Measurement-computing CIO-DAS08-AOH Instrukcja Użytkownika Pobierz pdf (Strona 24)

Analog Output:

D/A converter type AD7237 dual DAC

Resolution 12 bits

Number of channels 2

Output Ranges ±10V, ±5V, ±2.5V, ±1.67V, 0 to 10V, 0 to 5V, 0 to 2.5V, 0 to 1.67V Each channel

independently switch selectable

Offset error ±1 LSB max (adjustable to 0 with potentiometer)

Gain error ±1 LSB max (adjustable to 0 with potentiometer)

Differential nonlinearity ±0.9 LSB max

Integral nonlinearity ±1 LSB max

Monotonicity Guaranteed monotonic to 12 bits over temperature

D/A Gain drift ±3 ppm/°C max

D/A Bipolar offset drift ±30 ppm/°C max

D/A Unipolar offset drift ±50 ppm/°C max

D/A pacing Software paced

D/A trigger modes Software

Data transfer Programmed I/O

Settling time (D/A converter)

(full scale step to ±0.5 LSB) 8 µs max

Slew Rate (OP07) 0.3V/µs

Current Drive ±5 mA

Output short-circuit duration indefinite

Output coupling DC

Output impedance 0.1 Ohms max

Miscellaneous Double buffered output latches

Update DACs individually or simultaneously (jumper selectable)

Digital Input / Output

Digital Type (main connector)

Output: 74LS273

Input: 74LS244

Configuration 4 fixed output bits, 3 fixed input bits

Number of channels 4 out, 3 in

Output High 2.7 volts min @ −0.4 mA

Output Low 0.4 volts max @ 8 mA

Input High 2.0 volts min, 7 volts absolute max

Input Low 0.8 volts max, −0.5 volts absolute min

Output power-up / reset state

Digital Type (Digital I/O connector) 82C55

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

Number of channels 24 I/O

Output High 3.0 volts min @ −2.5mA

Output Low 0.4 volts max @ 2.5mA

Input High 2.0 volts min, 5.5 volts absolute max

Input Low 0.8 volts max, −0.5 volts absolute min

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

Interrupts 2 through 7, jumper-selectable

Interrupt enable Programmable

Interrupt sources External (Interrupt In), rising edge

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 30 31 32

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