PMID- 9141314
OWN - NLM
STAT- MEDLINE
DCOM- 19970522
LR  - 20161021
IS  - 0158-9938 (Print)
IS  - 0158-9938 (Linking)
VI  - 20
IP  - 1
DP  - 1997 Mar
TI  - Field programmable gate array in a fast 256-channel data acquisition system.
PG  - 47-52
AB  - We describe an FPGA (Field Programmable Gate Array) controlled fast data 
      acquisition system with 256 channels suitable for high resolution 
      electrocardiographic (ECG), electrogastrographic (EGG) and late potential (LP) 
      recordings. The A/D converter provides 800ns conversion time with 12 bits. The 
      S11W, a 16 bit, parallel, I/O interface, is used to connect the data acquisition 
      device to a portable SPARC-compatible computer. With only one A/D converter, we 
      have achieved 2 kHz sampling rate for each channel and more than 1MB/s overall by 
      using an overlapping delay technique. Channel parameters can be selected 
      independently from one of eight gains ranging from 50 to 10,000, and one of three 
      filters ("ECG" 0.05-120Hz, "EGG" 0.001-1Hz and "LP" 60-1kHz). There are eight 
      programmable sampling frequencies from 2Hz to 2kHz. The system is fully battery 
      operated and protected from the defibrillation high voltages to meet the safety 
      requirements. The acquisition system can be widely used in medical research and 
      clinical applications.
FAU - Li, C Y
AU  - Li CY
AD  - Div. of Clinical Sciences, Univ. of Tasmania, Hobart, Australia.
FAU - Pluta, W K
AU  - Pluta WK
FAU - Kilpatrick, D
AU  - Kilpatrick D
LA  - eng
PT  - Journal Article
PL  - Netherlands
TA  - Australas Phys Eng Sci Med
JT  - Australasian physical & engineering sciences in medicine
JID - 8208130
SB  - IM
MH  - Analog-Digital Conversion
MH  - Electric Impedance
MH  - Electric Power Supplies
MH  - Electricity
MH  - Electrocardiography
MH  - Evoked Potentials
MH  - *Signal Processing, Computer-Assisted
EDAT- 1997/03/01 00:00
MHDA- 1997/03/01 00:01
CRDT- 1997/03/01 00:00
PHST- 1997/03/01 00:00 [pubmed]
PHST- 1997/03/01 00:01 [medline]
PHST- 1997/03/01 00:00 [entrez]
PST - ppublish
SO  - Australas Phys Eng Sci Med. 1997 Mar;20(1):47-52.