AD5532_15 Datasheet, PDF (1/20 Pages) Analog Devices – 32-Channel, 14-Bit Voltage-Output DAC

32-Channel, 14-Bit
Voltage-Output DAC
AD5532
FEATURES
High integration:
32-channel DAC in 12 mm × 12 mm CSPBGA
Adjustable voltage output range
Guaranteed monotonic
Readback capability
DSP/microcontroller compatible serial interface
Output impedance:
0.5 Ω (AD5532-1, AD5532-2)
500 Ω (AD5532-3)
1 kΩ (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
Automatic test equipment
Optical networks
Level setting
Instrumentation
Industrial control systems
Data acquisition
Low cost I/O
GENERAL DESCRIPTION
The AD5532¹ is a 32-channel, 14-bit voltage-output DAC with
an additional infinite sample-and-hold mode. The selected
DAC register is written to via the 3-wire serial interface; VOUT
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 VSS + 2 V to VDD – 2 V because of
the headroom of the output amplifier.
The device is operated with AVCC = 5 V ± 5%; DVCC = 2.7 V to
5.25 V; VSS = −4.75 V to −16.5 V; and VDD = 8 V to 16.5 V. The
AD5532 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. Available in a 74-lead CSPBGA package with a body size of
12 mm ×12 mm.
3. Droopless/infinite sample-and-hold mode.
DV_CC AV_CC REF_IN REF_OUT OFFS_IN
V_DD V_SS
AD5532
V_IN
TRACK/RESET
BUSY
DAC_GND
AGND
DGND
SER/PAR
ADC
DAC
MUX
DAC
DAC
INTERFACE
CONTROL
LOGIC
ADDRESS INPUT REGISTER
SCLK D_IN D_OUT
SYNC/CS A4–A0 CAL OFFSET_SEL
Figure 1. Functional Block Diagram
V_OUT0
V_OUT31
OFFS_OUT
WR
Rev. D
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.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone]
www.analog.com
Fax: [phone] © 2010 Analog Devices, Inc. All rights reserved.