USB8CH Spec Sheet
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Download PDF Product Flyer  ,
User Manual
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Product Description
The USB8CH is the 8 channel member of the USBxCH family of 24 bit
realtime continuous data acquisition system with an individual A/D per
channel architecture.
Suitable for sampling from DC to 10kHz, an on board 4 MB FIFO guards against any data loss even on heavily interrupted and multitasking computers. Sitting outside the PC for improved noise performance, the system communicates its acquired data to the computer via a standard USB port. All analog inputs are fully differential with amplitude ranges of +/- 4 volts.
Full featured acquisition and display programs like DVM and Scope are included with the system software, so you can be up and running immediately, easily controlling acquisition rates and continuously saving acquired data to disk. The pipelined architecture allows easy customization of the provided programs. For developing custom utilities, low level pipeline functions are supplied. Windows and Linux software with many examples is provided. Software drop-in replacement for USB4CH.
The bundled "in the box" system comes with the accessories you need to start acquiring data immediately. These include software, PDF User manual, 9 VDC power supply, 6' USB cable, analog input cable, and a desktop enclosure.
Specifications Table
For more detailed specifications, please see the User Manual.
| USB8CH Specs | ||
| Channels: | 8 | |
| Resolution: | Typical: 23 bits at 13 Hz, 21 bits at 130 Hz, 19 bits at 1.3 kHz | FAQ note |
| Sampling Rates: | Selectable from 3.3 Hz to 9.7 kHz, with response to DC | FAQ note |
| Analog Input Type: | Differential | FAQ note |
| Analog Input Voltage: | +/-4v | FAQ note |
| Analog Input Sensitivity: | 1 microvolt per count | FAQ note |
| Analog Input Impedance: | 51 Kohm factory default, 10 Mohm max | FAQ note |
| Analog Input Connector: | DB15 front panel 15 pin D-Shell | |
| A/D Converter: | TI ADS1255, 1 per channel | |
| A/D Type: | Sigma Delta | |
| Channel crosstalk: | Down more than 140 dB (24 bits) at 100 Hz | FAQ note |
| Common Mode Rejection: | 90 dB (15 bits) | |
| Digital Inputs: | 4 synchronously sampled digital inputs | FAQ note |
| Digital Outputs: | 4 programmable digital outputs | |
| Digital I/O Levels: | TTL/CMOS 3.3 volt | |
| Digital I/O Connector: | DB25 front panel 25 pin D-Shell | |
| PC Connection: | USB 1.1 | |
| Power Required, Voltage: | 8 to 24 VDC | |
| Power Required, Current: | 160 ma typical, 190 ma with USBGPS | |
| Data Buffer: | 4 MB DRAM FIFO | |
| Board Dimension: | 7.00" W x 7.00" D | |
| Enclosure Dimension: | 7.25" W x 7.50" D x 1.63" H | |
| Supported OS: | Win7/8 32/64 bit, Linux | |
| ROHS Compliance: | Compilant by exemption | FAQ note |
| Price: | $980 | |
Documents and Software
These documents represent the complete specs for this product.
They can also be found on our
Downloads page.
Note: BBB = Beagle Bone Black single board computer.
| USB8CH Documents & Software | ||||
| Category | Description | Rev | File | # bytes |
| Product Flyer | USB8CH specs | 2014/02/15 | flyusb8ch.pdf | 154,057 |
| User Manual | USBxCH user manual | 2015/12/01 | manusbxch.pdf | 1,589,352 |
| System Software | Windows 7/8/10 32+64 bit | 2022/03/25 | usbwin.zip | 23,666,633 |
| System Software | Linux 64 bit ( Ubuntu 18.04 LTS, kernel 4.15.0 ) | 2022/03/25 | usbl64.tar | 21,391,360 |
| System Software | ARM Linux BeagleBone Black Rev C ( Debian 7/8 ) | 2022/03/25 | usbbbb.tar | 16,496,640 |
Price Table
The following items may be purchased individually or at a discount as a bundled "in the box" system. When purchasing a USB8CH "in the box" system, the following are included:
| USB8CH In The Box | ||
| Item | Description | Price |
| USB8CH-BOARDONLY | 8 channel, 24 bit data acquisition board connects to PC USB port | $880 |
| USB8CH-CASE | Vinyl coated steel enclosure with rubber feet | $58 |
| CABLE-USB8CH-ANALOGIN-WIRE | Analog input cable, DB37 to 8 tinned wire pairs plus AGND | $30 |
| CABLE-USB-AB-6 | Six foot molded USB A male to B male USB cable | $8 |
| TRANS-SWITCHER-09V-DC | 9 vdc, 300 ma switching transformer, 110-220 vac input, US plug | $15 |
| Individual item subtotal = | $1001 | |
| "In the box" discount ( box contents photo ) | - $21 | |
| USB8CH-INTHEBOX | Final price (how to order) = | $980 |
Bonus Starter Kit
One starter kit included free with all first orders, additional kits must be purchased separately:
| USB8CH Starter Kit | ||
| Item | Description | Price |
| CABLE-USB8CH-ANALOGIN-ALLI |
Analog input cable, DB37 to 8 alligator pairs plus AGND | $60 |
| ACC-SOLDERCUP-37-25 | D-shell solder cups for custom connection to digital, analog inputs | $2 |
| USBXCH-CD | CD with software and PDF user manual | $1 |
| USB8CH-START-KIT | Individual item subtotal = | $63 |
| USB8CH-START-KIT-BONUS | Free with first time orders only ( free starter kit contents photo ) = | $0 |
Options
Some users may want to consider these additional options:
| USB8CH Options | ||
| Item | Description | Price |
| USBGPS | GPS antenna bundle for time stamping USB8CH acquired data | $125 |
| CABLE-USB8CH-ANALOGIN-ALLI |
Analog input cable, DB37 to 8 alligator pairs plus AGND | $60 |
| CABLE-DB25-MF-6 | Molded 25-pin D-shell cable for extending digital I/O | $8 |
| SUB-CABLE-USB-AB-3 | Substitute a 3 foot USB cable for the standard 6 foot one | $0 |
| USB8CH-CHANGE-GAIN | Change the gain from 1 on upto 8 USB8CH channels | $40 |
| USB8CH-CHANGE-INRANGE | Change the input range from +/- 4v on upto 8 USB8CH channels | $40 |