The USB-2600 Series: High-Speed, Multifunction Data Acquisition

The USB-2600 Series offers high-speed, multifunction data acquisition in a low-cost, board-only design. Each board offers voltage input, digital trigger input, counter input, timer output, digital I/O, and clock input. Analog output is also available on the USB-2627 and USB-2637.

Analog Input

16-bit, 1 MS/s ADC with Multiple Analog Inputs

Each USB-2600 Series board has a 16-bit, 1 MS/s ADC coupled with 16 SE analog inputs (USB-2623 and USB-2627), 64 SE analog inputs (USB-2633 and USB-2637). The input range is fixed at ±10 V.

Analog Output (USB-2627/USB-2637)

Four 16-bit, 1 MS/s Analog Output Channels

The four 16-bit, 1 MS/s analog output channels have an output range of ±10 V. The maximum rate at which analog outputs update depends on several factors, including the speed of the USB port. Típicamente, with the A/D operating at the full 1 MS/s rate, each analog output updates continuously from computer memory at 1 MS/s regardless of the number of channels in a scan.

Digital I/O

24 TTL-Level Digital I/O Lines

El 24 TTL-level digital I/O lines are software selectable for input or output. The typical maximum transfer rate (system paced, asynchronous) es 4,000 8-bit port or single-bit reads/writes per second.

Pull-Up/Down Configuration

Each board has an onboard jumper for configuring the digital I/O lines for pullup or pull-down (default).

Trigger Input

External Digital Trigger Input

An external digital trigger input is software selectable for edge sensitive or level sensitive mode.

Counter Input

Four 32-bit Counters

Four 32-bit counters are included in USB-2600 Series devices. Each counter accepts frequency inputs up to 20 megahercio.

Timer Output

Four PWM Timer Outputs

Four pulse width modulation (PWM) timer outputs can generate a square wave with a programmable frequency in the range of 0.015 Hz to 32 megahercio.

External Clock I/O

External Clock Input for Analog Inputs and Outputs

One external clock input is provided for pacing analog inputs. The USB-2627 and USB-2637 also have an external clock input for pacing analog outputs.

High-Speed Data Acquisition PCB Assembly

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