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AWG16: 16 bit 400 MHz Arbitrary Waveform Generator
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AWG16
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The AWG16 is a 16 bit Arbitrary Waveform Generator for high-speed / high resolution waveform generation. The fully differential signal path from the DAC all the way to the outputs ensures an exceptional high signal quality. Despite the emphasis on signal quality the AWG16 also has a very good DC accuracy.
The module features differential outputs with a programmable common-mode voltage. For single ended applications the positive output as well as the negative output can be used. The clock can come from the backplane or from the front panel.
The module has 8 output ranges starting at 0.48Vpp up to 5.12Vpp, which covers a wide range of Unit Under Test input voltages.
A filter-bank with 3 Low Pass filters (15MHz, 30MHz, and 60MHz) provide excellent signal conditioning to obtain the best possible signal integrity.
The Module uses a self calibrating DAC which results is an excellent SNR, THD and linearity. For DC levels there are various calibration DACs that allows an unsurpassed DC accuracy for a high speed module. The unit is an excellent choice for sine wave generation as well as high speed linear ramp generation. With 8M-word (16M-byte) of memory very complex signal shapes can be generated.
All these features ensure a very accurate result when performing analog measurements. The unit is very suitable for testing ADC linearity and dynamic performance.
Block diagram
Specifications
conditions: after 1 hour warm-up, TA=25°C, filter bypass unless otherwise mentioned
General
| Resolution | 16 bit |
| Update rate | DC - 400MHz |
| Pattern depth | 8M words |
Output characteristics
| Output impedance | 50Ω |
| Ranges Single Ended (Vpp into open circuit) | 0.48V, 0.64V, 0.96V, 1.28V, 1.92V, 2.56V, 3.84V, 5.12V |
| Ranges differential (Vpp into open circuit) | 0.96V, 1.28V, 1.92V, 2.56V, 3.84V, 5.12V, 7.68V, 10.24V |
| Output filters (3 pole Butterw.) | Bypass, 15MHz, 30MHz, 60MHz |
| Bandwidth, -3dB (typical) | 120MHz (excl. sinx/x effect) |
| 0.1dB flatness (typical) | 30MHz (excl. sinx/x effect) |
| Output configuration | Differential, Single Ended, 50Ω |
| Output operating range | +/- 5.12V |
Accuracy (filter bypass)
| Absolute accuracy | ±(500μV + 0.08% of range) |
| Non Linearity | ±0.003% of range |
| Temperature drift (typical) | ±(10ppm of range + 20ppm of value)/°C |
Common mode voltage source
| Voltage range | -2.56V to +2.56V |
| DC-offset accuracy | ±(200μV + 0.002% of value) |
| Non Linearity | ±100ppm of range |
Dynamic characteristics
(2.5Vpp diff. output signal, 200Msps, BW DC-100MHz)
| SNR (fout=1MHz) | 70dB |
| SNR (fout=10MHz) | 68dB |
| THD (fout=1MHz) | -87dB |
| THD (fout=10MHz) | -82 dB |
| SFDR (fout=1MHz) | 88 dB |
Clock input
| Input impedance | 50Ω |
| Threshold level | 0V / 1V |
Trigger input
| Input impedance | 1kΩ |
| Input level | 0V / 1V |