Measurement Computing PCI-DAS1200 - Manual (Page 18)

PCI-DAS1200 User's Guide Specifications
17
Analog output
Table 2. Analog output specifications
Parameter Specification
D/A type AD7847AR
Resolution 12 bits
Number of channels 2
Output ranges ±10 V, ±5 V, 0 to 5 V, 0 to 10 V
Each channel independently programmable.
D/A pacing Software
Data transfer Programmed I/O
Offset error ±600 µV max, all ranges (calibrated)
Gain error ±0.02% FSR max (calibrated)
Differential nonlinearity ±1 LSB max
Integral nonlinearity ±1 LSB max
Monotonicity 12 bits
D/A gain drift ±2 ppm/°C max
D/A bipolar offset drift ±5 ppm/°C max
D/A unipolar offset drift ±5 ppm/°C max
Throughput PC dependent
Settling time (to .01% of 10 V step) 4 µs typ
Slew rate 7 V/µS
Current drive ±5 mA min
Output short-circuit duration 25 mA indefinite
Output coupling DC
Amp output impedance 0.1 Ohms max
Miscellaneous Power up and reset, all DAC's cleared to 0 volts, ±200 mV
Digital input/output
Table 3. DIO specifications
Parameter Specification
Digital type 82C55A
Configuration 2 banks of 8, 2 banks of 4, programmable by bank as input or output
Number of I/O 24 (FIRSTPORTA 0 through FIRSTPORTC 7)
Output high 3.0 volts @ -2.5 mA min
Output low 0.4 volts @ 2.5 mA max
Input high 2.0 volts min, Vcc+0.5 volts absolute max
Input low 0.8 volts max, GND-0.5 volts absolute min
Power-up / reset state Input mode (high impedance)
Interrupts INTA# - mapped to IRQn via PCI BIOS at boot-time
Interrupt enable Programmable
Interrupt sources Residual counter, End-of-channel-scan, AD-FIFO-not-empty,
AD-FIFO-half-full