RTD/Target Catalog - RTD Embedded Technologies, Inc.
RTD/Target Catalog - RTD Embedded Technologies, Inc.
RTD/Target Catalog - RTD Embedded Technologies, Inc.
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Autonomous SmartCal <br />
<strong>RTD</strong>’s latest generation of data acquisition boards meets the ever daunting task of accurately collecting a wide range of analog signals over varying environmental conditions.<br />
<strong>RTD</strong> Autonomous SmartCal boards automatically remove uncertainties of hardware setup and drift, allowing you to focus on application development and data<br />
analysis. <strong>RTD</strong> expands on this unique approach of calibration by incorporating a high-speed DSP on our latest boards for calibration and–when it’s desirable–to execute<br />
user-specific applications.<br />
A single command from the host adjusts for all range and gain offsets in less than 300 ms, compensating for all temperature dependent analog errors associated with<br />
analog front ends. The host application does not have to tie up its processing time with calibrating and can therefore perform more important user functions. The Autonomous<br />
SmartCal algorithm is stored in the on-board DSP and is operating system independent. No special host-side software is required.<br />
On-board external Flash and internal DSP memory allow the customer the ability to create user specific applications that harness the TI2812 series DSP functionality and<br />
peripherals. These include but are not limited to Pulse Width Modulators, Timer Outputs, Capture Inputs, and Compare Outputs. The DSP offers a fast, efficient approach<br />
for calibration with the added feature of on-board processing power allowing data pre-processing which in turn saves valuable CPU time.<br />
The Advanced Digital I/O (aDIO ) port provides the user with 18 digital bits configured as eight bit-programmable and 8-bit port-programmable I/O giving you any<br />
combination of inputs and outputs. Match, event, and strobe interrupt modes mean no more wasting valuable processor time polling digital inputs. Interrupts are generated<br />
when the eight bit-programmable digital inputs match a pattern or on any value change event. Bit masking allows selecting any subgroup of the eight bits. The strobe<br />
input latches data into the bit-programmable port and generates an interrupt. The on-board EPLD can be reconfigured to harness the I/O functionality of the DSP including<br />
Pulse Width Modulator, <strong>Inc</strong>remental Encoder, A/D Converter, and the D/A Converter.<br />
Features<br />
• 12-bit resolution, 1.25 MS/s rates<br />
• TI TMS320C2812 series DSP and 4 MB external flash<br />
• Low-noise analog design, using state-of-the-art technology and layout techniques<br />
• 16 single-ended/8 differential multiplexed analog input channels<br />
• Analog input ranges: ±5, ±10, 0-10 V<br />
• Programmable gain of 1, 2, 4, 8, 16, 32, or 64<br />
• Programmable channel-gain table (CGT) 1K deep and 24 bits wide<br />
• Two fast settling 12-bit analog output channels<br />
• Analog output ranges: ±5, 0-5, ±10, 0-10 V<br />
• Advanced Digital I/O (aDIO) and 16-bit counter/timers<br />
• Calibration of all analog A/D and D/A sections in less than 300 ms<br />
• Analog outputs set to known state during calibration<br />
• On-board sensor which can be used in temperature dependent calibration<br />
• EEPROM to store factory default values and the last calibrated data values<br />
• Advanced interrupt capabilities<br />
• High speed McBSP serial port interface to dspModules<br />
• SyncBus for multi-board simultaneous sampling<br />
• Available in PC/104-Plus and PCI-104<br />
-40<br />
-30<br />
Temperature (°C)<br />
At each 10°C temperature increment, and in less than 300 ms, the Autonomous<br />
SmartCal board calibrates its analog section before digitizing a known voltage<br />
input. Each point on the graph shows how the measured value differs from the<br />
known value in Least Significant Bits (LSB). Accuracy is within ±½ LSB.<br />
<strong>RTD</strong>’s operating system independent, unique Autonomous SmartCal sets a<br />
new industry standard for data acquisition precision and accuracy over a wide<br />
temperature range.<br />
Real World<br />
PCI Bus<br />
Deviation (LSB)<br />
Temperature<br />
Sensor<br />
3<br />
2<br />
1<br />
0<br />
-1<br />
-2<br />
-3<br />
Deviation from Known Value vs Temperature<br />
High Speed<br />
Serial Port<br />
FPGA<br />
-20<br />
PCI<br />
Interface<br />
-10<br />
0<br />
10<br />
20<br />
30<br />
Calibration<br />
Data EEPROM<br />
TI 2812<br />
Series DSP<br />
8K FIFO<br />
40<br />
50<br />
60<br />
Analog/ADC<br />
70<br />
80<br />
Offset/Gain<br />
Calibration<br />
Circuitry<br />
PC/104-Plus<br />
SDM7540HR<br />
PCI-104<br />
SDM8540HR<br />
8K CGT<br />
40 MByte<br />
Flash<br />
8K FIFO<br />
8K FIFO<br />
DAC1/Analog<br />
DAC2/Analog<br />
Real World<br />
26 “MIL Value for COTS Prices” | www.rtd.com