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SR446 400 MHz Preamplifier
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The SR446 is a single-channel, 400 MHz bandwidth voltage preamplifier with 21 programmable gains from ×1 to ×100 (+0 dB to +40 dB with 2 dB steps). It also includes four programmable |
SR446 400 MHz Preamplifier
SR446 400 MHz Preamplifier
SR446 400 MHz Preamplifier
SR446
The SR446 is a single-channel, 400 MHz bandwidth voltage preamplifier with 21 programmable gains from ×1 to ×100 (+0 dB to +40 dB with 2 dB steps). It also includes four programmable
The front panel displays all the setup and the state of the instrument. Users can perform all the configurations from the front panel or remotely through the USB interface (in serial port emulation).
SR446 Specifications |
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General |
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| Input channels | 1 |
| Input configurations | 50 Ω, 500 Ω, AC or DC coupling, ground |
| Operating range | Max input: ±0.5 V Max output: ±0.65 V, or ±1.3 V differential |
| Output channels | 2 (+Out and -Out) |
| Output impedance | 50 Ω |
| Bandwidth | DC to 400 MHz (-3 dB) |
| Bandwidth limit | Full BW, 200 MHz, 100 MHz, 20 MHz |
| Rise/fall time | <1 ns |
| Voltage gain | 1 to 100 (0 dB to 40 dB with 2 dB steps) |
| Gain flatness | 0.3 dB (DC to 100 MHz) |
| Gain accuracy | ±0.5 dB (at 1 MHz) |
| Input noise | 3.3 nV/√Hz @1 MHz (at max gain) |
| Skew | 20 ns (typ.) between +Out and -Out |
| Propagation delay | 4.5 ns (typ.) |
| Overload recovery time | 12 ns (typ.) |
| Input clamp | ±1.5 V (typ.) |
| Output overload detect | ±0.7 V (typ.) into 50 Ω load |
| Computer interfaces | USB |
| Operating temperature | 0 °C to 40 °C, non-condensing |
| Dimensions | 8.3" × 1.5" × 8.0" (WHL) |
| Power | 5 W, 100 to 240 VAC, 50/60 Hz |
| Warranty | One year parts and labor on defects in materials and workmanship |
