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in-line charge converter, 4 mv/pc, -5% frequency 1 hz, 2-pin mil conn.

In-Line Charge Amplifier

Model 422E20

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  • CE
  • IP

In-line charge converter, 4 mV/pC, -5% frequency 1 Hz, 2-pin MIL conn.

  • Sensitivity: (±5%)4 mV/pC
  • Output Voltage: ±2.5 Vpk
  • Temperature Range: -65 to +250 °F (-54 to +121 °C)
  • Housing Material: Stainless Steel

Specification Notes

[1] Above stated frequency, the amplifier becomes slew rate limited.
[2] Not to be used with low values of source resistance such as charge mode sensors at elevated temperatures or contaminated sensor cables (preventing low frequency peaking and/or output bias problems).
[3] Tested using voltage source and input capacitor equal to the feedback capacitor, to simulate a charge output sensor.
[4] See PCB Declaration of Conformance PS024 for details. A low impendance connection from case to earth ground is required to maintain CE compliance.

English: SI:
Performance
Sensitivity (±5 %) (Charge Conversion) 4 mV/pC 4 mV/pC
Overrange ±3 V ±3 V
Low Frequency Response (-5 %) 1 Hz 1 Hz
High Frequency Response (2.2 mA) 50 kHz 50 kHz [1]
High Frequency Response (4 mA) 75 kHz 75 kHz [1]
High Frequency Response (20 mA) 100 kHz 100 kHz [1]
Non-Linearity ≤1.0 % FS ≤1.0 % FS
Environmental
Temperature Range (Operating) -65 to +250 °F -54 to +121 °C
Temperature Response (Sensitivity Deviation) <1 % <1 %
Maximum Shock 1000 g pk 9810 m/s² pk
Electrical
Excitation Voltage 18 to 28 VDC 18 to 28 VDC
Constant Current Excitation 2.2 to 20 mA 2.2 to 20 mA
Output Voltage (at specified measurement range) ±2.5 Vpk ±2.5 Vpk
Output Impedance <10 Ohm <10 Ohm
Output Bias Voltage 12.75 to 14.25 VDC 12.75 to 14.25 VDC
Output Polarity Inverted Inverted
Maximum Input Voltage 30 V 30 V
Broadband Electrical Noise (1 to 10000 Hz) 15 µV -96 dB [3]
Spectral Noise (1 Hz) 10 µV/√Hz -100 dB [3]
Spectral Noise (10 Hz) 0.8 µV/√Hz -122 dB [3]
Spectral Noise (100 Hz) 0.2 µV/√Hz -134 dB [3]
Spectral Noise (1 kHz) 0.07 µV/√Hz -143 dB [3]
Spectral Noise (10 kHz) 0.07 µV/√Hz -143 dB [3]
Discharge Time Constant ≥0.5 sec ≥0.5 sec
Resistance (Minimum required at input) 5000000 Ohm 5000000 Ohm [2]
Source Capacitance Loading 0.0005 %/pF 0.0005 %/pF
Physical
Housing Material Stainless Steel Stainless Steel
Sealing Welded Hermetic Welded Hermetic
Electrical Connector (Input) 2-Pin MIL-C-26482 2-Pin MIL-C-26482
Electrical Connector (Output) 2-Pin MIL-C-5015 2-Pin MIL-C-5015
Size - Diameter 0.62 in 16 mm
Size - Length 3.62 in 92.0 mm
Weight 2.46 oz 69.7 gm

* All specifications are at room temperature unless otherwise specified.

Optional Versions

(T) TEDS Capable of Digital Memory and Communication Compliant with IEEE P1451.4

English SI
Output Bias Voltage 13.35 to 14.85
Temperature Range -40 to +185 -40 to +85