A programmable PC/104 DMM–16–AT gain amplifier, pro- 16–bit A/D D/A module grammable unipo- lar/bipolar range, The DMM–16–AT offers 16 total analog inputs with and programmable 16–bit resolution and programmable input range; 5V/10V full–scale 100,000 samples per second maximum sampling rate range combine to with FIFO operation; four analog outputs with 12–bit give the resolution; user–adjustable analog output ranges; DMM–16–AT a 16 lines of digital I/O; one 32–bit counter/timer for A/D total of seven dif- conversion and interrupt timing; and one 16–bit count- ferent possible ana- er/timer for general purpose use. log input ranges. The digital I/O The DMM–16–AT also provides autocalibration for both lines are CMOS/TTL compatible. These lines will inter- analog input and output channels. All calibration adjust- face with logic devices, switch inputs, LEDs, and indus- ments are performed using a TrimDAC and precision, try–standard opto module racks. Octagon has a variety low–drift reference voltages on the board. The optimum of opto modules and termination boards for easy access TrimDAC values for each input range are stored in an for field wiring. EEPROM and recalled automatically on power up. PC/104 cards plug into any system with a PC/104 inter- The analog input channels on the DMM–16–AT feature face. The Octagon family of PC/104 single board com- programmable gains of 1, 2, 4, and 8, as well as pro- puters, expansion cards, and enclosures provides a com- grammable unipolar/bipolar range, for a total of nine plete solution for applications in transportation, security, different input ranges. The 512–sample FIFO enables the military, communications, distributed control, ® board to operate at full speed in Windows operating point–of–sale, ticketing machines, weighing equipment, systems using interrupts. and other similar applications. The four analog output channels have multiple unipolar and bipolar output ranges. The DACs feature simultane- ous update capability. A programmable output range Certified Partner program feature lets you set the output range via software any- The DMM–16–AT is an Octagon Certified where between 0V to 10V in unipolar and –5V to +5V Partner product, which is guaranteed compati- in bipolar modes ble with Octagon CPU cards. The DMM–16–AT will withstand high shock and vibration, and operates in temperature ranges from –40° to 85° C. This rugged expansion card will provide years of reliable service in the most challenging environments. 11 6510 W. 91st Avenue • Westminster CO 80031 • 303-430-1500 www.octagonsystems.com DIGITAL I/O: Features � Eight dedicated digital outputs, 8 dedicated digital ANALOG INPUTS: inputs, TTL compatible � 16 input channels, may be configured as � Input current ±1μA max 16 single–ended or eight differential � Output current: logic 0: 64 mA max.; � 16–bit resolution logic 1: –15 mA max. � Programmable gain, range, and polarity on inputs � Auxiliary DIO 4 inputs, 3 outputs, TTL compatible � Input ranges: Bipolar: ±10V, ±5V, ±2.5V, ±1.25V Unipolar: 0–10V, 0–5V, 0–2.5V COUNTER/TIMERS & A/D TRIGGERING: � 512–sample FIFO for reduced interrupt overhead � One 32–bit counter/timer (2 82C54 counters cascad- ed) for A/D pacer clock and interrupt operation tim- � Autocalibration of all input ranges under ing software control � One 16–bit counter/timer for user counting and tim- � Input bias current 100 pA max ing functions � Maximum input voltage ±10V for linear operation � Pacer clock source: 10 MHz or 1 MHz on–board � Overvoltage protection ±35V on any analog input clock source without damage � General purpose 16–bit down counter (1 82C54 ctr); � Nonlinearity ±3 LSB, no missing codes 100KHz or external input � Conversion trigger software command, internal pacer clock, or external TTL signal AUTOCALIBRATION: � Circuits calibrated: A/D (all eight input ranges) & D/A ANALOG OUTPUTS: � A/D error after calibration ±2 LSB � Four analog output channels with 12–bit resolution, � D/A error after calibration ±2 LSB 5 mA max output current � D/A resolution 12 bits (1/4096 of full scale) CONNECTORS: � Multiple fixed full–scale output ranges, including � 50–pin connector for all I/O; connects to unipolar and bipolar ranges: C–50–18 cable Fixed unipolar: 0–5V or 0–10V Fixed bipolar: ±5V or ±10V Programmable: 0–10V or ±10V in .01V steps ADDRESSING & INTERRUPTS: � Autocalibration under software control � Jumper–selectable base addresses from 220h to 3E0h. � Output current ±5 mA max per channel � Interrupts selected via jumpers to indicate end of � Settling time 4 μS max. to ±1/2 LSB analog conversion. The board can also generate interrupts to transfer digital data into or out of the � Relative accuracy ±1 LSB board, as well as at regular intervals according to a � Nonlinearity ±1 LSB, monotonic programmable timer on the board. Individual control bits are used to enable each type of interrupt. � Output reference +5V ± 3 mV 22 6510 W. 91st Avenue • Westminster CO 80031 • 303-430-1500 www.octagonsystems.com ENVIRONMENTAL: SOFTWARE DRIVERS � –40° to 85° C operating � DOS, Linux 2.4, QNX, & Windows XP, NT, 98 � 5% to 95%, RH, noncondensing ORDERING INFORMATION #6626 DMM–16–AT 16–channel, SIZE & POWER: 16–bit analog I/O module � 3.550 in. x 3.775 in., PC/104 form factor; compatible with 8–bit bus systems � +5VDC ±10%, 350 mA typical ACCESSORIES ORDERING INFORMATION #6742 C–50–18, 50–conductor 18” ribbon cable � I/O header ±15V, current ±10 mA max with DACs unloaded; not short–circuit protected #6747 STB 104, screw terminal board; mounts directly on PC/104 stack for easily–accessible � +5V output current limited by PC/104 power supply; wiring termination not short–circuit protected 33 6510 W. 91st Avenue • Westminster CO 80031 • 303-430-1500 www.octagonsystems.com