Measurement-computing CIO-DDA06/JR Manual de usuario descargar pdf (Pagina 14)

Chapter 4

Specifications

Typical for 25 °C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Analog output

Table 1. Analog output specifications

D/A type AD7237KN

Resolution 12 bits

Number of channels 6 max, 2 installed

Voltage ranges ±5

Offset error ±3 LSB max

Gain error ±5 LSB max

Differential nonlinearity ±0.9 LSB max

Integral nonlinearity ±0.5 LSB

Monotonicity guaranteed

Gain drift ±25 ppm/°C

Settling time (10V step to .01%) 10 µs max

Slew rate 3 V/µs

Current drive ±5 mA min

Output short-circuit current 80 mA typ

D/A pacing Software paced

Data transfer Programmed I/O

Throughput PC dependent

Miscellaneous

 Double buffered output latches

 Update DACs individually or simultaneously (jumper selectable)

Digital input / output

Table 2. DIO specifications

Digital type 8255 emulation

Output 74S244

Input 74LS373

Number of channels 24 I/O

Configuration 2 banks of 8, 2 banks of 4, programmable by bank as input or output

Output high 2.4 volts min @ –15 mA

Output low 0.5 volts max @ 64 mA

Input high 2.0 volts min, 7 volts absolute max

Input low 0.8 volts max, –0.5 volts absolute min

Power-up / reset state Input mode (high impedance)

1 2 ... 9 10 11 12 13 14 15 16 17

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Measurement-computing CIO-DDA06/JR Manual de usuario Pagina 14