with 5 ppm/°C On-Chip Reference

Data Sheet

AD5629R/AD5669R

Rev. F

Document Feedback

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother

rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

©2010–2018 Analog Devices, Inc. All rights reserved.

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 LDAC and CLR functions

and fast (400 kHz) modes

APPLICATIONS

Process control

Data acquisition systems

Portable battery-powered instruments

Digital gain and offset adjustment

Programmable voltage and current sources

FUNCTIONAL BLOCK DIAGRAM

1.25V/2.5V REF

LDAC

LDAC

CLR

GND

INPUT

REGISTER

DAC

REGISTER

STRING

DAC A

BUFFER

INPUT

REGISTER

DAC

REGISTER

STRING

DAC B

BUFFER

INPUT

REGISTER

DAC

REGISTER

STRING

DAC C

BUFFER

INPUT

REGISTER

DAC

REGISTER

STRING

DAC D

BUFFER

INPUT

REGISTER

DAC

REGISTER

STRING

DAC E

BUFFER

INPUT

REGISTER

DAC

REGISTER

STRING

DAC F

BUFFER

INPUT

REGISTER

DAC

REGISTER

STRING

DAC G

BUFFER

INPUT

REGISTER

DAC

REGISTER

STRING

DAC H

BUFFER

POWER-ON RESET

POWER-DOWN LOGIC

SCL

SDA

A0

AD5629R/AD5669R

Figure 1.

GENERAL 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.

PRODUCT 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.