• Full control from oscilloscope through ProBus interface Mode Rejection Ratio (CMRR) • Industry-leading overdrive • Two gain control modes when connected to a LeCroy • Built-in Precision Voltage differential offset modes The DAI 855A is a stand-alone, high-performance differential amplifier providing the fastest overdrive recovery of any commercially available product. This unique capability allows the amplifier to make measurements that would normally be limited by oscilloscope overdrive recovery. signal conditioning preamplifier for oscilloscopes, digitizers and spectrum analyzers, providing differential measurement capability to instru- ments having only a single-ended input. When used with a DA1855A, oscilloscopes can obtain Common Mode Rejection Ratio (CMRR) and overdrive recovery performance levels previously unobtainable. 10. A built-in input attenuator can signals by a factor of 10, providing mode dynamic range of ±15.5 V increase the maximum input signal and common mode ranges in proportion to their attenuation ratio but do not exceed their maximum input voltage rating. Effective gain attenuation, amplifier gain and attenuator settings, is automatically 3-pole bandwidth limit filters can be selected to reduce bandwidth to noise above the frequency of interest. oscilloscope is not overdriven by large inputs. This allows many oscilloscopes to directly measure the settling of precision, better than any other differential comparator. Precision Voltage Generator (PVG) that PVGs output can be selected as an input to the inverting (-) input of the

specifications and ordering information noitamrofni gniredro dna snoitacificeps amplifier for operation as a differential comparator or measurements that are much more accurate than the applied internally as a true differential offset voltage. oscilloscope is capable of by itself. The output of the PVG The PVG is also available for external use through a is available for external use via a rear panel connector. rear panel connector. True Differential Offset Mode The DA1855A operates from 90 to 250 VAC line without line switching. High-performance differential probes such as the DXC100 ÷10/÷100...