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Diamond Point International

Aitech S930 - 3U CompactPCI Radiation Tolerant Analog I/O Card

64 Analog Channels (12-Bit A/D Converter), Three 12-Bit DAC Outputs and More


Aitech’s S930 Analog IO card design is based on a 12-bit resolution analog to digital converter and a 12-bit resolution digital to analog converter. The S930 is designed with a PCI bridge implemented by an antifuse FPGA allowing a processor module like S950 to access the analog I/Os from the cPCI bus.

The S930 provides 64 analog inputs and 2 analog outputs. Of the 64 inputs, 51 inputs are assigned to external inputs, 2 inputs are used to monitor the output channels, 6 inputs are used to monitor the power sources, 4 inputs are used to monitor the references and BIT signals, and 1 channel is not used (grounded). The S930 operates in a single conversion mode, i.e., all analog inputs and outputs perform their conversions once upon receiving a start command. The conversion data is stored in the buffer memory. Once the conversions are completed, an SDONE bit is set. The SDONE bit may be polled by the host processor or can be set by software to generate a software-configurable cPCI bus interrupt.



FeaturesLow Pass Filter with Cutoff Frequency Below 50 Hz on all Inputs
Series Resistors as Analog Input Protection
Buffer Memory with Triple-voted Algorithm is provided for each Converted Analog Input
Designed for LEO, Mars Terrestrial with an Option for GEO Environments
Interrupt Capability to Indicate Conversion Completed
10V, 200mA Reference for Sensor Excitation
33 Mhz, 32-bit PCI 2.1 Compliant CompactPCI interface
Level-2 Components per NASA GSFC 311-INST-001A Specification are available
Connections12-bit A/D Converter with -10V to +10V Input Range
64 Analog Channels (51 Inputs, 2 Outputs and 11 Bus Voltage Monitors)
Three 12-bit DAC outputs from -10V to +10V, one output is used as BIT only


ExpansionPCI 2.1 Interface Compliant, 32 bit @ 33 MHz PCI Bus Interface
ElectricalThe S930 draws its power +5.0V and +3.3V from the standard cPCI backplane. It generates its own specific power onboard (+2.5V):
• +3.3V (±5%), 0.19A (typical)
• +5V (±5%), 0.63A (typical)
• +15V (±10%), 0.14A (typical)
• -15V (±10%), 0.14A (typical)
MechanicalThe S930 is available in a conduction cooled 3U format per VITA 30.1-2002. A custom metal frame provides excellent rigidity, shock resistance and thermal characteristics.
All versions are offered in a conduction-cooled 3U CompactPCI form factor per VITA 30.1-2002 standard.
Conformal CoatingConformal optional (series 100), standard (series 200/500). Acrylic or Silicone
TemperatureSeries-100 Lab Grade EDU
• Temperature range (operation): 0 to +55°C
• Temperature range (storage): -40 to +85°C

Series-200 Qual Unit
• Temperature range (operation): -40 to +71°C
• Temperature range (storage): -50 to +100°C

Series-500 Radiation Tolerant Flight Unit
• Temperature range (operation): -40 to +65°C (space vacuum)
• Temperature range (storage): -62 to +125°C

Ruggedization level is determined in the part numbering scheme - refer to datasheet for further details
HumiditySeries-100 Lab Grade EDU: 0-90%
Series-200 Qual Unit: 0-100% (coating as standard)
Series-500 Radiation Tolerant Flight Unit: 0-100% (coating as standard)
VibrationSeries-100 Lab Grade EDU:
• Random (g2/Hz): 20-2000Hz/0.02 g2/Hz
• Sine (g PEAK): 10-100Hz/2g

Series-200 Qual Unit:
• Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Sine (g PEAK): 50-500Hz/10g

Series-500 Radiation Tolerant Flight Unit:
• Conduction-cooled: Random (g2/Hz): 20-2000Hz/0.1 g2/Hz
• Conduction-cooled: Sine (g PEAK): 50-500Hz/10g
ShockSeries-100 Lab Grade EDU: 20g/6mS
Series-200 Qual Unit: 40g/11ms, 100g/6ms
Series-500 Radiation Tolerant Flight Unit: 40g/11ms, 100g/6ms (pyro-shock 875g)
Warranty1 Year

Ordering Details

BoardRefer to datasheet for ordering part number scheme