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The HP 3245A Universal Source is a synthesized signal source that combines precision DC voltage and current output, synthesized AC waveform generation, and arbitrary waveform capability in a single 3.5-inch tall instrument. As described in its product documentation, the 3245A is designed to serve as a versatile bench source while also fitting into computer-aided test systems, providing the capabilities of AC, DC, ARB, and second-channel options in one chassis.
Listed applications include testing A/D converters, voltage-to-frequency converters, VCOs, transducers, and other equipment that requires a highly accurate DC voltage or current source. The arbitrary waveform capability supports modem testing, tone-sequence generation, DTMF generation, and FSK generation, particularly when the optional second channel is installed. The instrument is positioned for use both as a standalone bench source and as a component in automated test systems.
ValueTronics International has specialized in new and pre-owned electronic test equipment since 1992, with operations centered at our 20,000 square foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every pre-owned instrument we offer is inspected and tested by our in-house technical team before it is listed, and each unit ships with documentation that reflects what was actually measured rather than what was assumed. For buyers who need a working, supported HP 3245A for an existing test fixture or development bench, this in-house verification is the difference between a documented purchase and an unverified gamble.
The HP 3245A was originally manufactured by Hewlett-Packard's test and measurement division. In 1999, that division was spun off as Agilent Technologies, and in 2014 the electronic measurement portion of Agilent was transferred to Keysight Technologies. Instruments carrying the HP brand on the front panel, including the 3245A, trace through this corporate lineage and are sometimes referenced in customer test procedures under any of the three names.
| DC Volts Output | |
|---|---|
| High-resolution (24-bit) mode | |
| Range | 0 Ω Mode Resolution / 50 Ω Mode Resolution |
| 1 V | 1 µV / 0.5 µV |
| 10 V | 10 µV / 5 µV |
| Low-resolution (12-bit) mode | |
| 0.078125 V | — / 40 µV |
| 0.15625 V | 79 µV / 79 µV |
| 0.3125 V | 157 µV / 157 µV |
| 0.625 V | 313 µV / 313 µV |
| 1.25 V | 625 µV / 625 µV |
| 2.5 V | 1250 µV / 1250 µV |
| 5 V | 2.5 mV / 2.5 mV |
| 10 V | 5.0 mV / — |
| Current compliance | 100 mA on all ranges |
| Settling time (Delay 0) | |
| High-resolution: 0.1% of step | 20 ms |
| High-resolution: 0.001% of step | 40 ms (1 s if function changed) |
| Low-resolution: 0.1% of step (0 Ω Mode) | 100 µs |
| Low-resolution: 0.1% of step (50 Ω Mode) | 25 µs |
| Low-resolution: 0.5% of step (50 Ω Mode) | 5 µs |
| Overshoot (High-res) | < 5% of step + 0.15% of range |
| Overshoot (Low-res) | < 30% of step + 2% of range |
| DC Volts Accuracy (<10 Hz noise): ± (% of programmed output + volts), impedance mode, >1 MΩ load. Tcal 18°C to 28°C. One hour warm-up. | |
| 24 Hour, Tcal ±1°C, 10 V High-Res | 0.0007% + 85 µV |
| 24 Hour, Tcal ±1°C, 1 V High-Res | 0.0008% + 15 µV |
| 24 Hour, Tcal ±1°C, Low-Res (all ranges) | 0.09% of output + 0.02% of range |
| 90 Day, Tcal ±5°C, 10 V High-Res | 0.0036% + 180 µV |
| 90 Day, Tcal ±5°C, 1 V High-Res | 0.0042% + 31 µV |
| 90 Day Low-Res 10 V | 0.17% + 37 mV |
| 90 Day Low-Res 5 V | 0.17% + 19 mV |
| 90 Day Low-Res 2.5 V | 0.17% + 9.2 mV |
| 90 Day Low-Res 1.25 V | 0.17% + 4.6 mV |
| 90 Day Low-Res 0.625 V | 0.17% + 2.5 mV |
| 90 Day Low-Res 0.3125 V | 0.17% + 1.3 mV |
| 90 Day Low-Res 0.15625 V | 0.17% + 0.73 mV |
| DC Volts Accuracy with Option 002 | Ninety-day accuracy in low-resolution mode is ±(0.2% of output + 370 mV) for 10-volt range (10x amplifier; 100 volts output) |
| DC Current Output Resolution | |
| 0.1 mA | High: 0.1 nA / Low: 50 nA |
| 1 mA | High: 1 nA / Low: 500 nA |
| 10 mA | High: 10 nA / Low: 5 µA |
| 100 mA | High: 100 nA / Low: 50 µA |
| DC Current Accuracy, 90 DAY: Tcal ±5°C, after one hour warm-up | |
| 100 mA High-Res | 0.0202% + 3.3 µA |
| 10 mA High-Res | 0.0074% + 220 nA |
| 1 mA High-Res | 0.0052% + 20 nA |
| 0.1 mA High-Res | 0.0052% + 3.3 nA |
| 100 mA Low-Res | 0.32% + 400 µA |
| 10 mA Low-Res | 0.30% + 52 µA |
| 1 mA Low-Res | 0.25% + 3.7 µA |
| 0.1 mA Low-Res | 0.25% + 0.38 µA |
| AC Volts Output Characteristics (sine, square, ramp, arbitrary) | |
| Frequency range (sine, arbitrary, square at 50% duty cycle) | 0 to 1 MHz |
| Frequency range (ramp) | 0 to 100 kHz |
| Frequency range (square w/duty cycle not equal to 50%) | 0 to 100 kHz |
| Amplitude and/or offset resolution | |
| .15625 V (Peak-Peak) | 50 Ω: 79 µV / 0 Ω: — |
| .3125 V | 50 Ω: 157 µV / 0 Ω: 157 µV |
| .625 V | 50 Ω: 313 µV / 0 Ω: 313 µV |
| 1.25 V | 50 Ω: 625 µV / 0 Ω: 625 µV |
| 2.5 V | 50 Ω: 1250 µV / 0 Ω: 1250 µV |
| 5 V | 50 Ω: 2.5 mV / 0 Ω: 2.5 mV |
| 10 V | 50 Ω: 5.0 mV / 0 Ω: 5.0 mV |
| 20 V | 50 Ω: — / 0 Ω: 10.0 mV |
| Amplitude range | 10% to 100% of range |
| AC Amplitude Accuracy (sine, ramp, arbitrary) | |
| 24 Hour, Tcal ±1°C | 0.16% of output + .25% of range |
| 90 Day, Tcal ±5°C | 0.29% of output + .36% of range |
| AC Amplitude Accuracy with Option 002 | Ninety-day accuracy is ±(0.32% of output + 3.6% of range) for 10-volt range (10x amplifier; 100 volts output) |
| Sinewave characteristics (50 Ω Mode) | |
| <3 kHz | Harmonic/Spurious (amp1 ≥50%): <-62 dB; THD (amp1 ≥50% of range): <-56 dB; Flatness ref 1 kHz: .07 dB |
| to 10 kHz | <-62 dB; <-50 dB; .07 dB |
| to 30 kHz | <-52 dB; <-48 dB; .07 dB |
| to 100 kHz | <-46 dB; <-46 dB; .20 dB |
| to 300 kHz | <-40 dB; —; .60 dB |
| to 1 MHz | <-37 dB; —; 2.00 dB |
| *Additional fixed spurious response > 4 MHz: 500 µVrms | |
| Squarewave characteristics (50 Ω Mode) | |
| Rise time | < 250 ns, 10% to 90% |
| Settling time | < 1 µs to 1% of amplitude |
| Overshoot | < 5% of peak-to-peak amplitude |
| Duty cycle range | 5% to 95%, 0 to 100 kHz; 50% above 100 kHz |
| Duty cycle accuracy | ±(0.8% of period + 120 ns) |
| Frequency resolution | 0.001 Hz |
| Frequency accuracy | ±50 ppm, 18 to 28°C |
| Frequency temperature coefficient | ±1 ppm/°C |
| Phase offset range | -360 to +360° |
| Phase offset resolution | <0.001° |
| Ramp linearity to 1 kHz (50 Ω Mode) | 0.3% of peak-to-peak value measured @ 50% duty cycle from 10% to 90% point |
| Ramp duty cycle range | 5% to 95% with < 0.1% resolution |
| Arbitrary waveform sample rate | ~4.3 MHz, run through 1.25 MHz 5-pole low-pass filter |
| Arbitrary waveform array depth | 2048 bytes |
| Nonvolatile setup storage | Up to 14 setups |
| Interface | HP-IB |
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
HP
Condition
Used
Manufacturer
Agilent
Frequency
1 MHz
1
Second Channel Output
30+ Years in Business
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