HP / Agilent 3325B Synthesizer/Function Generator
The HP/Agilent 3325B is a synthesizer/function generator capable of producing a wide range of waveforms and frequencies. It offers precise control over signal parameters, making it suitable for various testing and measurement applications. This instrument is known for its stability and accuracy in generating signals.
- Model
- HP / Agilent 3325B
- Calibration
- Available on request
- Price
- $886
- Status
- In stock
- RFQ ref
- 3325B
This unit
The HP/Agilent 3325B is a dual-mode signal source combining synthesizer precision with function generator flexibility. It delivers microhertz-resolution frequency control from 1 µHz to 20.999 MHz (sine) and 10.999 MHz (square, triangle, ramp), making it ideal for precision testing, calibration, and automated measurement systems. The instrument generates seven waveform types with exceptional phase control (±719.9°, 0.1° resolution) and supports phase-continuous sweeps across 100 programmable segments. Harmonic distortion remains better than -65 dBc up to 50 kHz, with spurious levels reaching -70 dBc. Multi-unit phase-locking enables coherent multi-channel applications.
Technical Specifications Frequency & Resolution
Sine wave: 1 µHz to 20.999 MHz
Square, triangle, ramps: 1 µHz to 10.999 MHz
Sync output: DC to 60 MHz (TTL)
Frequency resolution: Microhertz (µHz)
Phase control: ±719.9° with 0.1° resolution Waveforms & Signal Quality
Sine, square, triangle, positive/negative ramps, arbitrary (ARB), DC offset
Harmonic distortion (sine): <-65 dBc (≤50 kHz); -60 dBc (200 kHz); -40 dBc (2 MHz); -30 dBc (15 MHz); -25 dBc (20 MHz)
Spurious levels: ≤-70 dBc
Square rise/fall time: ≤20 ns; overshoot <5%; settling <1 µs
Triangle linearity: 0.05% (≤10.999 kHz) Amplitude & Output
DC offset: ±5V (typical)
Amplitude accuracy: ±200 mV (typical)
Output impedance: <2 Ω (DC), <10 Ω (1 MHz)
Isolated floating outputs Modulation & Sweep
Internal modulation sources: sine, square, arbitrary waveforms
Sweep modes: LOG, LIN, discrete (100-segment capability)
Phase-continuous sweep supported
Key Features
Microhertz resolution across 20 MHz span
10 non-volatile memory locations for test setup storage
Programmable modulation with internal waveform sources
Exceptional phase continuity for multi-unit synchronization
Self-test capability (front panel or remote)
Typical Applications Precision frequency calibration, phase-coherent multi-channel testing, harmonic analysis, modulation characterization, automated test system integration, and communication system validation.
Compatibility & Integration HP-IB (IEEE-488) and RS-232 interfaces enable remote control and integration into automated test environments. Optional high-stability frequency reference (Option 001) provides ±5×10⁻⁷/week aging and ±1×10⁻⁷/month long-term stability.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 1 µHz to 20.999 MHz (sine) |
| 1 µHz to 10.999 MHz (square, ramp), triangle | Voltage / Current Range | ±5V DC offset (typical) |
HP / Agilent 3325B — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the HP / Agilent 3325B. Calibration covers output frequency accuracy, output amplitude accuracy at 50 ohm and Hi-Z load, DC offset accuracy, symmetry and duty cycle accuracy, and arbitrary waveform sample rate accuracy. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common HP / Agilent 3325B faults: BNC output connector wear, output amplifier failure from short-circuit drive, display and keypad membrane switch wear, DDS or DAC failure on 33250A. HP 33120A and Agilent 33220A most common fault is BNC output connector wear from repeated cable insertions. Output amplifier failure on the HP 33120A typically results from sustained short-circuit drive. Agilent 33250A DDS and high-speed DAC failures are rare but require component-level repair and post-repair amplitude verification across the full 80 MHz range.
HP / Agilent 3325B price
This HP / Agilent 3325B is listed at $885.58. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
HP / Agilent 3325B calibration cost
NIST-traceable calibration for the HP / Agilent 3325B is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers output frequency accuracy, output amplitude accuracy at 50 ohm and Hi-Z load, DC offset accuracy, symmetry and duty cycle accuracy, and arbitrary waveform sample rate accuracy. Turnaround is 1 to 3 business days after receipt. See full calibration details →
