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6. Specifications
A/D Converter 12-Bit Version 16-Bit Version
Acquisition + Conversion 2 ms + 8 ms 2 ms + 8 ms
Monotonicity No missing codes No missing codes
Integral linearity error ± 1 LSB ± 3 LSB
Differential linearity error ± 1 LSB +3/-2 LSB
Full scale error ± 0.5 % ± 0.5 %
Aperture delay 40 ns 40 ns
Analog Input
Number of input channels 4 differential / 8 single-ended, expandable to 128
Input range ±10, ±5, ±2.5, ±1.25V (DAQP-208 and DAQP-308)
±10, ±1, ±0.1, ±0.01V (DAQP-208H)
Programmable gain 1, 2, 4, 8 (DAQP-208 and DAQP-308)
1, 10, 100, 1000 (DAQP-208H)
Maximum over-voltage ±30 V
Input impedance 100 MW (DC)
A/D Miscellaneous Specifications
Data FIFO depth 2048 samples
Scan list length 2048 entries
Scan speed 10 ms, 20 ms, 40 ms
Trigger source Internal (Software) / External (TTL, Analog)
Trigger mode Continuous / One-shot
Pre-trigger option Programmable, up to the data FIFO depth
TTL trigger 0.8 V (low) / 2.2 V (high), Rising / Falling edges
Analog trigger Threshold set in full A/D input range (± 10V)
Rising / Falling directions, 10 mV hysteresis
Sampling rate 0.006 Hz to 100 kHz (with internal clock source)
External clock rate DC - 5 MHz
D/A Converter
Resolution 12-bit
Relative Accuracy ± 1 LSB
Bipolar Zero Error ± 7 LSB max
Differential Nonlinearity ± 1 LSB max
Full scale error ± 7 LSB max
DAQP-208/208H/308 Users Manual 59