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AP220: 12-Bit DAC Module
Brand: AcromagThe AP220 12-bit D/A converter module outputs analog voltage signals to drive up to 16 devices. When used with a carrier that holds two AcroPack AP modules, up to 32 voltage outputs can be obtained from a single card cage slot.
Each output channel has its own 12-bit D/A converter (DAC). Individual DACs are faster, and they eliminate glitches typically caused by the re-acquisition process of sample and holds found on multiplexed output boards.
Individual channels also have double-buffered data latches. You can select to update each output when it is written to, or to update all outputs simultaneously. Simultaneous outputs better simulate linear movements in motion processes.
Features- PCI Express Generation 1 interface
- Independent 12-bit D/A converters per channel
- Mix and match countless I/O combinations in a single slot.
- Sample software and diagnostics
- Double-buffered DACs
- Built-in calibration coefficients
- Independent selectable output ranges
- Outputs reset to 0 volts
- Internally stored calibration coefficients ensure accuracy.
- Software provides easy selection of transparent or simultaneous output modes.
- Double-buffered DACs allow new data to be written to each channel before the simultaneous trigger updates the outputs.
- Alarm function
- Solid-down connector I/O interface
- Wide temperature range
- PCIe, VPX and XMC carriers
- Linux®, Windows®, and VxWorks® support
Specifications
Brand
Output Configuration
- 16 non-Isolated bipolar/unipolar differential outputs. Each channel is paired with a signal return reference.
D/A Resolution
- 12 bits.
Output Ranges
- Unipolar: 0 V to 5 V, 0 V to 10 V.
- BiPolar: -2.5 V to 7.5 V, ± -3 V, ± 5 V, ± 10 V.
Settling Time
- 9 µS - 20 V step to 1 LSB at 16-bit resolution.
- 7.5 µS - 10 V step to 1 LSB at 16-bit resolution.
Maximum Throughput Rate
- Outputs can be updated simultaneously or individually.
- One channel: 7.5 μS/conversion.
- Sixteen channels simultaneously: 17 μS/16 channels.
Calibrated System Accuracy
- Linearity error: ± 0.5 LSB.
- Offset error: ± 0.0625 LSB.
- Gain error: ± 0.0625 LSB.
- Total error: ± 0.625 LSB (± 0.0152 % FSR) Max..
Data format (left–justified)
- Straight Binary or Two’s Complement.
Output at Reset
- 0 volts.
Output Current
- 10 mA (maximum). This corresponds to a minimum load resistance of 1K ohms with a 10 V output.
Short Circuit Protection
- Indefinite at 25° C.
Alarm Function
- Software readable for brownout, short-circuit and temperature exceeding 150° C conditions.
Conforms to PCIe Base Specification
- Revision 2.1.
Lanes
- 1 lane in each direction.
Bus Speed
- 2.5 Gbps (Generation 1).
Memory
- 4k space required.
- 1 base address register.
Operating Temperature
- -40° to 70° C.
- -40° to 85° C. (requires an AcroPack heatsink conduction-cool kit)
Storage Temperature
- -55° to 150° C.
Relative Humidity
- 5 to 95 % non-condensing.
MTBF
- 4,094,686 hrs. at 25° C, MIL-HDBK-217F, notice 2.
Power
- +3.3 Vdc ± 5 % 400 mA Typical, 480 mA Max..
- +12 Vdc ± 5 % 85 mA Typical, 275 mA Max..
- -12 Vdc ± 5 % 50 mA Typical, 200 mA Max..
Length
- 70 mm.
Width
- 30 mm