The LeCroy DA1855A Differential Amplifier is a standalone high-performance instrument with DC to 100 MHz bandwidth and an outstanding 100,000:1 Common Mode Rejection Ratio (CMRR). The LeCroy DA1855A is intended to act as a signal conditioning preamplifier for oscilloscopes and other instruments, providing differential measurement capability. The rise time for the LeCroy DA1855A is <3.5 ns (typical) and it operates from 90 to 250 VAC lines (without switching). The DA1855A allows circuit measurement of dynamic saturation in switch mode power converter-switching devices.
Features
- DC to 100 MHz bandwidth
- 100000 to 1 CMRR
- Gain 1 or 10 state-of-the-art overdrive recovery
- Very low noise
- Full control from oscilloscope through ProBus interface
- Industry-leading overdrive recovery
- Selectable BW limiting
- Two gain control modes when connected to a Teledyne LeCroy oscilloscope
- Built-in Precision Voltage Generator (PVG)
- Comparator and true differential offset modes
Specifications
| Risetime (typical) |
<3.5 ns |
| Intended output load |
50 W |
| Bandwidth |
>100 MHz |
| Gain |
1 or 10 |
| Gain accuracy |
±1% |
| Output impedance |
50 W |
| Input attenuation |
0.1 or 10 attenuator accuracy: ±0.05% |
| Maximum output |
Limited at ±0.50V into 50 W |
| Dynamic range |
±15.5 V (÷1) or ±155 V (÷10) |