The analog input module records voltage waveforms from 8 input channels, and sends voltage threshold crossing events to the Bpod state machine.

Hardware Specs (v1):

• • Arduino-compatible 180MHz ARM Cortex M4 processor (Teensy 3.6)

  • Integrated analog to digital (ADC) - Analog Devices AD7327 

  • Voltage precision: 12-bit

  • 4  single-ended input range settings: -10V:10V, -5V:5V, -2.5V:2.5V, 0V:10V

  • 8MB/s USB data transfer

  • 16GB microSD memory for logging waveform data

  • Max sampling rate: 10kHz

  • Configurable voltage thresholds for generating behavior events, to control the Bpod State Machine.

• Dedicated port to stream analog data directly to the analog output module (for closed loop applications)

Hardware Specs (v2):

• • Arduino-compatible 600MHz ARM Cortex M7 processor (Teensy 4.1)

  • Highly integrated analog to digital (ADC) - Analog Devices AD7606C

  • Voltage precision: 16-bit

  • 7 single-ended input range settings: -12.5V:12.5V,-10V:10V, -6.5V:6.5V, -5V:5V, -2.5V:2.5V, 0V:5V, 0V:10V

  • 8MB/s USB data transfer

  • 16GB microSD memory for logging waveform data

  • Max sampling rate: 50kHz

  • Configurable voltage thresholds for generating behavior events, to control the Bpod State Machine.

• Dedicated port to stream analog data directly to the analog output module (for closed loop applications)

• Galvanic isolation divides analog interface from USB and MCU

• Anti-Alias filtering and oversampling on-chip

• True-differential mode selectable per-channel, w/ certain voltage ranges

• 5V reference source included to simplify connection of resistive sensors