SA-200F3 SA-220F5 SA-230F5 SA-400F3 SA-420F5 SA-421F5 SA-430F5 超低噪声放大器
| SA系列是用于极微弱信号检测的前置放大器系列，该系列是以取得前置放大器至今从未有过的低噪声为目标而开发的。 根据频带、输入形式、输入阻抗不同，本系列分为7种型号的前置放大器可供选用。另外还备有专用的电源和用于驱动传感器的电源。 |
SA-200F3 超低噪声放大器 |
SA-220F5 超低噪声FET放大器 |
SA-230F5 超低噪声放大器 |
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SA-400F3 超低噪声差分放大器 |
SA-420F5 超低噪声差分FET放大器 |
SA-421F5 超低噪声差分FET放大器 |
SA-430F5 超低噪声差分放大器 |
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| SA-200F3 | SA-220F5 | SA-230F5 | |
| Frequency range(typ.) | DC to 800kHz | 300Hz to 100MHz | 400Hz to 140MHz |
| Input form | DC coupling, unblanced single-ended input | AC coupling, unbalanced single-ended input | AC coupling, unblanced single-ended input |
| Input impedance | 1k / 10k / 100kΩ ±5(DC) | - | 50Ω ±5%(100kHz) |
| CMRR | - | - | - |
| Input voltage noise density | 0.7nV/√Hz max. (1kHz) 0.5nV/√Hz typ. (1MHz) |
0.7nV/√Hz max. (100kHz) 0.5nV/√Hz typ. (10k to 1MHz) |
0.35nV/√Hz max. (100kHz) 0.25nV/√Hz typ. (10k to 1MHz) |
| Input noise current density | 2.2pA/√Hz typ.(10kHz) | 200fA/√Hz typ.(100kHz) | 5.0pA/√Hz typ.(100kHz) |
| Noise figure | - | - | 0.7dB max. 0.6dB typ. (10MHz) 1.0dB max. 0.8dB typ. (100MHz) |
| Max. output voltage | ±10V/1k (1kHz) | 2.0Vp-p/50ΩHz (1kHz to 20MHz) |
2.0Vp-p/50ΩHz (1kHz to 20MHz) |
| Output impedance | 50Ω ± 5% (DC) | 50Ω ± 5% (100kHz) | 50Ω ± 5% (100kHz) |
| Voltage gain | 40 ± 0.5dB / 1MΩ (1kHz) | 46 ± 0.5dB / 50Ω (1kHz) | 46 ± 0.5dB / 50Ω (1kHz) |
| Harmonics distortion | 0.009% typ(1kHz±10V) | - | - |
| Intercept point | - | - | 30dBm typ. (68MHz) |
| Power requirement* | ± 15V ±5% | ± 15V ±5% | + 15V ±5% |
| Dimension (mm) | 68×43×17.6 | 68×43×28 | 68×43×17.6 |
| Weight | Approx. 90g | Approx. 130g | Approx. 90g |
* Using SA-915 as a power supply |
| SA-400F3 | SA-420F5 | SA-421F5 | SA-430F5 | |
| Frequency range(typ.) | DC to 700kHz |
300Hz to 80MHz |
16Hz to 40MHz |
400Hz to 110MHz |
| Input form | DC coupling, balanced differential input | AC coupling, balanced differential input | AC coupling, balanced differential input | AC coupling, balanced differential input |
| Input impedance | 1k / 10k / 100kΩ ±5(DC) | 1MΩ ±5%(kHz) | 1MΩ ±5%(kHz) | 50Ω ±5%(100kHz) |
| CMRR | 110dB min. 120dB typ. (50Hz) | 55dB min. 1kHz to 10MHz | 46dB min. 1kHz to 10MHz | 80dB min. 90dB typ. (100kHz) |
| Input voltage noise density | 0.9nV/√Hz max. (1kHz) 0.75nV/√Hz typ.(1kHz) |
0.9nV/√Hz (100kHz) | 0.5nV/√Hz (100kHz) | 0.45nV/√Hz typ. (100kHz) 0.35nV/√Hz typ. (10k to 1MHz) |
| Input noise current density | 3.0pA/√Hz typ. (10kHz) | 100fA/√Hz (1kHz) | 100fA/√Hz (100Hz) | 7.0pA/√Hz typ. (100kHz) |
| Noise figure | - | - | - | 1.25dB max. 1.10dB typ.(10MHz) 1.75dB max. 1.40dB typ. (100MHz) |
| Max. output voltage | ±10V/1kΩ(1kHz) | 2Vp-p min./50Ω (1kHz to 20MHz) |
2Vp-p min./50Ω (1kHz to 20MHz) |
2Vp-p/50Ω (1kHz to 20MHz) |
| Output impedance | 50Ω ± 5% (DC) | 50Ω ± 5% (100kHz) |
50Ω ± 5% (100kHz) |
50Ω ± 5% (100kHz) |
| Voltage gain | 40 ± 0.5dB / 1MΩ (1kHz) | 46 ± 0.5dB / 50Ω (1kHz) | 46 ± 0.5dB / 50Ω (1kHz) | 46 ± 0.5dB / 50Ω (1kHz) |
| Harmonics distortion | 0.008% typ. (1kHz±10V) | - | - | - |
| Intercept point | - | - | - | 28dBm typ. (68MHz) |
| Power requirement* | ± 15V ±5% | ± 15V ±5% | ± 15V ±5% | ± 15V ±5% |
| Dimension (mm) | 68×67×28 | 68×43×28 | 68×43×28 | 68×43×28 |
| Weight | Approx. 180g | Approx. 100g | Approx. 100g | Approx. 130g |
* Using SA-915 as a power supply |