AWG16 – 16 Bit / 400 MS/s Arbitrary Waveform Generator
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 0.48 Vpp up to 5.12 Vpp, which covers a wide range of Unit Under Test input voltages.

A filter-bank with 3 Low Pass filters (15 MHz, 30 MHz, and 60 MHz) 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

AWG16 – 16 Bit / 400 MS/s Arbitrary Waveform Generator

Key Features

  • 400 MHz max sample speed
  • 16 bit resolution
  • Differential outputs
  • 8 output ranges
  • Selectable filters to improve signal quality
  • -95 dB THD typical at 1 MHz
  • 73 dB SNR typical
  • Programmable common mode voltage
  • For ATX series hardware platform

Technical Specifications

General

Resolution 16 bit
Update rate DC - 400 MHz
Pattern memory depth 8M words

Output characteristics

Output impedance 50 Ohm
Ranges Single Ended (Vpp into open circuit) 0.48 V, 0.64 V, 0.96 V, 1.28 V, 1.92 V, 2.56 V, 3.84 V, 5.12 V
Ranges differential (Vpp into open circuit) 0.96 V, 1.28 V, 1.92 V, 2.56 V, 3.84 V, 5.12 V, 7.68 V, 10.24 V
Output filters (3 pole Butterw.) Bypass, 15 MHz, 30 MHz, 60 MHz
Bandwidth, -3 dB (typical) 120 MHz (excl. sinx/x effect)
0.1 dB flatness (typical) 30 MHz (excl. sinx/x effect)
Output configuration Differential, Single Ended, 50 Ohm
Output operating range +/- 5.12 V

Accuracy (filter bypass)

Absolute accuracy ±(500 µV + 0.08 % of range)
Non Linearity ±0.003 % of range
Temperature drift (typical) ±(10 ppm of range + 20 ppm of value)/ºC

Common mode voltage source

Resolution ≤100 µV
Voltage range -2.56 V to +2.56 V
DC-offset accuracy ±(200 µV + 0.02 % of value)
Non Linearity ±0.01 % of range

Dynamic characteristics

(2.5 Vpp diff. output signal, 200 MS/s, BW DC-100 MHz)

SNR (fout = 1 MHz) 70 dB
SNR (fout = 10 MHz) 68 dB
THD (fout = 1 MHz) -87 dB
THD (fout = 10 MHz) -82 dB
SFDR (fout = 1 MHz) 88 dB

Clock input

Input impedance 50 Ohm
Threshold level 0 V or 1 V (programmable)
Input level around threshold ±100 mV to ±2 V (±4 V max.)
Jitter from clock-in to f-out 110 fs (typical, f-out = 100 MHz, jitter BW = 1 kHz - 10 MHz)

Trigger input

Input impedance 1 kOhm
Input level 0 V or 1 V (programmable)
Input level around threshold ±100 mV to ±2 V (±4 V max.)