Dataq DI-725/E, User Manual

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DI–720/DI–722/DI–730 Series User Manual
Specifications
4
Maximum analog measurement range (software selectable per channel):
DI-720 Series and DI-722/DI-730 gen-
eral purpose channels ±10V full scale at a gain of 1
±5V full scale at a gain of 2
±2.5V full scale at a gain of 4
±1.25V full scale at a gain of 8
DI-722 Series Amplified ±20 V full scale at a gain of 1
±10 V full scale at a gain of 2
±5 V full scale at a gain of 4
±2.5 V full scale at a gain of 8
DI-730 Series ±10mV full scale
±100mV full scale
±1V full scale
±10V full scale
±100V full scale
±1000V full scale
Maximum Input without Damage (either input to ground):
DI-720: ±30VDC or Peak AC
DI-722: 120V RMS
DI-730: ±1500VDC or Peak AC (8 high voltage channels only)
Gain error: 1 bit max @ 1kHz sample rate
Input offset voltage: 1 bit max @ 1kHz sample rate
Input settling time: 4µs to 0.01% at all gains
Input impedance: DI-720: 1 M
Ω
resistor tied to GND on the input channel
DI-722: 1 M
Ω
DI-730: 10 M
Ω
Maximum jitter between synchronized units: 5 microseconds
Analog Outputs
Number of channels: DI-720: Two buffered analog outputs
DI-722: None
DI-730: One analog output
Resolution: 12-bit; 1 part in 4,096 @ 250kHz
Output voltage range: ±10V full scale
Output impedance: 0.1
Ω
- output current should not exceed 1mA (10K
Ω
load or lighter)
Maximum Sample rate (samples/second):
(software selectable per channel) standard port: 40,000
bi-directional port: 80,000
EPP: 150,000
Output offset voltage: 1 bit max @ 1kHz sample rate
Digital Input/Output (DI-720 Series Only)
Capacity: 8 input and 8 output
Compatibility: TTL compatible
Max source current: 0.4mA @ 2.4V
Max sink current: 8mA @ 0.5V
Digital input termination: 4.7k
Ω
pull-up to +5VDC