HP 8903B Audio Analyzer
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HP 8903E Distortion Analyzer
20 Hz to 100 kHz
Technical Specifications
The versatile choice
for audio analysis
All parameters describe performance in automatic operation or
properly set manual conditions. Specifications describe the
instrument’s warranted performance. Supplemental characteristics
(shown in italics) are intended to provide information useful in
applying the instrument by giving typical, but non-warranted,
performance parameters.
HP 8903B System Specifications
(HP 8903B only, source and analyzer combined)
Distortion
Residual Distortion and Noise (the higher of): 80 kHz
BW: −80 dB or 17 µV, 20 Hz to 20 kHz.
500 kHz BW: −70 dB or 50 µV, 20 Hz to 50 kHz.
−65 dB or 50 µV, 50 kHz to 100 kHz.
Supplemental Characteristics
Typical residual distortion and noise of the source and
analyzer combined (source voltage set to 1.5 V, 80 kHz
BW). Dashed line represents typical residual distortion
and noise for the analyzer only.
Related Literature:
Product Overview ..... 5968-1388E
Price List ................ 5968-1389EUS
Flatness
Supplemental Characteristics
Typical flatness of source and analyzer combined (source
voltage set to 1 V, 1 kHz reference).
Signal-to-Noise
Frequency Range: 50 Hz to 100 kHz
Display Range: 0 to 99.99 dB
Accuracy: ±1 dB
Input Voltage Range: 50 mV to 300 V
Residual Noise (the higher of):
80 kHz BW: −85 dB or 17 µV
500 kHz BW: −70 dB or 50 µV
Supplemental Characteristics
Time to Return First Measurement: <2.5 second
Measurement Rate: One reading per second
Resolution: Same as listed under SINAD, on page 2
HP 8903B Source Specifications
(HP 8903B only)
Time to Return First Measurement: 1.5 s
Measurement Rate: Two readings per second
Frequency
Range: 20 Hz to 100 kHz
Resolution: 0.3%
Accuracy: 0.3% of setting
Output Level
Range: 0.6 mV to 6 V open circuit
Resolution: 0.3% or better
Accuracy:
2% of setting 60 mV to 6 V, 20 Hz to 50 kHz.
3% of setting 6 mV to 6 V, 20 Hz to 100 kHz.
5% of setting 0.6 mV to 6 mV, 20 kHz to 100 kHz.
Flatness (1 kHz reference):
±0.7% (±0.06 dB), 20 Hz to 20 kHz.
±2.5% (±0.22 dB), 20 Hz to 100 kHz.
Distortion and Noise (the higher of):
80 kHz BW: −80 dB or 15 µV, 20 Hz to 20 kHz.
500 kHz BW: −70 dB or 38 µV, 20 Hz to 50 kHz.
−65 dB or 38 µV, 50 kHz to 100 kHz.
Impedance: 600 Ω ±1% or 50 Ω ±2% front panel or HP-IB
programmable (47 special function).
Supplemental Characteristics
Frequency Switching Speed: <3 ms (does not include
HP-IB programming time)
Output Level Switching Speed: 20 ms (does not include
HP-IB programming time)
Sweep Mode: Log sweep with up to 500 points per
decade or 255 points total between entered start and
stop frequencies.
SINAD
Fundamental Frequency Range: 20 Hz to 100 kHz
Display Range: 0 to 99.99 dB
Residual Distortion and Noise: Same as listed under
distortion
Accuracy:
±1 dB, 20 Hz to 20 kHz.
±2 dB, 20 kHz to 100 kHz.
Input Voltage Range: 50 mV to 300 V
Supplemental Characteristics
Detection: True-rms or rms-calibrated average
Resolution:
HP 8903B: 0.01 dB for SINAD ratios >25 dB. For
ratios <25 dB the display is rounded to the nearest
0.5 dB to reduce digit flickering of noisy signals
(full resolution is available via special function 16.1).
HP 8903E: Powers up with special function 16.1
active for 0.01 dB resolution at all SINAD ratios.
Analog Meter (HP 8903B only): Active in SINAD mode
only and for SINAD ratios up to 18 dB (24 dB using
special function 7.1).
1.0 dB typical accuracy.
Tuning:
HP 8903B: Notch filter is tuned to the internal audio
source frequency.
HP 8903E: Notch filter is tuned to the counted input
frequency.
Time to Return First Measurement: 1.5 s
Measurement Rate: Two readings per second
HP 8903B and HP 8903E
Analyzer Specifications
Distortion
Fundamental Frequency Range: 20 Hz to 100 kHz
Display Range: 0.001% to 100% (−99.99 to 0 dB)
Accuracy:
±1 dB, 20 Hz to 20 kHz.
±2 dB, 20 kHz to 100 kHz.
Input Voltage Range: 50 mV to 300 V
Residual Distortion and Noise (the higher of):
80 kHz BW: −80 dB or 15 µV, 20 Hz to 20 kHz.
500 kHz BW: −70 dB or 45 µV, 20 Hz to 50 kHz.
−65 dB or 45 µV, 50 kHz to 100 kHz.
Supplemental Characteristics
3 dB Measurement Bandwidth: 10 Hz to 500 kHz
Detection: True rms or rms-calibrated average
Displayed Resolution:
0.0001% (<0.1% distortion).
0.001% (0.1% to 3% distortion).
0.01% (3% to 30% distortion).
0.1% (>30% distortion).
AC Level
Full Range Display: 300.0 V, 30.00 V, 3.000 V, 0.3000 V,
30.00 mV, 3.000 mV, 0.3000 mV.
Overrange: 33%, except on 300 V range
Accuracy: (rms and average detection)
±2%, 50 mV to 300 V, 20 Hz to 20 kHz.
±3%, 0.3 mV to 50 mV, 20 Hz to 100 kHz.
±5%, 50 mV to 300 V, 20 kHz to 100 kHz.
Supplemental Characteristics
AC Converter: True-rms responding for signals with
crest factor up to 3, rms calibrated average detection,
or quasi-peak detection.
Time to Return First Measurement: <1.5 s
Measurement Rate: >2.5 readings per second
3 dB Measurement Bandwidth: >500 kHz
Quasi-Peak Detector Characteristic: Meets CCIR 468-4
Quasi-Peak Detector Accuracy: (20 Hz to 20 kHz) ±6%
typically
2
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