This board has 24 digital I/O lines, configured as two 8-bit and two 4-bit ports, controlled by 8255A-compatible hardware. If more than one output at a time is in use, they must be periodically refreshed (their LabPac 32 driver software takes care of this automatically). The Lab Tender has a 16-bit DAC, multiplexed with 16 sample-and-hold outputs. It contains a 16-bit ADC with 32 single-ended (or 16 differential) inputs, having a range of ±5 V and a maximum conversion rate of 50,000 samples/sec. Scientific Solutions’ Lab Tender ISA board is a new, software-compatible version of the original 8-bit Lab Tender, introduced in 1981. Their current product line supports both ISA and PCI buses and includes multifunction data acquisition boards, digital I/O boards, and GPIB interface cards. ![]() ![]() ![]() The first manufacturer of data acquisition boards for IBM PCs was Scientific Solutions, Inc. Howard Austerlitz, in Data Acquisition Techniques Using PCs (Second Edition), 2003 Scientific Solutions, Inc.
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