USB-1608G USB DAQ with 16 single-ended or 8 differential analog inputs,250 Ks/s

Description

USB DAQ with 16 single-ended or 8 differential analog inputs, 16 bits of resolution, Eight bidirectional digital I/O lines are individually configurable, two 32-bit counter inputs, one timer output, simpling rate of 250 Ks/s
The USB-1608G Series of high-speed multifunction USB data acquisition (DAQ) devices are ideal for low to medium channel count applications, and provide analog along with digital and counter/timer functions. Up to two analog outputs are available. OEM versions are available for embedded applications.
The USB-1608G is powered by the +5 volt USB supply from your computer; no external power is required. A USB cable is shipped with the device. The USB-1608G device is compatible with both USB 1.1 and USB 2.0 ports. The speed of the device may be limited when using a USB 1.1 port due to the difference in transfer rates on the USB 1.1 versions of the protocol (low-speed and full-speed).
The USB-1608G is a USB 2.0 high-speed device that provides the following features:
16 single-ended (SE) or eight differential (DIFF) analog input channels
Eight individually configurable digital I/O channels
Two counter channels (32-bit) that count TTL pulses
One timer output channel (32-bit)
Screw terminals for field wiring connections
SPECIFICATIONS
Parameter
Condition
Specification
A/D converter type
Successive approximation
ADC resolution
16 bits
Number of channels
8 differential, 16 single-ended Software-selectable
Input voltage range
±10 V, ±5 V, ±2 V, ±1 V Software-selectable per channel
Absolute max input voltage
CHx relative to AGND
±25 V max (power on)
±15 V max (power off)
Input impedance
1 G? (power on)
820 O (power off)
Input bias current
±10 nA
Input bandwidth
All input ranges, small signal (–3 dB)
750 kHz
Input capacitance
60 pf
Max working voltage (signal + common mode)
±10V range
±10.2 V max relative to AGND
±5V range
±10.2 V max relative to AGND
±2V range
±9.5 V max relative to AGND
±1V range
±9.0 V max relative to AGND
Common mode rejection ratio
(fIN = 60 Hz, all input ranges)
86 dB
Crosstalk
Adjacent differential mode channels, DC to 100 kHz
–75 dB
Input coupling
DC
Sampling rate
0.0149 Hz to 250 kHz; software-selectable
Trigger source
TRIG
Sample clock source
Internal A/D clock or external A/D clock (AICKI pin)
Burst mode
4 µs
Software-selectable using the internal A/D clock; always enabled when using the external clock (AICKI pin).
Throughput
Software paced
33 to 4000 S/s typ, system dependent
Hardware paced
250 kS/s max
Channel gain queue
Up to 16 elements
Software-selectable range for each channel
Warm-up time
15 minutes min
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