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Location: SKUE34
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Product Specifications
8 Analog Input Channels, 4 Analog Output Channels
16-Bit Resolution; Analog Inputs and Outputs
8-Bit Bi-directional Digital Port with Two Control Lines
Auto calibration of all Analog Channels; Internally Controlled
Simultaneous Analog Input Sampling; 16-Bit A/D Converter per Channel
Analog Input Sample Rates adjustable up to 200,000 Samples per Second per Channel
32K-Sample Analog Input FIFO Buffer
Continuous and Triggered-Burst Input Modes. Supports Multiboard Synchronization.
16-Bit D/A Converter per Analog Output Channel
Analog Outputs Disconnect from System Under Software Control
Simultaneous Updating of Outputs with Hardware or Software Strobe
Analog Output Aggregate Data Rates to 250K Samples per Second, host dependent
Loopback Feature for Built-in-Test Support and Auto calibration
Single-width PMC Form Factor
VxWorks™ Driver available
The PMC-ADADIO board is a single-width PMC module which contains eight 16-Bit A/D converters, four 16-bit D/A converters, and all supporting functions necessary for adding flexible analog I/O capability to a PCI host. The board is designed for minimum off-line maintenance, and includes internal monitoring and loopback features that eliminate the need for disconnecting or removing the module from the system for calibration. All analog input and output system connections are made through a single 68-pin subminiature-D front-access I/O connector. The analog outputs can be internally disconnected from the system I/O connector under software control.
Offset and gain trimming of the 16-bit ADC and output DAC's is performed by 24 12-bit DAC's (Figure 1). System analog inputs pass through a selftest network that can replace the system signals either with a precision voltage standard or with the four analog output channels, under software control. This arrangement is used during auto calibration to determine the offset and gain correction parameters for the ADC, and for each of the output D/A converters. The correction parameters are stored in a calibration EEPROM for subsequent transfer to the calibration DAC's during board initialization. Auto calibration can be invoked at any time from the PCI bus.
Each analog output channel is accessed through an independent 16-bit data register in PCI memory space. ADC conversion data are read by the bus through an analog input FIFO buffer. An auxiliary digital port contains eight bits of bi-directional data and two control lines, and is controlled through a single register.
Communication with the host PCI bus is provided by a PCI Interface Adapter which furnishes a 32-bit local bus for exchanging information between the FIFO buffers, the adapter, and the Local Controller. All internal operations are managed by the Local Controller.
Alternative Part No. PMC ADADIO 311 AMI, PMC-ADADIO, PMC ADADIO