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Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
AD5532
*
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
32-Channel, 14-Bit
Voltage-Output DAC
FUNCTIONAL BLOCK DIAGRAM
SYNC
/
CS
WR
CAL
A4–A0
SCLK
OFFSET SEL
AD5532
DV
CC
V
IN
D
IN
D
OUT
ADDRESS INPUT REGISTER
AV
CC
REF IN
REF OUT
OFFS IN
INTERFACE
CONTROL
LOGIC
OFFS OUT
V
OUT
31
V
OUT
0
TRACK
/
RESET
BUSY
DAC GND
AGND
DGND
SER/
PAR
V
DD
V
SS
DAC
DAC
ADC
MUX
DAC
M
1
GENERAL DESCRIPTION
The AD5532 is a 32-channel voltage-output 14-bit DAC with
an additional infinite sample-and-hold mode. The selected DAC
register is written to via the 3-wire serial interface and V
OUT
for this DAC is then updated to reflect the new contents of the
DAC register. DAC selection is accomplished via address bits
A0–A4. The output voltage range is determined by the offset
voltage at the OFFS_IN pin and the gain of the output amplifier.
It is restricted to a range from V
SS
+ 2 V to V
DD
– 2 V because
of the headroom of the output amplifier.
The device is operated with AV
CC
= 5 V
±
5%, DV
CC
= 2.7 V
to 5.25 V, V
SS
= –4.75 V to –16.5 V and V
DD
= 8 V to 16.5 V
and requires a stable +3 V reference on REF_IN as well as an
offset voltage on OFFS_IN.
PRODUCT HIGHLIGHTS
1. 32-channel, 14-bit DAC in one package, guaranteed
monotonic.
2. The AD5532 is available in a 74-lead LFBGA package with
a body size of 12 mm
×
12 mm.
3. Droopless/Infinite Sample-and-Hold Mode.
FEATURES
High Integration: 32-Channel DAC in 12 12 mm
2
LFBGA
Adjustable Voltage Output Range
Guaranteed Monotonic
Readback Capability
DSP-/Microcontroller-Compatible Serial Interface
Output Impedance
0.5
(AD5532-1, AD5532-2)
500
(AD5532-3)
1 k
(AD5532-5)
Output Voltage Span
10 V (AD5532-1, AD5532-3, AD5532-5)
20 V (AD5532-2)
Infinite Sample-and-Hold Capability to 0.018% Accuracy
Temperature Range –40 C to +85 C
APPLICATIONS
Level Setting
Instrumentation
Automatic Test Equipment
Industrial Control Systems
Data Acquisition
Low Cost I/O
*
Protected by U.S. Patent No. 5,969,657; other patents pending.
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