The 32-Channel Isolated Analog to Digital Converter (ADC) PMC Adapter utilises 8 separate digitally isolated analog to digital converter channels, each with a sample rate of 250 kSps. These channels can each be multiplexed four ways to provide 32 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.

Input channel to PMC isolation is 2 500 V RMS.

Block Diagram of the 32-Channel Isolated Analog to Digital Converter PMC Adapter

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 adapter identification switch wide bandwidth (up to 125 kHz) input pin overvoltage protection

Formfactor and Bus Interface	IEEE Std 1386.1-2001. 32 bit, 33 MHz 3,3 V PCI signaling, 5 V tolerant
Analog Inputs	8 full speed differential or single-ended inputs (also configurable as 32 reduced performance differential or single-ended inputs
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 PMC)
Input Amplifier	Programmable gains of 1, 2, 4 and 8 (optional 1, 10, 100 and 1000)
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 at 0,1 A (1,2 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		149 mm x 79 mm	149 mm x 79 mm
Mass		150 g +/- 30 g	210 g +/- 30 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/PMC/32C/FP/COM	Air	Front Panel	Commercial
CCII/ADC/PMC/32C/FP/IND	Air	Front Panel	Industrial
CCII/ADC/PMC/32C/FP/RGD	Air	Front Panel	Ruggedised
CCII/ADC/PMC/32C/BP/COM	Air	Backplane	Commercial
CCII/ADC/PMC/32C/BP/IND	Air	Backplane	Industrial
CCII/ADC/PMC/32C/BP/RGD	Air	Backplane	Ruggedised
CCII/ADC/PMC/32C/BP/CC	Conduction	Backplane	Ruggedised

CADCSS03 Rev. 1.2 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