HP 3245A Universal Source (Pre-Owned)Key Features At A Glance Precision DC outputs with 6.5 digits of resolution and 24-bit high-resolution mode Synthesized AC with 0.4% amplitude accuracy across sine, square, triangle, ramp, and arbitrary waveforms to 1 MHz Phase-continuous frequency changes with 0.001 Hz frequency resolution and 50 ppm frequency accuracy Floating outputs with selectable 0 ohm or 50 ohm output impedance Nonvolatile storage of up to 14 instrument setups Optional second-channel output for two independent or phase-related waveforms Optional 100-volt high-voltage amplifier (Option 002) extending output to ±100 V DC or 200 V peak-to-peak AC HP-IB interface with downloadable subroutines and BASIC-like programming constructs for system operation 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.Brand HeritageThe 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.Product Core & Specifications 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 (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)
