- Measurements of very weak signals, e.g. very low temperatures
- Precision measurements with very high sensitivity
- Measurement of signals from devices with high internal impedance, such as piezoelectric sensors or capacitive sensors Temperature, deformation, pressure, force, acceleration, displacement...
The EPC1-D preamplifier is characterized primarily by its low noise level, high input
impedance and gain accuracy.
An original bias circuit allows to obtain a very low cut-off frequency while maintaining good
performance in noise level.
|Very low input noise: e.g. 2nV/√Hz at 1 Hz, 0.7 nV/√Hz at 10KHz||• High impedance direct coupling or AC voltage coupling • Gain up to 10000 • High bandwidth : Fc <0.05 Hz to 130 KHz • Excellent common mode rejection |Bandwidth
| 103 |
|Manual switching or TTL signal (2 lines) setting|
|Precision||± 0,45 % (low frequency from 1 to 10Hz)|
|Temperature coefficient|| ± 9,5 ppm/° max|Input
|Low cut-off frequency||< 0,05 Hz |
|High cut-off frequency – 6 dB||130/75/13 kHz depending on the 102 103 104 gain|Input impedance
|Type||Differential HI (High impedance) DC coupling or AC HPF (High-Pass filter) coupling |
|Note||in High Impedance mode, the inputs are floating, protected by low-leakage diodes ( < 1nA) assembled head to tail. Reference to ground should therefore be ensured. |
|HI coupling ||> 300 MΩ parallel to 100 pF. |
|AC coupling : HPF ||10 MΩ parallel to 100 pF. |
More technical features in the datasheet