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Automatic Autocalibration |
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.
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Compatible Upgrade for DMM-32-AT |
DMM-32X-AT is designed to be 100% backward compatible with our top-selling DMM-32-AT 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.
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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
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Programmable Analog Input Ranges
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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.
| Mode | Full-Scale | Output Range | Resolution |
| Unipolar | 10V | 0-10V | 2.44mV |
| Unipolar | 5V | 0-5V | 1.22mV |
| Bipolar | 10V | ±10V | 4.88mV |
| Bipolar | 5V | ±5V | 2.44mV |
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Digital and Counter/Timer I/O Features |
DMM-32-AT features 24 digital I/O lines and 2 82C54-type counter/timers just like its predecessor DMM-32-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.
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Ruggedization for Real World Applications |
DMM-32-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 Diamond Systems for information on these options.
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Free Advanced Driver Software |
Our industry-leading Universal Driver software is provided free with all our 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.
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I/O Connector Pinouts |
| Analog Ground | 1 | 2 | Analog Ground |
| Vin 0 / 0+ | 3 | 4 | Vin 16 / 0- |
| Vin 1 / 1+ | 5 | 6 | Vin 17 / 1- |
| Vin 2 / 2+ | 7 | 8 | Vin 18 / 2- |
| Vin 3 / 3+ | 9 | 10 | Vin 19 / 3- |
| Vin 4 / 4+ | 11 | 12 | Vin 20 / 4- |
| Vin 5 / 5+ | 13 | 14 | Vin 21 / 5- |
| Vin 6 / 6+ | 15 | 16 | Vin 22 / 6- |
| Vin 7 / 7+ | 17 | 18 | Vin 23 / 7- |
| Vin 8 / 8+ | 19 | 20 | Vin 24 / 8- |
| Vin 9 / 9+ | 21 | 22 | Vin 25 / 9- |
| Vin 10 / 10+ | 23 | 24 | Vin 26 / 10- |
| Vin 11 / 11+ | 25 | 26 | Vin 27 / 11- |
| Vin 12 / 12+ | 27 | 28 | Vin 28 / 12- |
| Vin 13 / 13+ | 29 | 30 | Vin 29 / 13- |
| Vin 14 / 14+ | 31 | 32 | Vin 30 / 14- |
| Vin 15 / 15+ | 33 | 34 | Vin 31 / 15- |
| Vout 3 | 35 | 36 | Vout 2 |
| Vout 1 | 37 | 38 | Vout 0 |
| Vref Out | 39 | 40 | Analog Ground |
| Clk Out / Dout 3 | 41 | 42 | Counter 2 Out / Dout 2 |
| S/H Out / Dout 1 | 43 | 44 | Counter 0 Out / Dout 0 |
| Ext. Clk In / Din 3 | 45 | 46 | External Gate / Din 2 |
| Gate 0 / Din 1 | 47 | 48 | Counter 0 In / Din 0 |
| +5V | 49 | 50 | Digital Ground |
| A7 | 1 | 2 | A6 |
| A5 | 3 | 4 | A4 |
| A3 | 5 | 6 | A2 |
| A1 | 7 | 8 | A0 |
| B7 | 9 | 10 | B6 |
| B5 | 11 | 12 | B4 |
| B3 | 13 | 14 | B2 |
| B1 | 15 | 16 | B0 |
| C7 | 17 | 18 | C6 |
| C5 | 19 | 20 | C4 |
| C3 | 21 | 22 | C2 |
| C1 | 23 | 24 | C0 |
| Latch | 25 | 26 | Ack |
| NC | 27 | 28 | NC |
| RS232_TX | 29 | 30 | RS232_RX |
| RS485_+ | 31 | 32 | RS485_- |
| +5V | 33 | 34 | Digital Ground |
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Specifications |
| Analog Inputs | |
| Number of inputs | 32 single-ended, 16 differential, or 16 SE + 8 DI; user selectable |
| A/D resolution | 16 bits (1/65,536 of full scale) |
| Bipolar ranges | ±10V, ±5V, ±2.5V, ±1.25V, ±0.625V |
| Unipolar ranges | 0-10V, 0-5V, 0-2.5V, 0-1.25V, 0-.625V, |
| Input bias current | 100pA max |
| Overvoltage protection | ±35V on any analog input without damage |
| Input Impedance | 10^13 ohms |
| Nonlinearity | ±3LSB, no missing codes |
| Conversion rate | 250,000 samples/sec.max |
| On-board FIFO | 1K x 8(1024 16-bit samples) |
| Calibration | Automatic;values stored in EEPROM |
| Analog Outputs | |
| Number of outputs | 4 |
| D/A resolution | 12 bits (1/4096 of full scale) |
| Output ranges | ±5, ±10, 0-5, 0-10 |
| Output current | ±5mA max per channel |
| Settling time | 6µS max to 0.01% |
| Relative accuracy | ±1 LSB |
| Nonlinearity | ±1 LSB, monotonic |
| Reset | Reset to zero-scale or mid-scale (jumper selectable) |
| Calibration | Automatic; values stored in EEPROM |
| Digital I/O | |
| Main I/O | 24 programmable I/O |
| Input current | ±1µA max |
| Output current | |
| Logic 0 | 64mA max per line |
| Logic 1 | -15mA max per line |
| Auxilary I/O | 4 inputs, 4 outputs, optional use as trigger/control lines |
| Counter/Timers | |
| A/D Pacer clock | 32-bit down counter (2 82C54 counters cascaded) |
| Clock source | 10MHz on-board clock or external signal |
| General purpose | 16-bit down counter (1 82C54 counter) |
| General | |
| Power supply | +5VD±10%@410mA typ |
| Operating temperature | -40 to +85°C |
| Weight | 3.4oz/96g |
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Get an online quote |
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