage: -10 V to +10 V Headphones Output drive current: 5 mA max
Serial interface:	USB Type 2.0 high speed
Headphone:	Drives 16-32 Ω standard stereo headphones
I/O port:	8 TTL compatible inputs and 8 TTL compatible outputs
Trigger:	TTL compatible input and synchronization port – see External Trigger Inputs.
DC input:	Power input; requires 12 VDC @ 1 Amp. Use the AC300A 12 VDC @ 1.25 Amp power supply adapter to connect to any mains rated as 100-250 VAC @ 50/60 Hz; 40 VA
Fuse:	1.0 amp fast-blow fuse
Dimensions & Weight:	7 cm x 29 cm x 25 cm; 1.4 Kg
Operating Temperature Range:	0 – 70 deg C
Storage Temperature Range:	-10 – 70 deg C
Operating / Storage Humidity Range:	0 – 95% (non-condensing)
Operating / Storage Pressure Range:	0 – 300 kPA
Channel-to-Channel Latency: None:	Channels are sampled simultaneously

Important Note: This product is for research applications only. Not a medical device as defined in Regulation (EU) 2017/745 (EU MDR), Swiss Medical Devices Ordinance (MedDO, SR 812.213), or FDA 21 CFR Part 860. Not designed or intended to be used for diagnosis, treatment of disease or any other medical purposes.

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