MCC USB-1608G Series High-Speed Multifunction USB DAQ (USB-1608GX) - Datasheet

Measurement Computing [phone]
5
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USB-1608G Series
Specifications
Calibrated Absolute Accuracy
Range: ±10 V
Absolute accuracy ( ± LSB): 16.0
Calibrated Absolute Accuracy Components
Range: ±10 V
% of reading: ±0.0183
Offset (±mV): 1.831
Offset Tempco (µV/°C): 12.7
Gain Tempco (ppm of range/°C): 13
Analog Output Relative Accuracy
Range: ±10 V
Relative accuracy (INL): 4.0 typ
Analog Input/Output Calibration
Recommended Warm-up Time: 15 minutes min
Calibration method: Self-calibration (firmware)
Calibration interval: 1 year (factory calibration)
AI calibration reference
+5 V, ±2.5 mV max (actual measured values stored in EEPROM)
Tempco: 5 ppm/°C max
Long term stability: 15 ppm/1000 hours
AOUTx calibration procedure (USB-1608GX-2AO only)
The AOUTx terminals are internally routed to the AI circuit. For best results,
disconnect AOUTx connections at the terminal block before calibrating.
Digital I/O
Digital type: CMOS
Number of I/O: 8
Configuration: Bit-configurable as input (power on default) or output
Pull-up configuration: 47 kΩ resistors configurable as pull-up/down (default)
via internal jumper (W1).
Digital I/O transfer rate (system-paced): 33 to 8000 port reads/writes or single
bit reads/writes per second typ, system dependent.
Input high voltage: 2.0 V min, 5.5 V absolute max
Input low voltage: 0.8 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: TRIG input
Trigger mode: Software configurable 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
External Clock I/O
Terminal names
AICKI, AICKO
USB-1608GX-2AO: AICKI, AICKO AOCKI, AOCKO
Terminal types
AxCKI: Input, active on rising edge
AxCKO: Output, power on default is 0 V, active on rising edge
Terminal descriptions
AxCKI: Receives sampling clock from external source
AxCKO: Outputs the internal sampling clock (D/A or A/D clock) or the pulse
generated from AxCKI when in external clock mode.
Input clock rate
USB-1608G: 250 kHz max
USB-1608GX/1608GX-2AO: 500 kHz max
Clock pulse width
AxCKI: 400 ns min
AxCKO: 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
Counter Input
Terminal names: CTR0, CTR1
Number of channels: 2 channels
Resolution: 32-bit
Counter type: Event counter
Input type: Schmitt trigger, 33 Ω series resistor, 47 kΩ pull-down to ground
Input source:
CTR0 (terminal 52)
CTR1 (terminal 51)
Counter read/Writes rates (Software-paced) : 33 to 8000 reads/writes per second
typ, system dependent
Input high voltage: 2.2 V min, 5.5 V max
Input low voltage: 1.5 V max, –0.5 V min
Schmitt trigger hysteresis: 0.4 V min, 1.2 V max
Input frequency: 20 MHz, max
High pulse width: 25 ns, min
Low pulse width: 25 ns, min
Timer Output
Timer terminal name: TMR
Timer type: PWM output with count, period, delay, and pulse width registers
Output value: Idle low with pulses high, software-selectable output invert
Internal clock frequency: 64 MHz
Register widths: 32-bit
High pulse width: 15.625 ns min
Low pulse width: 15.625 ns 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
Memory
Data FIFO:
USB-1608G/1608GX: 4 kS analog input
USB-1608GX-2AO: 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
The total quiescent current requirement includes up to 10 mA for the Sta-
tus LED; this does not include any potential loading of the digital I/O bits,
+5 V terminal, or the AOUTx outputs (USB-1608GX-2AO only).
Quiescent Current
USB-1608G/1608GX: 230 mA
USB-1608GX-2AO: 260 mA
+5 V user output voltage range (available at Terminal 43): 4.5 V min to 5.25 V max
+5 V user output current (available at terminal 43): 10 mA 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
-OEM models: Two 28-pin, 0.1 in. pitch headers
All other devices: 2 banks of screw-terminal blocks (wire gauge range
16 AWG to 30 AWG)
Dimensions (L × W × H):
Standard version: 127 × 89.9 × 35.6 mm (5.00 × 3.53 × 1.40 in.)
OEM version: 121.92 × 86.36 × 15.24 (4.80 × 3.40 × 0.60 in.)