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32-Channel, 14-Bit DAC with Full-Scale Output
Voltage Programmable from 50 V to 200 V
Data Sheet
AD5535B
Rev. A Document Feedback
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FEATURES
High integration
32-channel, 14-bit denseDAC® with integrated high
voltage output amplifier
Guaranteed monotonic
Housed in 15 mm × 15 mm CSP_BGA package
Full-scale output voltage programmable from 50 V to 200 V
via reference input
550 µA drive capability
Integrated silicon diode for temperature monitoring
DSP-/microcontroller-compatible serial interface
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
GENERAL DESCRIPTION
The AD5535B is a 32-channel, 14-bit denseDAC® 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 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.
Each amplifier can source 550 µA, which is ideal for the deflection
and control of optical MEMS mirrors.
The selected digital-to-analog converter (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 micro-
controller interface standards.
The device is operated with AV
CC
= 4.75 V to 5.25 V, DV
CC
=
2.7 V to 5.25 V, V
+
= 4.75 V to 5.25 V, and V
PP
of up to 225 V.
REF_IN is buffered internally on the AD5535B and should be
driven from a stable reference source.
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
RF
R1
RF
R1
RF
R1
RF
R1
INTERFACE
CONTROL
LOGIC
DAC
DAC
DAC
DAC
DV
CC
AV
CC
SYNC
D
IN
SCLK
DGND
AGND
DAC_GND
RESET
REF_IN
V
PP
PGND
V
+
14-BIT BUS
ANODE
CATHODE
V
OUT
0
V
OUT
1
V
OUT
30
V
OUT
31
AD5535B
10852-001
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