UK 
Diamond Systems DMM-16RP-AT PC/104-Plus 16-Bit Analog I/O Module with Autocalibration
DMM-16RP-AT Overview
PC/104 fleets often mix hosts with PCI and ISA buses, and an I/O board that works with only one of them limits reuse. The DMM-16RP-AT is Diamond Systems’ 16-channel PC/104-Plus analogue I/O board with a dual bus interface: both PCI and ISA connectors run to the FPGA, the board selects PCI automatically when present, and a jumper forces ISA mode.
The inputs are 16-bit, set as 16 single-ended or eight differential, with gains of 1, 2, 4 and 8 and unipolar or bipolar operation for seven ranges from ±10 V to ±0.625 V. Sampling reaches 100 kHz in total, in single-channel or scan mode, triggered by software, the on-board timer or an external signal. A 512-sample FIFO with a 256-sample interrupt threshold cuts the interrupt rate, and multi-range autocalibration calibrates every input range against on-board precision references.
Four 12-bit outputs offer fixed ±5 V and 0-5 V ranges or a programmable range anywhere up to 10 V in 1 mV steps, updated individually or together. Digital I/O provides 16 lines in two 8-bit ports with jumper-selectable 3.3 V or 5 V logic and 10 kΩ pull resistors, plus 32-bit and 16-bit counter/timers on a 10 MHz clock. The DMM-16R-AT is the ISA-only version, and the RMM-1616AP-XT adds 16 analogue outputs on PC/104-Plus.
The DMM-16RP-AT uses 3.3 V signalling on PCI, so it must sit on a 3.3 V PCI host; the ISA side uses standard 5 V levels. It runs from +5 V at 375 mA typical and is tested and guaranteed from -40 to +85 °C, with ±35 V input protection. The Universal Driver supports Windows and Linux, with a Control Panel program for prototyping and diagnostics.
DMM-16RP-AT Specifications
| Overview | |
|---|---|
| Brand & Model | Diamond Systems DMM-16RP-AT |
| Features | Autocalibration Compact Industrial Rugged |
| I/O | |
| Digital I/O | DIO [16-lines] |
| Data Acquisition | |
| Analog Inputs | 16x Analog Inputs |
| 16x 16-bit A/D [8 Differential] | |
| A/D Sample Rate | 100 kS/s |
| Analog Outputs | 4x Analog Outputs |
| 4x 12-bit D/A | |
| Counter/Timers | 1x 32-bit + 1x 16-bit |
| Power | |
| Power Input | 5V DC [Bus] |
| Environmental Conditions | |
| Operating Temperature | -40°C to 85°C [-40°F to 185°F] |
| Certification | RoHS |
| Mechanical Properties | |
| Weight | 80 g (2.8 oz) |
| Dimensions | 90mm x 96mm (3.55" x 3.78") |
| Analog Inputs | |
| Number of inputs | 8 differential or 16 single-ended (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 |
| Input bias current | 3nA max |
| Overvoltage protection | ±35V on any analog input without damage |
| Input Impedance | 10^13 ohms |
| Nonlinearity | ±3LSB, no missing codes |
| Conversion rate | 100,000 samples/sec. max with interrupts |
| Conversion trigger | Software trigger, internal pacer clock, or external TTL signal |
| Input FIFO | 512 samples, 256-sample interrupt threshold |
| A/D interrupt | End of A/D conversion |
| End of A/D scan | |
| FIFO half-full | |
| Calibration | A/D and D/A circuits calibrated under software control using on-board precision references and EEPROM storage |
| Analog Outputs | |
| Number of outputs | 4 |
| D/A resolution | 12 bits (1/4096 of full scale) |
| Output ranges | Fixed: ±5, 0-5V |
| Programmable: Anywhere between 0V and 10V in 1mV increments | |
| Reset: All channels reset to mid-scale (0V for bipolar ranges) | |
| Output current | ±5mA max per channel |
| Settling time | 6µS max to 0.01% |
| Relative accuracy | ±1 LSB |
| Nonlinearity | ±1 LSB, monotonic |
| Digital I/O | |
| Number of lines | 16, organised as 2 8-bit ports |
| Logic Levels | 3.3V / 5V jumper selectable |
| Termination | 10K ohm pull-up / pull-down resistors, jumper selectable |
| Input voltage | Vlogic = 5V |
| Logic 0 | 1.65V max |
| Logic 1 | 3.35V min |
| Output voltage | Vlogic = 5V |
| Logic 0 | 0.44V max, Iout = 24mA |
| Logic 1 | 3.76V min, Iout = -24mA |
| Input voltage | Vlogic = 3.3V |
| Logic 0 | 0.80V max |
| Logic 1 | 2.00V min |
| Output voltage | Vlogic = 3.3V |
| Logic 0 | 0.44V max, Iout = 24mA |
| Logic 1 | 2.25V min, Iout = -24mA |
| Counter/Timers | |
| A/D Timer clock | 32-bit down counter |
| General purpose | 16-bit down counter |
| Clock source | 10MHz on-board clock or external signal |
| General | |
| Bus Interface | Dual PCI (3.3V) and ISA (5V) buses supported; Autoselects for PCI bus; manual override option |
| Power supply | +5V ±5% @ 375mA typical |
| ±15V output current | ±10mA max with DACs unloaded |
| Operating temperature | -40°C to +85°C tested and guaranteed |
| Weight | 80g / 2.84oz |
| RoHS | Compliant |
Official Diamond Systems UK Distributor
Things Embedded is an official Diamond Systems UK distributor, supplying the DMM-16RP-AT as Diamond builds it and specifying it for UK PC/104-Plus control and measurement systems. It stacks on a PC/104-Plus ARIES SBC with 3.3 V PCI, and the JUPITER-MM-5000 supplies power on the same bus.
The DMM-16RP-AT belongs with our data acquisition and I/O modules, our PC/104 I/O modules and our analogue I/O boards. Where a PC/104-Plus stack needs 16 calibrated inputs and the option to run on ISA, this is the model to specify.
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