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Octal, 12-/16-Bit, I
2
C, dense
DACs
with 5 ppm/°C On-Chip Reference
Data Sheet
AD5629R/AD5669R
Rev. E Document Feedback
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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Technical Support www.analog.com
FEATURES
Low power octal DACs
AD5629R: 12 bits
AD5669R: 16 bits
2.6 mm × 2.6 mm 16-ball WLCSP
4 mm × 4 mm 16-lead LFCSP and 16-lead TSSOP
On-chip 1.25 V/2.5 V, 5 ppm/°C reference
Power down to 400 nA at 5 V, 200 nA at 3 V
2.7 V to 5.5 V power supply
Guaranteed monotonic by design
Power-on reset to zero scale or midscale
3 power-down functions
Hardware
EE
AA and AA
CLR
EE
AA functions
LDAC
I
2
C-compatible serial interface supports standard (100 kHz)
and fast (400 kHz) modes
8BAPPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
9BFUNCTIONAL BLOCK DIAGRAM
V
DD
1.25V/2.5V REF
V
REFIN
/V
REFOUT
LDAC
LDAC
CLR GND
INPUT
REGISTER
DAC
REGISTER
STRING
DAC A
V
OUT
A
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC B
V
OUT
B
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC C
V
OUT
C
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC D
V
OUT
D
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC E
V
OUT
E
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC F
V
OUT
F
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC G
V
OUT
G
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC H
V
OUT
H
BUFFER
POWER-ON RESET POWER-DOWN LOGIC
INTERFACE LOGIC
SCL
SDA
A0
AD5629R/AD5669R
08819-001
Figure 1.
10BGENERAL DESCRIPTION
The AD5629R/AD5669R devices are low power, octal, 12-/16-
bit, buffered voltage-output DACs. All devices are guaranteed
monotonic by design.
The AD5629R/AD5669R have an on-chip reference with an
internal gain of 2. The AD5629R-1/AD5669R-1 have a 1.25 V,
5 ppm/°C reference, giving a full-scale output range of 2.5 V.
The AD5629R-2/AD5629R-3 and the AD5669R-2/AD5669R-3
have a 2.5 V 5 ppm/°C reference, giving a full-scale output range
of 5 V depending on the option selected. Devices with 1.25 V
reference selected operate from a single 2.7 V to 5.5 V supply.
Devices with 2.5 V reference selected operate from 4.5 V to 5.5 V.
The on-chip reference is off at power-up, allowing the use of an
external reference. The internal reference is enabled via a
software write.
The parts incorporate a power-on reset circuit to ensure that
the DAC output powers up to 0 V (AD5629R-1/AD5629R-2,
AD5669R-1/AD5669R-2) or midscale (AD5629R-3/AD5669R-3)
and remains powered up at this level until a valid write takes place.
The part contains a power-down feature that reduces the current
consumption of the device to 400 nA at 5 V and provides software-
selectable output loads while in power-down mode for any or
all DAC channels.
11BPRODUCT HIGHLIGHTS
1. Octal, 12-/16-bit DACs.
2. On-chip 1.25 V/2.5 V, 5 ppm/°C reference.
3. Available in 16-lead LFCSP and TSSOP, and 16-ball
WLCSP.
4. Power-on reset to 0 V or midscale.
5. Power-down capability. When powered down, the DAC
typically consumes 200 nA at 3 V and 400 nA at 5 V.
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