PLACID PNP21 Preamplifier
The PLACID PNP21 1⁄2” Preamplifier is a robust preamplifier designed to be used for acoustic measurements with condenser microphones.
The self-noise is very low, it has a wide dynamic range and frequency response.
It can be supplied with either BNC or TNC connector depending on requirements.
Technology
Design
All PLACID ICCP microphone preamplifiers are designed for 1⁄4”, 1⁄2” and 1” condenser microphones. The preamplifiers are optimized to have a flat frequency response which will ensure high-quality acoustic measurements.
Self-noise
The electrical circuit has especially been designed to ensure a low self-noise level which typically be much lower than the self-noise of the microphone cartridge.
Impedance
The PLACID PNP21 input impedance is over 5 W , the output impedance is less than 110 W.
Daily usage
- General-purpose preamplifier
- High-frequency measurements
- High-pressure measurements
| DATASHEET PLACID PNP21 | ||
| Frequency Response (Ref. 250 Hz, 0.2 dB) | Hz | 5.0 to 100 kHz |
| Slew Rate | V/μs | 3.7 |
| Input Impedance | G Ω | > 5 |
| Output Impedance | Ω | < 110 |
| Max Output Voltage | Vrms | 8.0 |
| Noise (A-Weighted) | μV | < 2.0 |
| Noise (Linear 20 Hz – 20 kHz) | μV | < 6.0 |
| Gain | dB | – 0.27 |
| DC – offset, minimum | V | 15 |
| DC- offset, maximum | V | 24 |
| Power Requirement | mA | ICP 2 to 20 |
| Temperature operational range | Celcius | – 40 to 100 |
| Temperature storage range | Celcius | -40 to 100 |
| Humidity operational range noncondensing | % Rh | 0 to 98 |
| Output Connector Type | BNC | |
| Diameter | Inch | ½ |
| Weight | Gram | 25.5 |
| Length | mm | 84.5 |
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