Measurement Computing PCI-DAS6013 - Manual (Page 31)

31
Chapter 5
Specifications
Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.
Analog input
A/D converter Successive approximation type, min 200 kS/s conversion rate.
Resolution 16 bits, 1-in-65536
Number of channels 16 single-ended / 8 differential, software selectable
Input ranges ±10 V, ±5 V, ±500 mV, ±50 mV, software selectable
A/D pacing Internal counter – ASIC. Software selectable time base:
 Internal 40 MHz, 50 ppm stability
 External source via AUXIN<5:0>, software selectable.
External convert strobe: A/D CONVERT
Software paced
Burst mode Software selectable option, burst rate = 5 µs.
A/D gate sources External digital: A/D GATE
A/D gating modes External digital: Programmable, active high or active low, level or edge
A/D trigger sources External digital: A/D START TRIGGER
A/D STOP TRIGGER
A/D triggering modes External digital: Software-configurable for rising or falling edge.
Pre-/post-trigger: Unlimited number of pre-trigger samples, 16 Meg post-trigger samples.
ADC pacer out Available at user connector: A/D PACER OUT
RAM buffer size 8 K samples
Data transfer DMA
Programmed I/O
DMA modes Demand or non-demand using scatter gather.
Configuration memory
(see Note 1)
Up to 8 K elements in the queue. Programmable channel, gain, and offset.
Streaming-to-disk rate 200 kS/s, system dependent
Note 1: Mixing high gains (±500 mV, ±50 mV) with low gains (±10 V, ±5 V) within the channel-gain
queue is not supported.
Accuracy
200 kS/s sampling rate, single channel operation and a 15-minute warm-up. Accuracies listed are for
measurements made following an internal calibration. They are valid for operational temperatures within ±1 °C
of internal calibration temperature and ±10 °C of factory calibration temperature. Calibrator test source high
side tied to channel 0 high and low side tied to channel 0 low. Low-level ground is tied to channel 0 low at the
user connector.
Table 1. Absolute accuracy specifications
Range Absolute Accuracy
±10 V ±29.4 LSB
±5 V ±13.1 LSB
±500 mV ±30.9 LSB
±50 mV ±45.2 LSB