VCM-DAS-3 Analog Output + Digital I/O Module  16 channel analog output with 12-bit resolution  24 channel digital I/O  Extended temperature operation  RoHS compliant Highlights Overview The VCM-DAS-3 I/O module provides 16 channels of 12-bit resolution analog outputs along Analog Output with 24 digital I/O lines on a single PC/104 module. The rugged VCM-DAS-3 is designed 16 analog outputs with 12-bit resolution. to provide capabilities beyond what is presently available on the market while maintaining Multiple Output Ranges drop-in compatibility with current industry standards. Ideal applications include process Configure output ranges via software or with on-board jumpers. control, closed-loop servo control, and motor-control. DAC Update Update outputs individually or simultaneously. Details Dual ISA Modes The versatile VCM-DAS-3 I/O module has four LTC2704 quad 12-bit D/A converter chips Enhanced 16-bit ISA functionality is provided while retaining 8-bit compatibility. which provide sixteen 12-bit analog output channels. All output ranges can be configured independently via software or in groups of eight by jumpers. Both unipolar and bipolar mode Read-back Function are fully supported by this module. All analog output channels can be updated individually Read-back of DAC and SPAN codes for simplified programming or simultaneously, either with a software command or in response to an external trigger. and setup. The analog outputs can source or sink up to 5mA each. All outputs can be configured Configurable Reset to reset to either zero scale or mid-scale on power-up. To facilitate programming and Configure outputs to reset to zero or mid-scale on power-up. simplify setup, read-back functionality is provided. Enhanced 16-bit ISA functionality is Digital I/O also provided while retaining 8-bit compatibility. 24-channels of CMOS/TTL compatible digital I/O. An 82C55 compatible chip provides 24 lines of CMOS/TTL compatible digital I/O which RoHS Compliant power-up in input mode. Pull-up resistors provide known logic levels during startup. Meets EU Directive 2002/95/EC. The VCM-DAS-3 is designed and tested for extended temperature operation (-40° to +85°C) and is fully RoHS-compliant. It requires only +5VDC from the system power supply via the PC/104 bus. I/O connections can be made with either a 2mm latching connector or a 50-pin shrouded header for 0.1” legacy connectors. VCM-DAS-3 VersaLogic Corporation • 3888 Stewart Road, Eugene, OR 97402 • (541) 485-8575 • Fax (541) 485-5712 • info@VersaLogic.com • www.VersaLogic.com VCM-DAS-3 Analog Output + Digital I/O Module Specif ications Power Requirements Vcc +5.0V ± 10% @ 0.5A (2.5W) typ. General Bus Speed PC/104: 8 MHz 16-bit and 8-bit compatible Compatibility PC/104: Compatible RoHS: Compliant Board Size 3.55” x 3.775” (90 mm x 96 mm) Mechanical Storage Temperature -40° to +85°C Operating Temperature -40° to +85°C Thermal Shock 5°C/min over operating temperature Vibration, Sinusoidal 2g constant acceleration from 5 to Sweep 500Hz, 20 minutes per axis, MIL-STD- 202G, Method 204, Modified Condition A 2 Vibration, Random .02g /Hz (5.35g rms) 15 minutes per axis, MIL-STD-202G, Method 214A, Condition A Mechanical Shock 30g half-sine, 11 ms duration per axis, MIL-STD-202G, Method 213B, Condition J Humidity Less than 95%, noncondensing Number of Outputs 16 Analog Resolution 12-bits Outputs Output Ranges Bipolar: ±10V, ±5V, ±2.5V, -2.5V to 7.5V Unipolar: 0 to 10V, 0 to 5V Ordering Information Output Current ±5 mA max per channel VCM-DAS-3a ... 12-bit, 16 channel D/A converter with 24-bit digital I/O Output Impedance 0.015 Ohm (max) Settling Time 8 µs Typ. (±10V range, 20V step to ±1LSB) Accuracy ±1LSB Accessories Integral Nonlinearity ±1LSB VL-CBR-4004 .................I/O cable assembly and paddleboard (RoHS) Differential Nonlinearity ±1LSB VL-HDW-101 ............................................. Standoff Pkg., metric thread Calibration One gain and one zero adjustment for all 16 channels Gain Temp. Coefficient ±2 ppm/°C Update Method Simultaneous or individual via software command or external trigger Reset Outputs reset to 0V when board is jumpered for Enhanced Mode, midscale otherwise Number of Channels 24 channels Digital I/O Compatibility CMOS / TTL Low Input Voltage -0.3V min, 0.8V max High Input Voltage 2.0V min, 5.5V max Low Output Voltage 0.4V max High Output Voltage 3.0V min Output Current +4mA / -8mA max Pull-up Resistor 10K Ohm Reset All channels set to input mode Operating Systems Compatible with most x86 operating Software systems, including Windows 95/98/NT/ CE/XP, QNX, VxWorks, and Linux Data represents standard operation at 25°C with 5.0V supply unless otherwise noted. Specifications are subject to change without notice. PC/104 is a trademark of the PC/104 Consortium. VersaLogic Corporation • 3888 Stewart Road, Eugene, OR 97402 • (541) 485-8575 • Fax (541) 485-5712 • info@VersaLogic.com • www.VersaLogic.com