Thanks to single-level cell (SLC) technology, DATAQ Instruments stand-alone data loggers can once again sample at throughput rates up to 14,400 samples per second.
Due to inconsistencies with older SD cards using multi-level cell (MLC) technology, we were forced to reduce the maximum stand-alone sample rate specification for DATAQ Instruments data loggers to 8 kHz, a 44% decrease. While SD cards using MLC technology allow for greater capacity by increasing the amount of data stored in individual memory cells, they require more error correction than a single-level cell SD card. The increased error correction results in slower write times.
With the discovery of single-level cell technology, whereby a single memory cell stores one bit of data, customers can consistently sample up to 14.4 kHz in stand-alone mode. In addition to faster write speeds, single level cell SD cards allow for up to 10 times the number of erase/write cycles as MLC cards. This makes single-level cell SD cards ideal for data acquisition, where information is repeatedly being stored and erased.
The new 2GB SLC SD cards can be purchased in our online store under the accessories tab of the product pages.