Data Sheet

AD45335

32-Channel, 14-Bit DAC with Full-Scale Output

Voltage Programmable from 50 V to 200 V

Rev. 0

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FEATURES

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High integration

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32-channel, 14-bit denseDAC® with integrated high voltage out-

put amplifier

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Guaranteed monotonic

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Housed in a 15 mm × 15 mm CSP_BGA package

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Full-scale output voltage programmable from 50 V to 200 V

through reference input

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150/40 µA source/sink drive capability

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Integrated silicon diode for temperature monitoring

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SPI

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1.2 MHz channel update rate

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Asynchronous RESET facility

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–10°C to +85°C temperature range

APPLICATIONS

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Optical microelectromechanical systems (MEMS)

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Optical crosspoint switches

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Micropositioning applications using piezoelectric actuators

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Level setting in automotive test and measurement

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 pro-

grammable 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.

FUNCTIONAL BLOCK DIAGRAM

Figure 1. Functional Block Diagram