  Gotthard-II is a 1-D microstrip detector specifically developed for the
European X-ray Free-Electron Laser. It will not only be used in energy
dispersive experiments but also as a beam diagnostic tool with additional logic
to generate veto signals for the other 2-D detectors. Gotthard-II makes use of
a silicon microstrip sensor with a pitch of either 50 {\mu}m or 25 {\mu}m and
with 1280 or 2560 channels wire-bonded to adaptive gain switching readout
chips. Built-in analog-to-digital converters and digital memories will be
implemented in the readout chip for a continuous conversion and storage of
frames for all bunches in the bunch train. The performance of analogue
front-end prototypes of Gotthard has been investigated in this work. The
results in terms of noise, conversionngain, dynamic range, obtained by means of
infrared laser and X-rays, will be shown. In particular, the effects of the
strip-to-strip coupling are studied in detail and it is found that the
reduction of the coupling effects is one of the key factors for the development
of the analogue front-end of Gotthard-II.
