16-Channel DAC in 12 mm ⴛ 12 mm
14-Bit Resolution via Increment/Decrement Mode
Guaranteed Monotonic
Low Power, SPI
TM
, QSPI
TM
, MICROWIRETM, and DSP-
Compatible
3-Wire Serial Interface
Output Impedance 0.5 ⍀
Output Voltage Range
ⴞ2.5 V (AD5516-1)
ⴞ5 V (AD5516-2)
ⴞ10 V (AD5516-3)
Asynchronous Reset-Facility (via RESET Pin)
Asynchronous Power-Down Facility (via PD Pin)
Daisy-Chain Mode
Temperature Range: –40ⴗC to +85ⴗC
APPLICATIONS
Level Setting
Instrumentation
Automatic Test Equipment
Optical Networks
Industrial Control Systems
Data Acquisition
Low Cost I/O
LFBGA
FUNCTIONAL BLOCK DIAGRAM
with 14-Bit Increment Mode
AD5516
GENERAL DESCRIPTION
The AD5516 is a 16-channel, 12-bit voltage-output DAC. The
selected DAC register is written to via the 3-wire serial interface.
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 voltage 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 R
The device is operated with AV
5.25 V, V
= –4.75 V to –12 V, and V
SS
and requires a stable 3 V reference on REF_IN.
PRODUCT HIGHLIGHTS
1. Sixteen 12-bit DACs in one package, guaranteed monotonic
2. Available in a 74-lead LFBGA package with a body size of
12 mm ⴛ 12 mm
0 to RFB15 pins.
FB
= 5 V ± 5%, DVCC = 2.7 V to
CC
= +4.75 V to +12 V
DD
*
DV
AV
CC
CC
AD5516
RESET
BUSY
DACGND
AGND
DGND
DCEN
ANALOG
CALIBRATION
LOOP
MODE1
INTERFACE
CONTROL
LOGIC
SCLK DIND
12-BIT BUS
SYNC
OUT
MODE2
7-BIT BUS
*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, 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.
A Version: Industrial temperature range –40°C to +85°C; typical at +25°C.
3
Guaranteed by design and characterization; not production tested.
4
AD780 as reference for the AD5516.
5
Output range is restricted from V
6
Ensure that you do not exceed T
7
Outputs unloaded.
Specifications subject to change without notice.
7
7
7
+ 2 V to V
SS
. See Absolute Maximum Ratings section.
J (MAX)
– 2 V. Output span varies with reference voltage and is functional down to 2 V.
DD
2.7 V to 5.25 V; AGND = DGND = DACGND = 0 V; REF_IN = 3 V; All outputs unloaded.
A Version
2.875/3.125V min/max
10ppm/°C typof FSR
0.5Ω typ
5kΩ min
200pF
7mA typ
–85dB typVDD = +12 V ± 5%, VSS = –12 V ± 5%
120µV max
0.4V maxDVCC = 3 V ± 10%
2V minDVCC = 3 V ± 10%
+4.75/+15.75V min/max
–4.75/–15.75V min/max
4.75/5.25V min/max
2.7/5.25V min/max
5mA max3.5 mA typ. All Channels Full-Scale
5mA max3.5 mA typ. All Channels Full-Scale
17mA max13 mA typ
1.5mA max1 mA typ
2µA max200 nA typ
3µA max200 nA typ
2µA max200 nA typ
2µA max200 nA typ
105mW typVDD= +5 V, VSS= –5 V
2
UnitConditions/Comments
= 5 V ± 5%
CC
–2–
REV. 0
AD5516
(VDD = +4.75 V to +13.2 V, VSS = –4.75 V to –13.2 V; AVCC = 4.75 V to 5.25 V; DVCC = 2.7 V to 5.25 V; AGND = DGND
AC CHARACTERISTICS
Parameter
Output Voltage Settling Time (Mode 1)
Output Voltage Settling Time (Mode 2)
1, 2
= DACGND = 0 V; REF_IN = 3 V; All outputs unloaded. All specifications T
A Version
4
4
32s max100 pF, 5 kΩ Load Full-Scale Change
2.5s max100 pF, 5 kΩ Load, 1 Code Increment
3
UnitConditions/Comments
Slew Rate0.85V/s typ
Digital-to-Analog Glitch Impulse1nV-s typ1 LSB Change around Major Carry
Digital Crosstalk5nV-s typ
Analog Crosstalk AD5516-110nV-s typ
Digital Feedthrough1nV-s typ
Output Noise Spectral Density @ 1 kHz150nV/(Hz)
NOTES
1
See Terminology section.
2
Guaranteed by design and characterization; not production tested.
3
A version: Industrial temperature range –40°C to +85°C.
4
Timed from the end of a write sequence.
Specifications subject to change without notice.
1/2
typAD5516-1
(VDD = +4.75 V to +13.2 V, VSS = – 4.75 V to –13.2 V; AVCC = 4.75 V to 5.25 V; DVCC = 2.7 V to 5.25 V;
TIMING CHARACTERISTICS
Parameter
f
UPDATE1
f
UPDATE2
f
CLKIN
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
7MODE2
t
8MODE1
t
9MODE2
t
10
4
t
11
t
12
NOTES
1
See Timing Diagrams in Figures 1 and 2.
2
Guaranteed by design and characterization; not production tested.
3
All input signals are specified with tr = tf = 5 ns (10% to 90% of DVCC) and timed from a voltage level of (VIL + VIH)/2.
4
This is measured with the load circuit of Figure 3.
Specifications subject to change without notice.
1, 2, 3
Limit at T
(A Version)UnitConditions/Comments
32kHz maxDAC Update Rate (Mode 1)
750kHz maxDAC Update Rate (Mode 2)
20MHz maxSCLK Frequency
20ns minSCLK High Pulsewidth
20ns minSCLK Low Pulsewidth
15ns minSYNC Falling Edge to SCLK Falling Edge Setup Time
5ns minDIN Setup Time
5ns minDIN Hold Time
0ns minSCLK Falling Edge to SYNC Rising Edge
10ns minMinimum SYNC High Time (Standalone Mode)
400ns minMinimum SYNC High Time (Daisy-Chain Mode)
10ns minBUSY Rising Edge to SYNC Falling Edge
200ns min18th SCLK Falling Edge to SYNC Falling Edge (Standalone Mode)
10ns minSYNC Rising Edge to SCLK Rising Edge (Daisy-Chain Mode)
20ns maxSCLK Rising Edge to D
20ns minRESET Pulsewidth
MIN
, T
AGND = DGND = DACGND = 0 V. All specifications T
MAX
to T
MIN
MAX
Valid (Daisy-Chain Mode)
OUT
to T
MIN
unless otherwise noted.)
MAX
unless otherwise noted.)
–3–
AD5516
SERIAL INTERFACE TIMING DIAGRAMS
SCLK
SYNC
DIN
BUSY
RESET
SCLK
SYNC
D
121718
t
MODE1
8
t
t
7
3
t
4
BIT 17BIT 0
t
2
t
5
t
1
t
6
t
MODE2
LSBMSB
9
t
12
Figure 1. Serial Interface Timing Diagram
t
t
MODE2
7
IN
3
t
4
BIT 17BIT 0 BIT 17BIT 0
t
2
t
5
t
1
LSBMSB
t
10
t
6
D
OUT
BUSY
t
MODE1
8
INPUT WORD FOR DEVICE N
t
11
BIT 17BIT 0
UNDEFINEDINPUT WORD FOR DEVICE N
Figure 2. Daisy-Chaining Timing Diagram
200A
TO OUTPUT
PIN
C
L
50pF
200A
Figure 3. Load Circuit for D
I
OL
I
OH
Timing Specifications
OUT
INPUT WORD FOR DEVICE N+1
1.6V
–4–
REV. 0
AD5516
ABSOLUTE MAXIMUM RATINGS
(TA = 25°C unless otherwise noted.)
VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +17 V
to AGND . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –17 V
V
SS
AV
to AGND, DACGND . . . . . . . . . . . . . . –0.3 V to +7 V
CC
DV
to DGND . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
CC
Digital Inputs to DGND . . . . . . . . . . –0.3 V to DV
Digital Outputs to DGND . . . . . . . . . –0.3 V to DV
REF_IN to AGND, DACGND . . . . . –0.3 V to AV
0–15 to AGND . . . . . . . . . . . . V
V
OUT
AGND to DGND . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
R
0–15 to AGND . . . . . . . . . . . . V
FB
1, 2
CC
CC
– 0.3 V to V
SS
– 0.3 V to VDD+ 0.3 V
SS
CC
DD
+ 0.3 V
+ 0.3 V
+ 0.3 V
+ 0.3 V
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Time at Peak Temperature . . . . . . . . . . . . .10 sec to 40 sec
NOTES
1
Stresses above those listed under Absolute Maximum Ratings may cause permanent
damage to the device. This is a stress rating only; functional operation of the device
at these or any other conditions above those listed in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.
2
Transient currents of up to 100 mA will not cause SCR latch-up.
Operating Temperature Range, Industrial . . . . . –40°C to +85°C
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD5516 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
REV. 0
–5–
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