Extended Temp, Low-cost PC/104 A/D and D/A Modules Don’t Require Calibration

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Two new, low-cost PC/104-compatible analog I/O cards operate at a temperature range of -40° to +85°C without the need for calibration. Introduced by WinSystems, the PCM-MIO-G-AD-1 is a 16-channel, 16-bit analog input card and the PCM-MIO-G-DA-1 is an 8-channel, 12-bit analog output card. Both cards also support 48 lines of digital I/O. These small, 90 x 96mm expansion boards are designed to meet customer requirements for accurate analog and digital I/O over an extended temperature range. They are designed for industrial, medical, security, transportation and Mil/COTS applications. Based upon Linear Technologies' precision converters and voltage references, these cards do not require calibration, which results in quick, easy setup; plus it eliminates the necessity for readjustment and recalibration to installed units in the field.

The input ranges for the PCM-MIO-G-AD-1 are 0-5V, ±5V, 0-10V and ±10V. Two independent, 16-bit A/D converters support up to 16 single-ended or 8 differential channels or various combinations of both. The conversion speed is 100K samples/sec. The PCM-MIO-G-DA-1 has eight independent, 12-bit D/A converters on board. The output voltage ranges are 0-5V, 0-10V, ±5V and ±10V. All output channels are programmable and can be updated and cleared individually or simultaneously.

Both the PCM-MIO-G-AD-1 and PCM-MIO-G-DA-1 boards have 48 lines of digital I/O individually programmable for input, output, or output with read-back. The lines are TTL-compatible and can sink 12 mA, which supports direct connection to industry-standard, optically isolated AC and DC signal conditioners. Isolated signal conditioners protect, filter and isolate the analog input and output signals from electrical transients. Both cards are supplied with free drivers for C, Linux and Windows XP Embedded, which can be downloaded free of charge from the Web site. The PCM-MIO-G-AD-1 list price is $249 and the PCM-MIO-G-DA-1 list price is $279.  

WinSystems, Arlington, TX. (817) 274-7553. [].