Measurement Computing PCI-DAS6071 - Manual (Page 41)

PCI-DAS6071 User's Guide Specifications
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Analog trigger
Table 16. Analog trigger specifications
Parameter Specification
Analog trigger sources
Software selectable External: ATRIG input
CH0 IN through CH63 IN, first channel in scan
Analog trigger levels ATRIG input: ±10 V
CH0 IN through CH63 IN: ± Full-scale, range dependent
Analog trigger modes External analog: Software-configurable for:
 Positive or Negative slope
Analog gate modes External analog: Software-configurable for:
 Above or below reference
 Positive or negative hysteresis
 In or out of window
Resolution 8-bits, 1-in-256
Accuracy ±5% Full-scale range max
Bandwidth (–3 dB) ATRIG input: 1.3 MHz
CH0 IN through CH63 IN: 2.0 MHz
Analog I/O calibration
Table 17. Analog I/O calibration specifications
Parameter Specification
Recommended warm-up time 15 minutes
Calibration Auto-calibration, calibration factors for each range stored on board in non-
volatile RAM.
Onboard calibration reference DC Level: 5.000 V± 2.5 mv. Actual measured values stored in EEPROM.
Tempco: 5ppm/°C max, 2 ppm/°C typ
Long-term stability: 20 ppm,
T = 1000 hrs, non-cumulative
Calibration interval 1 year
Digital I/O
Table 18. Digital I/O specifications
Parameter Specification
Digital type Discrete, 5V/TTL compatible
Number of I/O 8
Configuration 8 bits, independently programmable for input or output. All pins pulled up to
+5 V via 47 K resistors (default). Positions available for pull-down to ground.
Hardware selectable via solder gap.
Input high voltage 2.0 V min, 7.0 V absolute max
Input low voltage 0.8 V max, –0.5 V absolute min
Output high voltage
(IOH = –32 mA) 3.80 V min, 4.20 V typ
Output low voltage
(IOL = 32 mA) 0.55 V max, 0.22 V typ
Data transfer Programmed I/O
Power-up / reset state Input mode (high impedance)