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

Voltage Programmable from 50 V to 200 V

Preliminary Technical Data

AD5535

Rev. PrE

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FEATURES

High integration: 32-channel, 14-bit DAC with integrated,

high voltage output amplifier

Guaranteed monotonic

Housed in 15 × 15 mm CSP-BGA package

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

via reference input

700 µA drive capability

Integrated silicon diode for temperature monitoring

DSP-/microcontroller-compatible serial interface

Channel update rate: 1.2 MHz

Asynchronous RESET facility

Temperature range: –10°C to +85°C

APPLICATIONS

Optical micro-electromechanical systems (MEMS)

Optical cross-point switches

Micropositioning applications using Piezo Flextures

Level setting in automotive test and measurement

GENERAL DESCRIPTION

The AD5535 is a 32-channel, 14-bit DAC with an on-chip high

voltage output amplifier. This device is targeted for optical

micro-electromechanical systems. The output voltage range is

programmable via the REFIN pin. Output range is 0 V to 50 V

with REFIN = 1 V and is 0 V to 200 V with REFIN = 4 V. Each

amplifier can source 700 µA, which is ideal for the deflection

and control of optical MEMS mirrors.

The selected DAC register is written to via the 3-wire interface.

The serial interface operates at clock rates of up to 30 MHz and

is compatible with DSP and microcontroller interface standards.

= 210 V. REF_IN is buffered internally on the AD5535 and

should be driven from a stable reference source.

FUNCTIONAL BLOCK DIAGRAM

RF

R1

RF

R1

RF

R1

RF

R1

INTERFACE

CONTROL

LOGIC

DAC

DAC

DAC

DAC

SYNC

SCLK

DGND

AGND

DAC_GND

RESET

REF_IN

PGND

14-BIT BUS

ANODE

CATHODE

AD5535

Figure 1.