MCC USB-1808X: High-Speed, High-Precision, Simultaneous USB DAQ Device - Datasheet

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[e-mail] mccdaq.com
USB-1808 Series
May 2019. Rev 5
DS-USB-1808-Series © Measurement Computing Corporation
Ordering
External Clock Input/Output
Terminal names: ICLKI, ICLKO, OCLKI, OCLKO
Terminal types
xCLKI: Input, active on rising edge
xCLKO: Output, power on default is 0 V, active on rising edge
Terminal descriptions
xCLKI: Receives sampling clock from external source
xCLKO: Outputs the internal input scan or internal output scan clock, or the
pulse generated from xCLKI when in external clock mode.
Input clock rate
USB-1808: 125 kHz
USB-1808X: 500 kHz
Clock pulse width
xCLKI: 400 ns min
xCLKO: 400 ns min
Input type : Schmitt trigger, 33 Ω series resistor, 47 kΩ pull-down to ground
Schmitt trigger hysteresis: 0.4 V to 1.2 V
Input high voltage: 2.2 V min, 5.5 V absolute max
Input low voltage: 1.5 V max, –0.5 V absolute min, 0 V recommended min
Output high voltage: 4.4 V min (IOH = –50 µA); 3.76 V min (IOH = –2.5 mA)
Output low voltage: 0.1 V max (IOL = 50 µA); 0.44 V max (IOL = 2.5 mA)
Output current: ±2.5 mA max
External Trigger
Trigger source: ITRIG for inputs, OTRIG for outputs
Trigger mode: Software programmable for edge or level sensitive, rising or falling
edge, high or low level. Power on default is edge sensitive, rising edge.
Trigger latency: 1 µs + 1 clock cycle max
Trigger pulse width: 100 ns min
Input type: Schmitt trigger, 33 Ω series resistor and 49.9 kΩ pull-down to ground
Schmitt trigger hysteresis: 0.4 V to 1.2 V
Input high voltage: 2.2 V min, 5.5 V absolute max
Input low voltage: 1.5 V max, –0.5 V absolute min, 0 V recommended min
Pattern Trigger
Trigger source: DIO0 – DIO3
Trigger types: Above pattern, Below pattern, Equal pattern, or Not equal pattern
Trigger stability: Digital port must be stable for 50 ns to be recognized as a pattern
Trigger bit width: Up to 4, adjustable through bitmask
Trigger latency: Up to 1 scan period
Memory
Data FIFO: 4 kS analog input/2 kS analog output
Non-volatile memory: 32 KB (28 KB firmware storage, 4 KB calibration/user data)
Power
Supply current (quiescent current): 305 mA
This is the total quiescent current requirement for the device that includes up
to 10 mA for the status LED. This does not include any potential loading of
the digital I/O bits, +VO terminal, or the AOUTx outputs.
+VO user output voltage range: 4.5 V min to 5.25 V max
The +4.5 V min limit includes the +VO 10 mA load, it does not include any
potential loading of the digital I/O bits or the AOUTx outputs
+VO user output current: 10 mA max
USB
USB device type: USB 2.0 (high-speed)
Device compatibility: USB 1.1, USB 2.0, USB 3.0
USB cable type: A-B cable, UL type AWM 2725 or equivalent
(Min 24 AWG VBUS/GND, min 28 AWG D+/D–)
USB cable length: 3 m (9.84 ft) max
Environmental
Operating temperature range: 0 °C to 55 °C max
Storage temperature range: –40 °C to 85 °C max
Humidity: 0% to 90% non-condensing max
Mechanical
Signal I/O Connector
Standard: 2 banks of screw-terminals (wire gauge range 16 AWG to 30 AWG)
OEM: Two 1 × 28 pin 0.1 in. pitch headers
Dimensions (L × W × H)
Standard: 127 × 89.9 × 35.6 mm (5.00 × 3.53 × 1.40 in.)
OEM: 119.38 × 86.36 × 1.57 (4.7 × 3.4 × 0.062 in.)
User connection length: 3 m (9.84 ft) max
Order Information
Hardware
Part No. Description
USB-1808 18-bit, eight-channel, 50 kS/s per channel
simultaneous-sampling DAQ device with two
analog outputs, four digital I/O lines, two 32-bit
counter inputs, two quadrature encoder inputs,
and two timer outputs. Includes a USB cable.
USB-1808X 18-bit, eight-channel, 200 kS/s per channel
simultaneous-sampling DAQ device with two
analog outputs, four digital I/O lines, two 32-bit
counter inputs, two quadrature encoder inputs,
and two timer outputs. Includes a USB cable.
USB-1808-OEM Board-only 18-bit, eight-channel, 50 kS/s per
channel simultaneous-sampling DAQ device with
two analog outputs, four digital I/O lines, two
32-bit counter inputs, two quadrature encoder
inputs, and two timer outputs.
USB-1808X-OEM Board-only 18-bit, eight-channel, 200 kS/s per
channel simultaneous-sampling DAQ device with
two analog outputs, four digital I/O lines, two
32-bit counter inputs, two quadrature encoder
inputs, and two timer outputs.
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