  NISP, a multifaceted near-infrared instrument for the upcoming 2.5m IR
telescope at MIRO Gurushikhar, Mount Abu, Rajasthan, India is being developed
at PRL, Ahmedabad. NISP will have wide (FOV = 10' x 10') field imaging,
moderate (R=3000) spectroscopy and imaging polarimetry operating modes. It is
designed based on 0.8 to 2.5 micron sensitive, 2048 X 2048 HgCdTe (MCT) array
detector from Teledyne. Optical, Mechanical and Electronics subsystems are
being designed and developed in-house at PRL. HAWAII-2RG (H2RG) detector will
be mounted along with controlling SIDECAR ASIC inside LN2 filled cryogenic
cooled Dewar. FPGA based controller for H2RG and ASIC will be mounted outside
the Dewar at room temperature. Smart stepper motors will facilitate motion of
filter wheels and optical components to realize different operating modes.
Detector and ASIC temperatures are servo controlled using Lakeshore's
Temperature Controller (TC) 336. Also, several cryogenic temperatures will be
monitored by TC for health checking of the instrument. Detector, Motion and
Temperature controllers onboard telescope will be interfaced to USB Hub and
fiber-optic trans-receiver. Remote Host computer interface to remote end
trans-receiver will be equipped with in-house developed GUI software to control
all functionalities of NISP. Design and development aspects of NISP Electronics
will be presented in this conference.

Instrumentation and Methods for Astrophysics