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The Stanford Research Systems DS340 is a 15 MHz function and arbitrary waveform generator based on Direct Digital Synthesis (DDS). It produces sine and square waves at frequencies up to 15.1 MHz, ramps and triangles up to 100 kHz, and includes a 10 MHz Gaussian white-noise generator. Frequency resolution is 1 µHz for every function, and the combination of features, performance, and low cost suits the DS340 to a variety of test and measurement applications.
A function and arbitrary waveform generator supplies the known, controllable stimulus signals that bench and automated measurements depend on. Beyond its standard waveform set, the DS340 offers phase-continuous frequency sweeps for characterizing response over a band, FSK modulation for toggling between two preset frequencies, and downloadable arbitrary waveforms for reproducing custom signal shapes.
ValueTronics stocks and holds its own inventory in a 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned unit is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer.
| Specification | Value |
|---|---|
| Frequency Range | |
| Sine, max. frequency | 15.1 MHz |
| Square, max. frequency | 15.1 MHz |
| Ramp, max. frequency | 100 kHz |
| Triangle, max. frequency | 100 kHz |
| Noise | 10 MHz (Gaussian weighting) |
| Arbitrary | 10 MHz, 40 MHz/N (sample rate) |
| Frequency resolution (all functions) | 1 µHz |
| Output | |
| Source impedance | 50 Ω |
| Grounding | Output may float up to ±40 V (AC + DC) |
| Amplitude range | 50 mVpp to 10 Vpp into 50 Ω, 100 mVpp to 20 Vpp into Hi-Z |
| Amplitude resolution | 3 digits (DC offset = 0 V) |
| Offset | ±5 VDC (50 Ω), ±10 VDC (Hi-Z) |
| Offset resolution | 3 digits |
| Accuracy | 0.1 dB (sine output) |
| Sine Wave | |
| Spurious response | < −65 dBc to 1 MHz (increasing by 6 dB/oct above 1 MHz) |
| Harmonic distortion, DC to 20 kHz | < −70 dBc |
| Harmonic distortion, 20 kHz to 100 kHz | < −60 dBc |
| Harmonic distortion, 100 kHz to 1 MHz | < −50 dBc |
| Harmonic distortion, 1 MHz to 15 MHz | < −40 dBc |
| Phase noise | < −55 dBc (30 kHz band centered on carrier) |
| Square Wave | |
| Rise/fall time | <15 ns ± 5 ns (10 % to 90 %) |
| Asymmetry | <3 ns + 1 % of period |
| Overshoot | <2 % (full-scale output) |
| Ramps and Triangles | |
| Rise/fall time | 45 ns (10 MHz Bessel filter) |
| Linearity | ±0.1 % of full scale |
| Settling time | 200 ns (0.5 % of final value) |
| Arbitrary Waveforms | |
| Sample rate | 40 MHz or integer sub-multiples |
| Waveform length | 8 to 16,300 points |
| Vertical resolution | 12 bits |
| Rise/fall time | 45 ns (10 MHz Bessel filter) |
| FSK Modulation | |
| Modes | Internal, External |
| Max. rate | 50 kHz, internal |
| External FSK | TTL input, 1 MHz (max.) |
| Sweeps | |
| Type | Linear and logarithmic (phase continuous) |
| Span | Linear (full frequency range), log (6 decades) |
| Sweep rate | 0.01 Hz to 1 kHz |
| Timebase Accuracy | |
| Standard | ±5 ppm (20 °C to 30 °C) |
| Optional | TCXO, 2 ppm stability, 2 ppm aging (20 °C to 50 °C) |
| General | |
| Interfaces | Optional RS-232 and GPIB with DOS based arbitrary waveform software (AWC). All instrument functions can be controlled over interfaces. |
| Non-volatile memory | Up to nine sets of instrument settings can be stored and recalled. |
| Dimensions | 8.5" × 3.5" × 13" (WHD) |
| Weight | 8 lbs. |
| Power | 35 W, 100/120/220/240 VAC, 50/60 Hz |
| Warranty | One year parts and labor on defects in materials and workmanship |
Important: Output may float up to ±40 V (AC + DC).
Important: Arbitrary waveforms (up to 16,300 points) can be downloaded to the DS340's waveform memory only via the optional GPIB or RS-232 interfaces (Option 01); these interfaces and the arbitrary waveform software are not included with the standard instrument and must be ordered separately.
This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.
ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Stanford
Condition
Pre-Owned
Manufacturer
Stanford Research Systems
Func_gen_freq
15.1 MHz
30+ Years in Business
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30+ Years in Business
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Sell Test Equipments
Knowledgeable Staff
On-site Lab
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