Stanford Research
Stanford Research SR554
Transformer Coupled PreAmplifier
4 nV/√Hz at 1 kHz Input Voltage Noise
100x (40 dB) Voltage Gain
DC to 100 MHz Bandwidth
100 MΩ in parallel with 25 pF Input Impedance
50 Ω Output Impedance

| Attribute | Value |
|---|---|
| Input Voltage Noise | 4 nV/√Hz at 1 kHz |
| Voltage Gain | 100x (40 dB) |
| Bandwidth | DC to 100 MHz |
| Input Impedance | 100 MΩ in parallel with 25 pF |
| Output Impedance | 50 Ω |
| Input Bias Current | 2 nA typical |
| Dynamic Reserve | Greater than 60 dB |
| Power Requirements | ±15 VDC at 120 mA (powered via BNC-connected power supply) |
| Operating Temperature Range | 0°C to 40°C |
| Connector Type | BNC input and output connectors |
| Model | SR554 |
|---|
The Stanford Research SR554 is a low-noise, transformer-coupled preAmplifier




