The DMM-16RP-AT features top performance and flexibility for a mid-range price. It has 16 single-ended / 8 differential analog voltage inputs with both unipolar and bipolar input ranges, programmable gain, and a maximum sampling rate of 100KHz. The 4 D/A channels and 16 digital I/O lines provide additional real-world control and monitoring capability.
The full −40 to +85°C industrial temperature operation ensures reliable and accurate performance in any embedded system application. A fully-featured software library with example programs and a graphical user interface completes the solution to make the DMM-16RP-AT a solid choice for PC/104-Plus embedded systems requiring analog I/O.
DMM-16RP-AT is implemented as a PC/104-Plus board, however it features a novel dual bus interface. Both ISA and PCI connectors are installed and connected to the FPGA. The board will autoselect the PCI bus when present, however a jumper can be used to disable the PCI bus and force the board into ISA bus mode if desired.
This allows the board to be used in both PCI and ISA bus PC/104 systems (assuming the PCI-104 connector does not pose a mechanical interference problem with other boards in the system). The board uses 3.3V signaling on the PCI bus and must be used only with 3.3V PCI bus SBCs. The ISA bus uses the standard 5V logic levels.
Technical specifications | |
Analog Inputs |
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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 interupt 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 |
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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 |
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Number of lines | 16, organized 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 |
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A/D Timer clock | 32-bit down counter |
General purpose | 16-bit down counter |
Clock source | 10MHz on-board clock or external signal |
General |
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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 |
Weight | 80g / 2.84oz |
Environmental and physical specifications |
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Operating Temperature | 40°C to +85°C tested and guaranteed |
RoHS | Compliant |
Model | Description |
DMM‑16RP‑AT | Diamond-MM Autocalibrating 16-ch 16-bit A/D +4-ch 12-bit D/A Extended Temp. PCI Bus |
C-50-18 | 50-conductor .1" pitch 18" ribbon cable Data Acquisition |