HP 35652B Input Module dc to 102.4 kHz

The HP 35652B is a single-channel analog input module for measurements from DC to 102.4 kHz. The input module converts the analog voltage or charge inputs to a normalized voltage output to be digitized by the analog to-digital converter. This analog-to-digital converter compensates for up to 25V dc offsets without using ac-coupling with its resulting loss of low frequency components. The HP 35652B contains an 8K word FIFO buffer memory allowing 4096 complex (8192 real) decimated sample points to be stored before being transferred to the HP-IB/Signal Processor module. The HP 35651B Integrated Electronics Piezo Electric (IEPE) mode provides 4 mA of constant current as the power supply for transducers.

[ Features ]

Three Input Modes: Voltage, Charge, and IEPE
Anti-alias protection on all spans
Auto-ranging
Digital zoom capability on all spans and all ranges
Input data may be transferred directly to optional HP 35659A
Internal/External Sample Clock

[ Specifications ]

Dynamic Range
0 to 50 kHz         80 dB

50 to 102.4 kHz     75 dB



Voltage Input
Accuracy (Calibrated)

1.26 mVpk to 3.16 mVpk     ą 0.25 dB

3.98 mVpk to 39.8 Vpk      ą 0.15 dB
    
Channel-to-Channel 
Amplitude Accuracy         ą 0.1 dB
    
Channel-to-Channel 
Phase Accuracy             ą 0.5 degrees
    
Full Scale Ranges          -58 dBVp to +32 dBVp 
                           in 2 dB steps

  

Input Impedance
1 Mohm ą 5% (input capacitance <150 pF)

  

Low Frequency Rolloff
3 dB ac rolloff <1.5 Hz

  

Transducer Power Supply Input
26V nominal (Open Circuit)



Charge Input
Accuracy (Calibrated)

-18 to -10 dBpCp            ą 0.35 dB

-8 to +72 dBpCp             ą 0.25 dB
    
Flatness

0 to 20 kHz on all Ranges   ą .10 dB

0 to 50 kHz on all Ranges   ą .15 dB

50 kHz to 
100 kHz on all Ranges       ą 0.8 dB

Full Scale Ranges           0.156 pCpk to 3981 pCpk, 
                            2 fB steps
 

 
Weight
2.0 Kg (4.4 lbs)