# Stanford Research Systems DS360 Ultra-Low Distortion Function Generator (Pre-Owned) # Stanford Research Systems DS360 Ultra-Low Distortion Function Generator (Pre-Owned) ## Key Features At A Glance - Better than −100 dBc distortion to 20 kHz; less than 0.001% THD via DDS and a 20-bit D/A converter - Frequency range of 10 mHz to 200 kHz with 6-digit frequency resolution - 25 ppm (0.0025%) frequency accuracy and stability across the full range - Sine, square, and two-tone (SMPTE, DIM, CCIF) outputs plus white, pink, and band-limited noise - Balanced and unbalanced outputs via floating BNC, XLR, and dual banana jacks - Output amplitude to 80 Vpp balanced / 40 Vpp unbalanced (Hi-Z), down to 10 µVpp - Linear and logarithmic frequency sweeps with sine and square tone bursts - GPIB (IEEE-488.2) and RS-232 interfaces; fully programmable for automated testing The Stanford Research Systems DS360 is a low-distortion synthesized function generator that combines the low-distortion performance of an analog source with the precision of direct digital synthesis (DDS). With less than 0.001% total harmonic distortion, 25 ppm frequency accuracy, and a broad feature set that includes sweeps and bursts, it is designed as a source for audio frequency applications. A function generator produces known, controllable test signals used to stimulate a device under test so its response can be measured. The DS360 is built for audio research and development, manufacturing, and automated testing. Its two-tone signal supports intermodulation distortion (IMD) testing, generating standard two-tone formats including SMPTE, DIM, and CCIF. ValueTronics stocks and holds its own inventory in a 20,000 square foot secure warehouse at 1675 Cambridge Drive, 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. ## Product Core & Specifications Specification Value Sine Frequency range 0.01 Hz to 200.000 kHz THD (1 Vrms unbalanced, 2 Vrms balanced), <5 kHz −110 dB (typ.), −106 dB (max.) THD (1 Vrms unbalanced, 2 Vrms balanced), 5 to 20 kHz −104 dB (typ.), −100 dB (max.) THD (1 Vrms unbalanced, 2 Vrms balanced), 20 to 40 kHz −100 dB (typ.), −96 dB (max.) THD (1 Vrms unbalanced, 2 Vrms balanced), 40 to 100 kHz −90 dB (typ.), −85 dB (max.) THD (1 Vrms unbalanced, 2 Vrms balanced), 100 to 200 kHz −76 dB (typ.), −68 dB (max.) THD (10 Vrms unbalanced, 20 Vrms balanced), <5.0 kHz −109 dB (typ.), −105 dB (max.) THD (10 Vrms unbalanced, 20 Vrms balanced), 5 to 20 kHz −103 dB (typ.), −99 dB (max.) THD (10 Vrms unbalanced, 20 Vrms balanced), 20 to 40 kHz −98 dB (typ.), −93 dB (max.) THD (10 Vrms unbalanced, 20 Vrms balanced), 40 to 100 kHz −88 dB (typ.), −83 dB (max.) THD (10 Vrms unbalanced, 20 Vrms balanced), 100 to 200 kHz −76 dB (typ.), −68 dB (max.) Square Frequency range 0.01 Hz to 200 kHz Rise time 1.3 µs Even harmonics < −60 dBc (to 20 kHz) White Noise Bandwidth DC to 200 kHz Flatness <1.0 dB, 1 Hz to 100 kHz Crest factor 11 dB Pink Noise Bandwidth 10 Hz to 200 kHz Flatness <3.0 dB (20 Hz to 20 kHz) (measured using 1/3 oct. analysis) Crest factor 12 dB Bandwidth Limited Noise Bandwidth 100 Hz, 200 Hz, 400 Hz, 800 Hz, 1.6 kHz, 3.2 kHz, 6.4 kHz, 12.8 kHz, 25.6 kHz, 51.2 kHz, 102.4 kHz Center frequency 0 Hz to 200.0 kHz (200 Hz increments) Flatness (in band) <1.0 dB Crest factor (Baseband) 12 dB (0 Hz center frequency) Crest factor (Non-baseband) 15 dB Two-Tone Type Sine-sine, sine-square Sine frequency 0.01 Hz to 200 kHz Square frequency 0.1 Hz to 5 kHz Square resolution 2 digits SFDR \>90 dB Sine or Square Burst On cycles 0.5, 1 to 65534 cycles Repetition rate 1 to 65535 cycles Triggering Internal, external, single-shot, externally gated Off level 0.0 % to 100.0 % (of on level) Off resolution 0.1 % Max. off attenuation −90 dBc (1 kHz), −70 dBc (10 kHz), −50 dBc (100 kHz) White or Pink Noise Burst On time 10 µs to 599.9 s Repetition time 20 µs to 600 s Triggering Internal, external, single-shot, externally gated Off level 0.0 % to 100.0 % (of on level) Resolution 0.1 % Sine or Square Sweep Type Linear or logarithmic Range 0.01 Hz to 200.000 kHz Rate 0.1 Hz to 3.1 kHz Resolution 2 digits Flatness ±0.1 dB (1 %) Frequency Resolution 6 digits or 10 mHz (whichever is greater) Accuracy 25 ppm (0.0025 %) + 4 mHz (20 °C to 40 °C) Amplitude Unbalanced outputs 5.0 µVpp to 14.4 Vpp (50 Ω load); 5.0 µVpp to 20.0 Vpp (600 Ω load); 10.0 µVpp to 40.0 Vpp (Hi-Z load) Balanced outputs 10 µVpp to 28.8 Vpp (50 Ω load); 10 µVpp to 28.8 Vpp (150 Ω load); 10 µVpp to 40.0 Vpp (600 Ω load); 20 µVpp to 80.0 Vpp (Hi-Z load) Resolution 4 digits or 1 µV, whichever is greater (Vpp or Vrms), 0.1 dB (dBm or dBV) Accuracy ±0.1 dB (1 %) Noise (broadband, 1 kHz sine into Hi-Z), <12.6 mVpp <4 nV/√Hz Noise (broadband), 12.6 mVpp to 126 mVpp <7.5 nV/√Hz Noise (broadband), 126 mVpp to 1.26 Vpp <15 nV/√Hz Noise (broadband), 1.26 Vpp to 40 Vpp <150 nV/√Hz Offset Unbalanced output 0 to ±7.4 VDC (50 Ω load); 0 to ±10.0 VDC (600 Ω load); 0 to ±20.0 VDC (Hi-Z load) Balanced output Not active Resolution 3 digits Accuracy (all except pink noise) 1 % ± 25 mV (Vp + offset > 0.63 V); 1 % ± 2.5 mV (0.63 V > Vp + offset > 0.063 V); 1 % ± 250 µV (63 mV > Vp + offset > 6.3 mV); 1 % ± 25 µV (Vp + offset < 6.3 mV) Accuracy (pink noise) 1 % ± 200 mV (Vp + offset > 0.63 V); 1 % ± 20 mV (0.63 V > Vp + offset > 0.063 V); 1 % ± 2 mV (63 mV > Vp + offset > 6.3 mV); 1 % ± 200 µV (Vp + offset < 6.3 mV) Outputs Configuration Balanced and unbalanced Connectors Floating BNCs, banana plugs and XLR jack Source impedance (Balanced) 50 Ω ± 3 %; 150 Ω ± 2 %; 600 Ω ± 1 %; Hi-Z (50 Ω ± 3 %) Source impedance (Unbalanced) 50 Ω ± 3 %; 600 Ω ± 1 %; Hi-Z (25 Ω ± 1 Ω) Floating voltage ±40 VDC (max.) Other Outputs Sync TTL level (same frequency and phase as output) Burst out TTL pulse marks burst (TTL high for ON time) Trigger/gate in TTL pulse starts sweep or burst; TTL high activates gated burst Sweep TTL pulse marks beginning of sweep General Computer interfaces GPIB and RS-232. All instrument functions can be controlled. Size 17" × 3.5" × 16.25" (WHD) Weight 17 lbs. Power 50 W, 100/120/220/240 VAC, 50/60 Hz Warranty One year parts and labor on defects in materials and workmanship > **Important:** Maximum floating voltage: ±40 VDC. ## About this Pre-Owned unit 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. - Warranty included - Functional verification included - Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data. - Note that unnecessary accessories may not be included (contact Test Architect to confirm). 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.** ## Details - **Price:** 0.0 USD - **Vendor:** Stanford Research Systems - **Type:** Gen Oth - **Tags:** DS360, Func Gen, Inc., Manufacturers, Model 360, Other, Pre-Owned, product_manual_group_1, Product_used, Signal Generators, Stanford Research, Stanford Research Systems, Updated Item Review ## Variants | Variant | Price | Available | |---------|-------|-----------| | None | 0.00 USD | In stock | | NIST Traceable | 0.00 USD | In stock | | NIST Traceable with Full Data | 0.00 USD | In stock | | ISO IEC 17025 Accredited | 0.00 USD | In stock | ## Images - DS360 Stanford Research Generator --- > Source: [ValueTronics](https://valuetronics.com/products/ds360-stanford-research-generator-used) > Updated: 2026-06-03