16-Channel, 12-Bit Voltage-Output DAC
with 14-Bit Increment Mode
a
AD5516*
GENERAL DESCRIPTION
FEATURES
The AD5516 is a 16-channel, 12-bit voltage-output DAC. The
selected DAC register is written to via the 3-wire serial interface.
High Integration:
16-Channel DAC in 12 mm ؋
12 mm LFBGA
14-Bit Resolution via Increment/Decrement Mode
Guaranteed Monotonic
DAC selection is accomplished via address bits A3–A0. 14-bit
resolution can be achieved by fine adjustment in Increment/
Decrement Mode (Mode 2). The serial interface operates at
clock rates up to 20 MHz and is compatible with standard SPI,
MICROWIRE, and DSP interface standards. The output volt-
age range is fixed at 2.5 V (AD5516-1), 5 V (AD5516-2),
and 10 V (AD5516-3). Access to the feedback resistor in each
channel is provided via RFB0 to RFB15 pins.
Low Power, SPITM, QSPITM
Compatible
3-Wire Serial Interface
Output Impedance 0.5 ⍀
Output Voltage Range
؎2.5 V (AD5516-1)
؎5 V (AD5516-2)
, , and DSP-
MICROWIRETM
The device is operated with AVCC = 5 V 5%, DVCC = 2.7 V to
5.25 V, VSS = –4.75 V to –12 V, and VDD = +4.75 V to +12 V
and requires a stable 3 V reference on REF_IN.
؎10 V (AD5516-3)
Asynchronous Reset-Facility (via RESET Pin)
Asynchronous Power-Down Facility (via PD Pin)
Daisy-Chain Mode
PRODUCT HIGHLIGHTS
1. Sixteen 12-bit DACs in one package, guaranteed monotonic
Temperature Range: –40؇C to +85؇C
APPLICATIONS
Level Setting
Instrumentation
2. Available in a 74-lead LFBGA package with a body size of
Automatic Test Equipment
Optical Networks
Industrial Control Systems
Data Acquisition
Low Cost I/O
FUNCTIONAL BLOCK DIAGRAM
DV
AV
CC
V
V
SS
REF_IN
CC
DD
V
BIAS
R
R
R
R
R
FB
FB
FB
FB
OFFS
R
0
FB
AD5516
V
0
OUT
DAC
DAC
DAC
DAC
R
RESET
BUSY
OFFS
R
1
FB
V
1
ANALOG
CALIBRATION
LOOP
OUT
R
OFFS
R
14
FB
DACGND
V
14
OUT
AGND
DGND
R
OFFS
MODE1
R
15
FB
V
15
OUT
INTERFACE
CONTROL
LOGIC
MODE2
7-BIT BUS
DCEN
POWER-DOWN
LOGIC
SCLK
D
D
PD
SYNC
OUT
IN
*Protected by U.S. Patent No. 5,969,657; other patents pending
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
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© Analog Devices, Inc., 2002