Preliminary

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The 64-Channel Isolated Analog to Digital Converter (ADC) Board provides 64 high-speed digitally isolated inputs. Each channel features a sample rate of 100 kSps. A Field- Programmable Gate Array (FPGA) is used to provide access to the digital data over the PCI bus.

I/O channels to system isolation is 2 500 V RMS.

The board conforms to the PICMG 2.0 (R3.0) 6U CompactPCI standard.

Block Diagram
64-Channel Isolated Analog to Digital Converter Board

Architecture

A FPGA is used to control and read the data from the analog to digital converters and provides the PCI Interface. High-speed digital isolators are used to isolate the system side bus from the analog inputs.

Features
  • high number of analog inputs
  • programmable inputs
  • Air-Cooled and Conduction-Cooled versions
  • Commercial, Industrial and Ruggedised grades
  • wide range input (-10 V to +10 V)
  • high sample rate of 250 000 samples per second
  • high-speed digital isolation
  • Board Identification switch
  • wide bandwidth (up to 125 kHz)
  • input pin overvoltage protection

Bus Interface 64 bit, 66 MHz
Electrically : PICMG 2.0 (R 3.0) CompactPCI;
3,3 V PCI signaling, 5 V tolerant
Analog Inputs 64 differential or single-ended
Maximum Sample Rate 250 000 samples/second per channel
Resolution 16 bit
Voltage Isolation 2 500 V RMS (input channel to system)
Input Amplifier Programmable gains of 1, 2, 4 and 8 (optional 1, 10, 100 and 1000), maximum slew rate of 0,2 V/µs
Input Bandwidth Up to 125 kHz (-3 dB)
Power 3,3 V DC at 2,5 A (8,25 Watt); 5 V at 1,4 A (7 Watt); 12 V at 0,2 A (2,4 Watt)
MTBF Figures according to MIL-HDBK-217F, Parts Stress Method
Commercial and Industrial Grades Ground Benign, Controlled, 25 C 900 000 hours
Ruggedised Grade Ground, Mobile, 45 C
Naval, Sheltered, 40 C
Airborne, Inhabited Cargo, 55 C		 90 000 hours
160 000 hours
95 000 hours
Software Drivers Support for Linux
VxWorks, Windows and others are costed options
Physical Characteristics
Cooling Type Air-Cooled Conduction-Cooled
Dimensions 233,35 mm x 160 mm 233,35 mm x 160 mm
Mass 500 g +/- 100 g 800 g +/- 100 g
Environmental Specifications
Grade Commercial Industrial Ruggedised
Temperature
- Operating
- Storage		  
0 C to +55 C
-40 C to +85 C		  
-15 C to +75 C
-40 C to +85 C		  
-40 C to + 85 C
-55 C to +125 C
Humidity 0% - 90% 0% - 95% 0% - 95%
Shock 10 g peak for 11 ms 20 g peak for 11 ms 40 g peak for 11 ms
Vibration
- Sine
- Random
2 g (peak) at 10 Hz to 100 Hz
0,04 g²/Hz at 15 Hz to 2 kHz
5 g (peak) at 5 Hz to 2 kHz
0,06 g²/Hz at 15 Hz to 2 kHz
10 g (peak) at 5 Hz to 2 kHz
0,1 g²/Hz at 15 Hz to 2 kHz
Part Designation Cooling Grade
CCII/ADC/CPCI/64C/FP/COM Air Commercial
CCII/ADC/CPCI/64C/FP/IND Air Industrial
CCII/ADC/CPCI/64C/FP/RGD Air Ruggedised
CCII/ADC/CPCI/64C/BP/CC Conduction Ruggedised

CADCSS01 Rev. 1.0  2015-06-30
CCII Systems (Pty) Ltd • P.O. Box 171 • Rondebosch 7701 • South Africa 
Telephone : (+27 21) 683 5490 • Facsimile : (+27 21) 683 5435 • WWW : www.ccii.co.za