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The Agilent U8903A is an audio analyzer that brings the full functions of analog-domain and digital-domain audio measurement into a single box. It combines the functionality of a distortion meter, SINAD meter, frequency counter, AC voltmeter, DC voltmeter and FFT analyzer together with a low-distortion audio source, letting an engineer perform quick and convenient cross-domain measurements on both analog and digital audio. With an optional two-in-one digital audio interface card providing AES3/SPDIF and Digital Serial Interface (DSI) formats, the instrument is built to measure and quantify both analog and digital audio performance.
The U8903A is intended for applications such as analog and digital IC component and module design, wireless audio and consumer audio, and the testing and validation of consumer electronics and digital-audio-related ICs. It also includes measurement features that simplify testing of transceivers used in devices such as car radios, telephones, mobile radios, broadcast radios, FM tuners and television, and its SINAD mode is commonly used to test FM receivers when checking receiver sensitivity or adjacent-channel selectivity. On the bench or in an automated test system, it characterizes signal-to-noise ratio, SINAD, IMD, DFD, THD+N ratio, THD+N level, crosstalk and more.
ValueTronics stocks and holds its own test-and-measurement 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 leave our facility factory-sealed exactly as received from the manufacturer.
Hewlett-Packard's test and measurement business was spun out as Agilent Technologies in 1999, the era from which this instrument's Agilent branding dates. Agilent's electronic measurement division was later established as Keysight Technologies in 2014.
Replaces: per the manufacturer, this model replaces 8903B.
| Specification | Value |
|---|---|
| Analog Generator — Sine, Dual Sine, Variable Phase | |
| Frequency range | 5 Hz to 80 kHz |
| Frequency accuracy | 5 ppm |
| Frequency resolution | 0.1 Hz |
| Output range (balanced) | 0 to 16 Vrms |
| Output range (unbalanced/common) | 0 to 8 Vrms |
| Amplitude accuracy | ±1% |
| Amplitude resolution | 1 ÎĽVrms (limited to five digits of resolution) |
| Flatness (5 Hz to 20 kHz) | ±0.01 dB |
| Flatness (5 Hz to 80 kHz) | ±0.1 dB |
| THD + N at 1 kHz, 1 Vrms (20 Hz to 20 kHz bandwidth) | ≤ -95 dB (at 23 °C ±5 °C); ≤ -92 dB (from 0 °C to 55 °C) |
| Dual sine ratio range | 0% to 100% |
| Phase | -180 ° to 179.99 ° |
| Sweep | Frequency, amplitude, phase |
| Analog Generator — Square | |
| Frequency range | 5 Hz to 30 kHz |
| Output range (balanced) | 0 to 45.2 Vpp |
| Output range (unbalanced/common) | 0 to 22.6 Vpp |
| Amplitude accuracy | ± 2% (for 1 kHz) |
| Rise time | < 2 ÎĽs |
| Analog Generator — SMPTE IMD (1:1/4:1/10:1) | |
| Low frequency (LF) tone | 40 Hz to 500 Hz |
| High frequency (HF) tone | 2 kHz to 60 kHz |
| Output range (balanced) | 0 to 16 Vrms |
| Output range (unbalanced/common) | 0 to 8 Vrms |
| Mixed ratio (LF:HF) | 10:1, 4:1, or 1:1 |
| Residual IMD (20 Hz to 20 kHz) | ≤ -92 dB |
| Sweep | Upper frequency, lower frequency, amplitude |
| Analog Generator — DFD (IEC 60118/IEC 60268) | |
| Difference frequency | 80 Hz to 2 kHz |
| Upper frequency | 3 kHz to 80 kHz |
| Center frequency | 3 kHz to 79 kHz |
| Output range (balanced) | 0 V to 16 Vrms |
| Output range (unbalanced/common) | 0 V to 8 Vrms |
| Inherent distortion (20 Hz to 20 kHz) | ≤ -101 dB |
| Sweep | Upper frequency, center frequency, amplitude |
| Analog Generator — Noise | |
| Type | Gaussian, rectangular |
| Output range (balanced) | 0 to 7.2 Vrms (Gaussian), 0 to 10 Vrms (Rectangular) |
| Output range (unbalanced/common) | 0 to 3.6 Vrms (Gaussian), 0 to 5 Vrms (Rectangular) |
| Analog Generator — Arbitrary | |
| Signal | Determined by the user selected file |
| Sample rate | 312.5 kHz |
| Length | 32 to 32768 points/channel |
| Maximum number of tones | (length/2) - 1 |
| Analog Generator — Multitone | |
| Signal | Determined by the user specified frequency, amplitude and phase data |
| Sample rate | 312.5 kHz |
| Length | 256 to 32768 points/channel |
| Maximum number of tones | 64 |
| Analog Generator — DC | |
| Output range (balanced) | -22.6 V to 22.6 V |
| Output range (unbalanced/common) | -11.3 V to 11.3 V |
| Amplitude accuracy | ±1.5% |
| Analog Generator — DC Offset | |
| Applicability | Applicable for all waveform types except variable phase, DC, and square |
| Output level range | -11.3 V to 11.3 V |
| Amplitude accuracy | ±1.5% (±250 mV to ±11.3 V); functional from 0 to ±250 mV (accuracy not warranted) |
| Analog Generator Output | |
| Connection type (balanced) | XLR |
| Connection type (unbalanced) | BNC |
| Connection type (common mode) | XLR |
| Impedance (balanced) | 100 Ω, 600 Ω |
| Impedance (unbalanced) | 50 Ω, 600 Ω |
| Output current limit (typical) | 50 mA |
| Maximum output power into 600 Ω (balanced) | 20 dBm |
| Maximum output power into 600 Ω (unbalanced) | 14 dBm |
| Crosstalk (20 Hz to 20 kHz) | ≤ -101 dB (at 23 °C ± 5 °C); ≤ -99 dB (from 0 °C to 55 °C) |
| Crosstalk (20 kHz to 80 kHz) | ≤ -85 dB |
| Generated waveforms | Sine, dual sine, variable phase, square, noise (Gaussian and rectangular), arbitrary, DC, multitone, SMPTE IMD (1:1, 4:1, and 10:1), DFD (IEC 60118/IEC 60268) |
| Analog Analyzer — Input | |
| Connection type (balanced) | XLR |
| Connection type (unbalanced) | BNC |
| Coupling | DC, AC |
| Measurement bandwidth (Low) | 30 kHz |
| Measurement bandwidth (High) | 100 kHz |
| Input ranges | 400 mV to 140 Vrms |
| Measurement range | < 1 ÎĽV to 140 Vrms |
| Maximum rated input | 200 Vp for altitude up to 3000 m |
| Impedance (balanced) | 200 kΩ |
| Impedance (unbalanced) | 100 kΩ |
| Flatness (20 Hz to 20 kHz) | ±0.01 dB (at 23 °C ±5 °C); ±0.012 dB (from 0 °C to 55 °C) |
| Flatness (20 kHz to 100 kHz) | ±0.1 dB (at 23 °C ±5 °C); ±0.15 dB (from 0 °C to 55 °C) |
| THD + N (at 1 kHz, 1 Vrms, 20 Hz to 20 kHz bandwidth) | ≤ -101 dB |
| CMRR (≤ 20 kHz, input range ≤ 6.4 V) | ≥ 70 dB |
| CMRR (≤ 20 kHz, input range > 6.4 V) | ≥ 40 dB |
| Crosstalk (20 Hz to 20 kHz) | ≤ -101 dB |
| Input protection | Overload protection for all ranges, onscreen warning message on the front panel |
| Analog Analyzer — THD + N and SINAD | |
| Fundamental frequency range | 10 Hz to 100 kHz |
| 3 dB measurement bandwidth | > 130 kHz |
| Detection | RMS |
| Display resolution | % up to 3 decimal places (dB up to 2 decimal places) |
| Analog Analyzer — SNR | |
| Fundamental frequency range | 10 Hz to 100 kHz |
| Display range | -999.999 dB to 0 dB |
| Accuracy (< 20 kHz) | ±0.5 dB |
| Accuracy (< 100 kHz) | ±0.7 dB |
| Input voltage range | < 1 ÎĽV to 140 Vrms |
| Residual distortion (at 1 kHz, 1 Vrms, 20 Hz to 20 kHz bandwidth) | ≤ -101 dB |
Important: Maximum rated input: 200 Vp for altitude up to 3000 m.
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
Agilent
Condition
Pre-Owned
Manufacturer
Agilent
Aud_ana_freq
DC and 10 Hz to 100 kHz
U8903A-101
Male BNC to male BNC cable , 1.2m , jade gray
U8903A-102
Male BNC to male RCA cable , 2m , black
U8903A-103
Male XLR to female XLR , 2m , black
U8903A-105
Cable , digital serial interface
U8903A-107
Cable , accessory- Male XLR-2 male BNC analyzer , 0.26m
U8903A-108
Cable , accessory- Female XLR-2 male BNC generator , 0.26m
U8903A-109
BNC accessory kit
U8903A-113
Audio analyzer 2 channel with 2 in 1 digital audio card , AES3-SPDIF and DSI
U8903A-114
Audio analyzer 2 channel with digital audio card , AES3-SPDIF
U8903A-115
Audio analyzer 2 channel with digital audio card , DSI
U8903A-200
Audio analyzer 2 channel
U8903A-908
Rackmount kit - 132.6H without handle
30+ Years in Business
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30+ Years in Business
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On-site Lab
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