The E1413B scanning A/D is designed for high performance data acquisition and computer aided test applications where the key requirements are:
High speed scanning
16-bit resolution
High accuracy: .01% of reading
4 mV to 16 V full scale voltage input
64 Ksample FIFO buffer for block transfers
Current value buffer for on-line monitoring
The unique design of this analog sub-system provides a new level of density by combining a 16-bit A/D with a 64 channel differential FET multiplexer in a single C-size slot. Up to eight different signal Conditioning Plug-ons (SCP's) with eight channels each can be added to the E1413B to provide such capabilities as:
Direct input (I00 KHz bandwidth)
10 Hz low pass filtering
Fixed gain and filter per channel
Programmable gainlater per channel
Current sources for resistance, temp
Bridge completion and excitation for strain
Breadboard card for custom circuits
Channel scans can be made in any order using any function on any channel - all at full speed, including autoranging. Up to four unique scan lists, each with a different sample rate, can be stored in RAM and selected on-the-fly with a single software command. In addition, these scan lists can be automatically sequenced in any order with a unique auto-sequence scan list. Data transfer speed has been greatly improved because multiple E1413B's can scan in parallel at 111 speed and then sequentially transfer data over the VXI backplane in Dl6 or D32 format at rates which match even the fastest embedded VXI computer. The FlFO RAM is a h h speed buffer which stores up to 64 K samples until the controller is ready for efficient block data transfer. For on-line monitoring, the current Value Table RAM always contains the most recent measured value of each channel in the scan list. This RAM and the FlOFO RAM can be accessed asynchronously.
