USB-1608G Series

Measurement Computing's USB-1608G Series devices are low-cost, high-speed, analog and digital I/O USB devices. All of these devices offer up to eight DIFF or 16 SE analog inputs, up to eight digital I/O channels, two counter inputs, and one timer output. The USB-1608GX-2AO offers two, 16-bit analog output channels with DAC rates up to 500 kS/s. Everything you need to begin acquiring, viewing, and storing data is included with each USB-1608G Series device, including comprehensive software support.

Analog Input: USB-1608G Series devices provide 16-bit analog inputs that are software-selectable as 16 SE or eight DIFF inputs. These devices also support software-selectable input ranges of ±10 V, ±5 V, ±2 V, and ±1 V.

Analog Output (USB-1608GX-2AO only): The USB-1608GX-2AO has two 16-bit analog outputs. Both outputs can be updated at a rate of 250 kS/s per channel; one output can be updated at a rate of 500 kS/s. The output range is fixed at ±10 V. The outputs default to 0 V when the host PC is shut down or suspended, or when a reset command is issued to the device.

Trigger Input: USB-1608G Series devices have an external digital trigger input. The trigger mode is software-selectable for edge-or level-sensitive mode. You can configure edge-sensitive mode for either rising or falling edge. In level-sensitive mode, you can configure for either high or low level. The default setting at power up is edge-sensitive, rising edge.

Retrigger Mode: In retrigger mode, you can set up repetitive analog input trigger events. The trigger is automatically re-armed after it is activated. Use software to set the A/D trigger count (the number of samples you want per trigger).

Digital I/O: Eight bidirectional digital I/O connections are included with USB-1608G Series devices. Each digital channel is individually configurable for input or output. The digital I/O terminals can detect the state of any TTL-level input. You can configure for pull-up (+5 V) or pull-down (0 V) through a jumper.

Counter Input: Each USB-1608G Series device includes two 32-bit event counters for counting TTL pulses. The counters accept frequency inputs of up to 20 MHz.

Timer Output: USB-1608G Series devices have a PWM timer output that can generate a pulse output with a programmable frequency in the range of 0.0149 Hz to 32 MHz. The timer output parameters are software-selectable.

External Clock I/O: USB-1608G Series devices provide one external clock input and one external clock output for the analog inputs. The USB-1608GX-2AO also has one external clock input and one external clock output for the analog outputs.