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The PCI-821L/H is a high performance, multifunction board for PC/AT compatible computers. The PCI-821L provides low gain (1, 2, 4, 8) and PCI-821H supports high gain (1, 10, 100, 1000). The PCI-821L/H contains 12-bit ADC with up to 16 single-ended or 8 differential analog input channels. It also has a 12-bit DAC voltage outputs and 16 channels of TTL-compatible digital input and digital output, respectively. The maximum sampling rate of A/D converter is about 45K.sample/sec.
| Analog Input Specifications | |
| Channels | 16 single-ended or 8 differential |
| Input range: | software programmable |
| PIO-821L: bipolar: | ±5V, ±2.5V, ±1.25V, ±0.625V |
| PIO-821H: bipolar: | ±5V, ±0.5V, ±0.05V, ± 0.005V |
| Input current: | 250nA max (125nA typical) at 25°C. |
| On chip | sample and hold |
| Over voltage: | continuous single channel to 70Vp-p |
| Input impedance: | 1010 W // 6pF |
| Conversion time: | 8 microseconds |
| Accuracy: | ±1-bit |
| Resolution: | 12-bit |
| Input type: | Single-ended, 8 differential by jumper(jp4) selected |
| Analog Output Specifications | |
| Channels | 1 independent |
| Linearity | ±1/2-bit |
| Output range | 0 ~ 5V or 0 ~10V |
| Jumper selected | by Jumper (JP2) |
| May be used | with other AC or DC |
| Reference input Maximum output limit | ± 10V |
| Output drive | ± 5mA |
| Settling time | 0.6 microseconds to 0.01% for full scale step |
| Digital I/O | |
Inputs |
16-channel ; TTL levels |
| Outputs | 16-channel ; TTL levels |
| Timer/Counter | |
| Internal pacer timer | 16-bit , 8MHz input |
| External pacer timer | 16-bit , 8MHz input |
| Machine independent timer | 16-bit , 8MHz input |
| Environmental | |
| Power Requirements | +5V @ 960 mA (max) |
| Operating temperature | 0°C ~ +50°C |
| Storage temperature | -20°C to 70°C |
| Humidity | 0 to 90% non-condensing |
| Dimensions | 165 mm x 105mm |
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