GENERAL DESCRIPTION
The AD45335 is a 32-channel, 14-bit denseDAC® with an on-chip
high voltage output amplifier. The AD45335 is targeted for optical
micro-electromechanical systems. The output voltage range is programmable
through the REF_IN pin. The output range is 0 V to
50 V when REF_IN = 1 V, and 0 V to 200 V when REF_IN = 4 V.
REF_IN is buffered internally on the AD45335 and must be driven
from a stable reference source.
The selected digital-to-analog converter (DAC) register is written
to using the 3-wire interface. The serial peripheral interface (SPI)
operates at clock rates of up to 30 MHz.

FEATURES
► High integration
► 32-channel, 14-bit denseDAC® with integrated high voltage output
amplifier
► Guaranteed monotonic
► Housed in a 15 mm × 15 mm CSP_BGA package
► Full-scale output voltage programmable from 50 V to 200 V
through reference input
► 150/40 μA source/sink drive capability
► Integrated silicon diode for temperature monitoring
► SPI
► 1.2 MHz channel update rate
► Asynchronous RESET facility
► –10°C to +85°C temperature range

APPLICATIONS
► Optical microelectromechanical systems (MEMS)
► Optical crosspoint switches
► Micropositioning applications using piezoelectric actuators
► Level setting in automotive test and measurement