Diamond Systems Diamond-MM-32X-AT

Introduction

The new Diamond-MM-32X-AT analog I/O PC/104 module from Diamond Systems represents a leap ahead in the state of the art. DMM-32X-AT utilizes patented Automatic Autocalibration technology to calibrate its A/D and D/A circuits automatically whenever required, without user intervention. Onboard intelligence, temperature sensor, and calibration circuitry enable the board to detect when the temperature has changed enough to require calibration and then recalibrate automatically to a typical accuracy of only +/-1LSB offset and gain. This means you get measurements with the maximum possible accuracy over the life of the product, without doing anything at all. DMM-32X-AT is the first and only board to offer this advanced capability.

Compatible Upgrade for DMM-32-AT

DMM-32X-AT is designed to be 100% backward compatible with the top-selling DMM-32-AT (now end of life) in features, software, connector pinout, and even configuration jumpers. This provides DMM-32-AT customers with an easy upgrade path for increased performance and reduced cost. Simply install the DMM-32X-AT in place of your DMM-32-AT and experience the benefits of our new board right away.

Analog I/O Features

The board offers 32 analog voltage inputs with 16-bit A/D resolution and 250KHz sample rate. Sampling methods include single-channel, multi-channel round robin, and multi-channel scan. Programmable gain and jumper-selected unipolar/bipolar and single-ended / differential configurations provide the highest level of flexibility in meeting your analog input needs. The board can even be configured for a combination of single-ended and differential inputs at the same time.

Input Channel Configuration

Programmable Analog Input Ranges

An expanded 1,024-sample FIFO supports top-speed A/D sampling without errors in all operating systems. The FIFO features another industry first: A programmable threshold lets you decide how frequently the board generates interrupts, so you can tune the board's performance to your hardware and your application. The board also includes 4 analog voltage outputs with 12-bit D/A and jumper-selected output ranges of 0-10V or +/-10V. A 1,024 sample digital waveform buffer lets you generate periodic arbitrary waveforms with up to 100KHz datapoint output rate.

Digital and Counter/Timer I/O Features

DMM-32X-AT features 24 digital I/O lines and 2 82C54-type counter/timers just like its predecessor DMM-32X-AT. The I/O lines can be programmed for input or output in groups of 8 bits. In output mode the lines are buffered for enhanced output current capability. All DIO lines feature jumper-selectable pull-up / pull-down resistors as well as ESD protection devices to help prevent field failures. The counter/timers emulate an 8254. Counter 0 is standalone and can be used for general purpose counting, timing, or timer-based interrupts. Counters 1 and 2 are joined together to provide a 32-bit timer for A/D sample rate control or D/A waveform output control.

Ruggedization for Real World Applications

DMM-32X-AT is tested and guaranteed for -40 to +85ºC operating temperature off the shelf. Additional services can enhance the board's ruggedness and reliability: All configuration jumpers can be replaced with hardwired 0-ohm configuration resistors using dedicated footprints on the board for use in high-vibration environments. Optional conformal coating and latching connectors provide additional protection if needed. Contact us for information on these options.

Software

The industry-leading Universal Driver software is available free with all Diamond Systems I/O boards. Universal Driver provides programming support for the most popular embedded operating systems, including Linux, Windows 95/98/NT/2000/XP/XP embedded, Windows CE.NET, QNX, VxWorks, and DOS. Example programs are provided for each function and each operating system to help you get started with your application development quickly.