a
FEATURES
High Integration: 32-Channel DAC in 12 mm 12 mm
LFBGA
Adjustable Voltage Output Range
Guaranteed Monotonic
Read-Back 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 鈥?0 C to +85 C
APPLICATIONS
Automatic Test Equipment
Optical Networks
Level Setting
Instrumentation
Industrial Control Systems
Data Acquisition
Low Cost I/O
32-Channel, 14-Bit
Voltage-Output DAC
AD5532
*
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鈥揂4. 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
鈥?2 V because
of the headroom of the output amplifier.
The device is operated with AV
CC
= 5 V
鹵
5%, DV
CC
= 2.7 V
to 5.25 V, V
SS
= 鈥?.75 V to 鈥?6.5 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
脳
12 mm.
3. Droopless/Infinite Sample-and-Hold Mode.
FUNCTIONAL BLOCK DIAGRAM
DV
CC
AV
CC
REF IN
REF OUT
OFFS IN
V
DD
V
SS
AD5532
V
OUT
0
V
IN
TRACK
/
RESET
BUSY
DAC GND
AGND
DGND
MUX
MODE
ADC
14-BIT BUS
DAC
V
OUT
31
DAC
OFFS OUT
DAC
SER /
PAR
INTERFACE
CONTROL
LOGIC
ADDRESS INPUT REGISTER
WR
SCLK D
IN
D
OUT
SYNC
/
CS
A4 鈥揂0
CAL
OFFSET SEL
*Protected
by U.S. Patent No. 5,969,657; other patents pending.
REV. B
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
漏 Analog Devices, Inc., 2002