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The 52-Channel Isolated Analog to Digital Converter (ADC) Board utilises 16 separate digitally isolated analog to digital converter channels, each with a sample rate of 250 kSps.

Up to 12 of these channels can each be multiplexed four ways to provide 48 channels at a reduced data rate. A Field-Programmable Gate Array (FPGA) is used to provide access to the digital data over the PCI bus.

Backplane I/O is also supported, with a maximum of 49 channels (limited by available I/O pins on the cPCI connector).

Input channel to system isolation is 2 500 V RMS.

49-Channel Conduction-Cooled Isolated Digital to Analog Converter Board
49-Channel Conduction-Cooled Isolated Digital to Analog Converter Board

Block Diagram
Block Diagram of the 52-Channel Isolated Digital to Analog Converter Board

Architecture

An 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. Multiplexers are used to increase the total number of differential inputs.

Features
  • high number of analog inputs
  • programmable gain amplifiers
  • 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

Formfactor and Bus Interface PICMG 2.0 (R 3.0) CompactPCI
32 bit, 66 MHz
3,3 V PCI signaling, 5 V tolerant
Analog Input Type Differential or single-ended
Number of Analog Inputs Front Panel : 16 full speed or 4 full speed and 48 reduced performance
Backplane : 16 full speed or 5 full speed and 44 reduced performance
Maximum Sample Rate 250 000 samples/second per channel (full speed)
10 000 samples/second per channel (reduced performance)
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 DC at 0,7 A (3,5 Watt); 12 V DC 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 400 000 hours
Ruggedised Grade Ground, Mobile, 45 C
Naval, Sheltered, 40 C
Airborne, Inhabited Cargo, 55 C		 110 000 hours
190 000 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 100 mm x 160 mm 100 mm x 160 mm
Mass 200 g +/- 10 g 225 g +/- 10 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 Connector Grade
CCII/ADC/CPCI/52C/FP/COM Air Front Panel Commercial
CCII/ADC/CPCI/52C/FP/IND Air Front Panel Industrial
CCII/ADC/CPCI/52C/FP/RGD Air Front Panel Ruggedised
CCII/ADC/CPCI/49C/BP/COM Air Backplane Commercial
CCII/ADC/CPCI/49C/BP/IND Air Backplane Industrial
CCII/ADC/CPCI/49C/BP/RGD Air Backplane Ruggedised
CCII/ADC/CPCI/49C/BP/CC Conduction Backplane Ruggedised

CADCSS04 Rev. 1.4  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