• Up to four 16-bit, 1 MS/s analog outputs
• 24 digital I/O lines
• Four 32-bit event counters
• Four timer outputs
• USB powered (no external power required)
16-bit resolution
• 1 MS/s sample rate
• Up to 64 single-ended analog inputs
• Includes USB cable and standoffs
• Small footprint for OEM and embedded applications
Thông số kỹ thuật
Analog Output (USB-2627/USB-2637 Only)
Number of channels: 4; leave unused analog output channels disconnected.
Resolution: 16 bits
Output ranges (calibrated): ±10 V
Output transient
Host computer is reset, powered on, suspended, or a reset command is
issued to the device (analog outputs default to 0 V)
Duration: 100 ms
Amplitude: 2 V p-p
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Duration: 100 ms
Amplitude: 5 V peak
Differential nonlinearity: ±0.25 LSB typ, ±1 LSB max
Output Current
XDACx pins: ±3.5 mA max
Output short-circuit protection
XDACx connected to AGND: Unlimited duration
Output coupling: DC
Power on and reset state, dacs cleared to zero-scale: 0 V, ±150 mV
Pacer source: Internal output scan clock and external output scan clock (XDPCR),
independent of external input scan clock (XAPCR)
Trigger sources: TTLTRIG (refer to the “External Trigger” specifications below)
Output update rate: 1 MS/s max; not affected by the number of scan channels
Settling time to rated accuracy, 10 V step: 2 µs
Slew rate: 20 V/µs
Throughput
Software paced: 33 S/s to 4,000 S/s typ, system-dependent
Hardware paced: 1 MS/s max, system-dependent