A render of the Calibri EX card.
Calibri EX
4 GS/s, 16-bit data acquisition for research and production
Calibri EX converts analog signals to digital data, stores the data, and runs real-time signal processing such as filtering and noise reduction.
What Calibri EX does
Capture and playback
Calibri EX converts analog signals to digital data and stores the data in digital format. It also plays digital data back as analog signals.
Real-time processing
The card runs digital signal processing in real time. It handles correlation, search, filtering and noise reduction.
FPGA and DDR4 memory
FPGA logic does the processing. DDR4 memory holds the data for fast input and output, and a PCI Express link carries it to the host.
Options
Options add 32 digital I/O lines and support for an RGB LCD screen with capacitive touch. The OEM version runs as a standalone unit on a single 12 V supply.
We built Calibri EX in February 2016 to advance our research in power electronics and power quality. The University of North Carolina at Chapel Hill used it in neuroscience and physics research.
Specifications
Analog input
| Parameter | Calibri EX |
|---|---|
| Channels | 4, differential |
| Sample rate | 4 GS/s on 1 channel, 2 GS/s each on 2 channels or 1 GS/s each on 4 channels, sampled simultaneously |
| Resolution | 16 bits |
| DNL | No missing codes |
| Minimum sample rate | No minimum |
| Timing resolution | 0.5 ns |
| Timing accuracy | 50 ppm of sample rate |
| Maximum working voltage | ±4.5 V on AI+ and AI−, all ranges, Measurement Category I |
| Caution | Do not use for measurements within Measurement Categories II, III or IV |
| Bandwidth, single-ended | 480 MHz |
| THD | −92 dBFS |
| CMRR at 60 Hz | 95 dB |
| Input impedance, single-ended | 50 Ω in parallel with 2 pF, device on or off |
| Input impedance, differential | 4600 Ω, device on or off |
| Crosstalk at 100 kHz | −80 dB adjacent channels, −100 dB non-adjacent channels, with proper wiring |
| Overvoltage protection | ±4.5 V with the device on, ±10 V with the device off |
| Input FIFO | 1 G samples shared among the channels in use, plus an optional 0.5 G samples |
| Analog triggers | 1 per channel, from the AIT input |
| Trigger functions | Start, reference and pause triggers, sample clock, sample clock timebase, math-based, DIO and PCI Express bus triggering |
| Trigger modes | Analog edge, analog edge with hysteresis, analog window |
| Trigger level | ± full scale |
| Trigger bandwidth (−3 dB) | 2 GHz |
| Trigger accuracy | ±0.1% of range |
Analog output
| Parameter | Calibri EX |
|---|---|
| Option 1 | 10 channels, 16 bits, 1.2 GS/s per channel, simultaneous |
| Option 2 | 2 channels, 18 bits |
| Added channels, either option | 2 channels, 16 bits |
| DNL | ±1 LSB maximum |
| Monotonicity | 16 bits (Option 1), 18 and 16 bits (Option 2) |
| Minimum update rate | No minimum |
| Timing accuracy | 50 ppm of sample rate |
| Timing resolution | 0.6 ns, main outputs |
| Output coupling | DC |
| Output impedance | 0.4 Ω |
| Output current drive | ±150 mA |
| Overdrive protection | ±25 V |
| Overdrive current | 10 mA |
| Power-on state | ±5 mV |
| Power-on and power-off glitch | 1.5 V peak for 200 ms |
| Output FIFO | Up to 1.5 G samples shared among the channels in use |
| Waveform modes | Non-periodic waveform, periodic regeneration from the onboard FIFO, periodic regeneration from a host buffer with dynamic update, direct math result from the AI channels, FPGA simulation |
| Slew rate | 20 V/µs or better |
Digital I/O
| Parameter | Calibri EX |
|---|---|
| Channels | 32 |
| Direction | Each terminal programmable as input or output |
| Ground reference | D GND |
| Pull-down or pull-up resistor | 100 kΩ typical, to +3 V or GND |
| Absolute maximum input | ±20 V on up to two pins |
| Caution | Stresses beyond the specification can damage the channel or the whole device |
| Port and sample size | Up to 32 bits, DIO port 0 |
| Waveform generation (DO) FIFO | Up to 5 M samples |
| Waveform acquisition (DI) FIFO | Up to 5 M samples |
| Digital line filter setting | 160 ns |
| Positive-going threshold (VT+) | 2.2 V maximum |
| Negative-going threshold (VT−) | 0.8 V minimum |
| Hysteresis (VT+ − VT−) | 0.2 V minimum |
| Input low current (VIN = 0 V) | −10 µA maximum |
| Input high current (VIN = 5 V) | 250 µA maximum |
| Input high voltage (VIH) | 2.2 V to 5.25 V |
| Input low voltage (VIL) | 0 V to 0.8 V |
| Output high current (IOH) | 50 mA maximum |
| Output low current (IOL) | 24 mA maximum |
| Display (option) | RGB LCD interface with capacitive touch |
Bus and power
| Parameter | Calibri EX |
|---|---|
| Host link | PCI Express |
| USB | USB 2.0 at 480 Mb/s |
| Ethernet | 10 or 100 Mb/s |
| DMA channels | 4 |
| Processing | FPGA with user-configurable logic |
| Memory | DDR4, for fast input and output |
| OEM option | Standalone DAQ on a single 12 V supply, programmed on the PCI bus or through JTAG |
| Adapters | Desktop PCs, CompactPCI racks, VPX systems or an external standalone box |
| Power | +12 V, 50 W typical |
| Fuse | Self-resetting, opens when the current exceeds the specification |
| Caution | The protection the device provides can be impaired if it is used in a manner not described |
Physical and environment
| Parameter | Calibri EX |
|---|---|
| I/O connectors, options included | PCI Express, BNC, differential BNC, USB-B (USB 2.0), RJ-45 and other connectors |
| Display connector | 40-pin, 0.5 mm pitch |
| Digital I/O connector | 40-pin, 0.5 mm pitch |
| Recommended warm-up time | 15 minutes |
| Calibration interval | 1 year |
| Operating temperature | 0 to 55 °C |
| Storage temperature | −40 to 70 °C |
| Operating humidity | 10 to 80% RH, noncondensing |
| Storage humidity | 5 to 85% RH, noncondensing |
| Pollution degree | 2 |
| Maximum altitude | 2,000 m |
| Use | Indoor use only |
| EMC | This product design has not been tested to EMC standards |
Figures are typical at 25 °C unless noted. Source: Calibri EX specification v005, April 2017.
The absolute accuracy tables are not shown. The 2017 sheet marks their final parameters as to be determined.