SPECIFICATIONS
Models 2020 & 2000 Model 2045 Model 2040
Analog Output High level output with attenuator,
Configuration offset, and noise source • Low level output • True low level output
• High level output with attenuator • Inverted low level output
and offset
Data Point Update Rate 100 MHz on Version 100 800 MHz down to 50 Hz (1.25 ns to 20 ms/point)
Internal Clock 25 MHz on Version 25 Accuracy: ± 0.005% @ ≤ 100 MHz, ±0.025% @ > 100 MHz
0.0015 Hz min. (687s) Jitter: < 15 ps RMS @ > 3 MHz, <75 ps RMS @ < 3 MHz
Accuracy: 50 ppm Optional 1000 MS/s using External Clock
Frequency resolution: ≤ 0.05%
External Clock DC to 100 MHz on Version 100 50 to 250 MHz with EXT CLK
DC to 25 MHz on Version 25 50 to 800 MHz with ECL CLK
ANALOG OUTPUTS Models 2020 & 2000 High Level Output Low Level Output(s)
(Model 2045 only) (2045 & 2040)
Analog Resolution 12 bits 8 bits 8 bits with output 0.5 to 1V p-p
Maximum Amplitude 10V p-p into 50Ω, 20V p-p open circuit 5V p-p into 50Ω, 10V p-p open circuit 1V p-p into 50Ω, 2V p-p open circuit
Amplitude Range 10V to 5 mV p-p in 0.024% steps, 5V to 3 mV p-p in 0.024% steps with 1V to 0.5V p-p in <0.3 mV steps with
with waveform resolution preserved waveform resolution preserved waveform resol. preserved
Amplitude Accuracy ± 1% ± 3% ± 2% at 0.8V p-p output, ± 3% at 1V,
(attenuator accuracy: ± 1% ) Model 2040 (±4%, Model 2045)
Non-Linearity ± 0.025% integral < 0.22% differential < 0.22% differential
< 1% integral < 0.44% integral
DC Drift ± (0.06% of p-p signal + 0.2 mV)/°C ± 2.0 mV/°C ± 0.4 mV/°C
DC Offset Control (user 0 to ± 5V in 1.25 mV steps 0 to ± 3.5V in 2 mV steps 0 to ± 0.5V; Accuracy: ± 2% at
selected or internally Accuracy: ± 2% ± 10 mV Accuracy: ± 2% ± 10 mV 1V p-p output, Model 2040
compared) ±(0.8% x waveform peak-peak) (± 4%, 2045) ± 3 mV
Output Compliance — — -1.4 to 1.1V with ext. applied offset
FS Step Response
Rise and Fall Time < 10 ns < 2.2 ns, DC offset = 0 ±2V < 500 ps
(10-90%) < 3.3 ns, DC offset = 0 ±3.5V
Overshoot < 1% < 3% < 7%
Settling Time < 60 ns to within 1% of final value < 50 ns to within 2% of final value < 7 ns to within 1% of final value
Amplitude Flatness ± 0.1 dB from DC to 500 kHz ± 0.24 dB from DC to 1 MHz ± 0.2 dB from DC to 10 MHz
± 1.5 dB to 25 MHz ± 0.5 dB, 1–10 MHz ± 1.0 dB, 10–100 MHz
–3 dB to 35 MHz ± 1.0 dB, 10–30 MHz ± 2.0 dB, 100–200 MHz
± 2.5 dB, 30–100 MHz
Output Bandwidth > 35 MHz > 160 MHz, 200 MHz typical > 700 MHz, 1000 MHz typical
Output Low-Pass Filters 20 kHz to 20 MHz selectable 2 or 20 MHz selectable —
Sinewave Purity < –60 dBc below 100 kHz < –40 dBc, DC to 10 MHz < –46 dBc, DC to 10 MHz
(harmonic amplitude < –50 dBc below 1 MHz < –30 dBc, 10–30 MHz < –25 dBc, 10–30 MHz
and spurious signals) < –40 dBc below 3.125 MHz, < –20 dBc, 30–100 MHz < –15 dBc, 30–100 MHz
Version 25 (DC offset = 0 ± 2V; (at higher frequencies aliased
< –35 dBc below 6.25 MHz, for offset > 2V add 10 dBc) spectra are dominant)
Version 100
< 0.5 mV RMS, < 4 mV pk at max. < (0.1% Vo p-p + 0.6 mV) RMS < 1.5 mV RMS
Residual Noise signal output < (0.2% Vo p-p + 4 mV) p-p < 6 mV p-p
DAC Glitch Energy < 500 mV-ns for clock ≥ 40 ns < 125 pV-s at max. signal output level < 25 pV-s
< 750 mV-ns for clock < 40 ns 2.5 ns effective width, typ. 0.5 ns effective width, typ.
at max. signal output level
5 to 10 ns effective width
Output Impedance 50Ω ± 2%, active; >10 MΩ, inactive 50Ω ± 10% 50Ω ± 10%
Output Protection No damage from a short circuit or Indefinite short circuit to ground Up to ± 100 mA externally applied
connection of 125 VAC at 50/60 Hz (clamping diodes at ± 2V)
Models 2020 and 2000 Models 2040 and 2045
MEMORY & PROCESSING
Waveform Output Up to 512K 16-bit data points, segmentable to 512K data points (2048K, B version),
Memory (RAM) hold multiple downloaded waveforms segmentable to hold multiple downloaded waveforms
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