Amplifiers for the Teensy development boards.
-
R5.0 Some still to be developed amplifier based on TI TLV320ADC5140.
-
R4.2b
Similar to the R4.1 board, but using the secondary TDM of the
Teensy. Can be used as a standalone 8-channel
logger, or as an expansion of the R4.1 board, making it a 16 channel
recording unit: read more. -
R4.0
An eight-channel single-ended amplifier with analog-digital converter
based on TI PCM1865
together with CAN bus communication on an 80x80mm PCB. -
R3.0
A stackable two-channel differential amplifier with band-pass filter. -
R2.0 An improved two-channel differential amplifier with band-pass filter (never developed...).
-
R1.0
A two-channel differential amplifier with band-pass filter.
| Model | Channels | Reference | Vin | ADC | Amplifier | High-pass | Low-pass | Gains | Communication | Size (mm) | Comment |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R4.1b | 8 | single ended | 3.3 - 5.5V | TI PCM1865 | TI OPA1662 | 5Hz fixed | according to sampling rate | x1 - x100 | - | 136x46 | Teensy 4.1 TDM1 |
| R4.2b | 8 | single ended | 3.3 - 5.5V | TI PCM1865 | TI OPA1662 | 5Hz fixed | according to sampling rate | x1 - x100 | - | 105x46 | Teensy 4.1 TDM2 |
| R4.0 | 8 | single ended | 3.3 - 5.5V | TI PCM1865 | TI OPA1662 | 5Hz fixed | according to sampling rate | x1 - x100, x10 - x1000 | CAN | 80x80 | Teensy 4.1 TDM1 |
| R3.0 | 2 - 8 | differential | 3.3 - 5.5V | Teensy 3.5 | TI INA2321-EA | plug-in capacitors | plug-in resistances | plug-in resistances | - | 69x18 | stackable up to 8 channels |
| R1.0 | 2 | differential | 5V | Teensy 3.5 | AD8224HACPZ-WP | 0.1Hz, 100Hz, 300Hz switch | 10kHz, 33kHz switch | x5, x30, x180 switch | - | 94x35 |
The TeeRec library provides everything you need to program a recorder or logger.
-
16 channel logger: A 16-channel logger with environmental sensors for recording electric fish behaviors.
-
8-channel logger: A mini electrode-array for recording electric fish behaviors.
-
EOD-Logger: 2-channel logger for recording EODs of electric fish.
-
FishFinder: A replacement for the usual and horrible RadioShack/MP3 player combination for recording electric fish EODs in their natural habitats with lot's of additional features (display, online analysis, acoustiv feedabck, environmental parameters). analysis, environmental parameters).
