All of these devices offer four differential (DIFF) or eight single-ended (SE) analog inputs, two analog outputs, 16 digital I/O channels, and one counter input.
Everything you need to begin acquiring, viewing, and storing data is included with these devices, including comprehensive software support.
Analog Input
USB-1208LS/1208FS-Plus: These devices provide eight, 11-bit SE analog inputs or four, 12-bit DIFF analog inputs.
USB-1408FS-Plus: This device provides eight, 13-bit SE analog inputs or four, 14-bit DIFF analog inputs.
All of these devices support software-selectable ranges that provide inputs from ±1 V to ±20 V in a DIFF configuration, and ±10 V in a SE configuration.
Sampling Rate
USB-1208LS: When scanning continuously to computer memory (hardware-paced mode), the USB-1208LS can sample at a maximum of 1.2 kS/s. Burst mode into the 4 kS FIFO is also available at rates up to 8 kS/s.
USB-1208FS-Plus and USB-1408FS-Plus: When scanning continuously to computer memory (hardware-paced mode), the USB-1208FS-Plus can sample at a maximum of 50 kS/s, and the USB-1408FS-Plus can sample at a maximum of 48 kS/s.
Channel-Gain Queue
The channel-gain queue feature lets you configure a list of channels and gains for each scan. Each channel can have a different gain setting. The gain settings are stored in a channel-gain queue list that is written to local memory on the device.
The USB-1208LS channel-gain queue list can contain up to eight channels in SE mode and up to four channels in DIFF mode. The channels can be listed in any order.
The USB-1208FS-Plus and USB-1408FS-Plus channel-gain queue can contain up to eight unique channels in SE mode and up to four unique channels in DIFF mode. The channels can be non-consecutive, but must be listed in increasing order.
Analog Output
For all devices, the maximum update rate for the analog outputs depends on several factors, including the speed of your USB port.
USB-1208LS: This device offers two 10-bit analog outputs with a range of 0 V to 5 V.
One analog output updates at a maximum rate of 100 S/s; two analog outputs update at a maximum rate 50 S/s each. The USB-1208LS updates in software-paced mode only.
USB-1208FS-Plus and USB-USB-1408FS-Plus: Both devices offer two 12-bit analog outputs with a range of 0 V to 5 V.
When updating continuously from computer memory (hardware-paced mode), the analog outputs update at a maximum rate of 50 kS/s per channel.
Digital I/O
All devices provide 16 TTL-level digital I/O lines. Digital I/O can be programmed on each 8-bit port (Port A and Port B) for either input (default) or output.
USB-1208FS-Plus and USB-1408FS-Plus: Port B0 through Port B7 are high-current drive (24 mA) digital I/O connections.
Event Counter Input
Each device supports one 32-bit TTL-level counter that accepts inputs up to 1 MHz.
4 Products
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The USB-1208FS-Plus offers four differential (DIFF) or eight single-ended (SE) analog inputs, two 12-bit analog output channels, 16 DIO channels, and one event counter.
USB-based multifunction DAQ board with 8 SE/4 DIFF analog inputs, up to 12-bit resolution, 50 kS/s, 2 analog outputs, and 16 digital I/O
USB-based multifunction DAQ device with 8 SE/4 DIFF analog inputs, up to 14-bit resolution, 48 kS/s, 2 analog outputs, and 16 digital I/O.
USB-based multifunction DAQ board with 8 SE/4 DIFF analog inputs, up to 14-bit resolution, 48 kS/s, 2 analog outputs, and 16 digital I/O