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AD5669R даташит PDF электронных компонентов

AD5669R функция - (AD5629R / AD5669R) Octal / 12-/16-Bit / I2C / denseDACs - Analog Devices

Номер произв AD5669R
Описание (AD5629R / AD5669R) Octal / 12-/16-Bit / I2C / denseDACs
Производители Analog Devices 
логотип Analog Devices логотип 
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AD5669R Даташит, Описание, Даташиты
Data Sheet
Octal, 12-/16-Bit, I2C, denseDACs
with 5 ppm/°C On-Chip Reference
AD5629R/AD5669R
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 LDACE and CLRE functions
A A AA
I2C-compatible serial interface supports standard (100 kHz)
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
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.
SCL
SDA
A0
FUNCTIONAL BLOCK DIAGRAM
VDD
VREFIN/VREFOUT
AD5629R/AD5669R
LDAC
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
1.25V/2.5V REF
BUFFER
STRING
DAC A
BUFFER
STRING
DAC B
BUFFER
STRING
DAC C
BUFFER
STRING
DAC D
BUFFER
STRING
DAC E
BUFFER
STRING
DAC F
BUFFER
STRING
DAC G
BUFFER
STRING
DAC H
POWER-ON RESET
POWER-DOWN LOGIC
VOUTA
VOUTB
VOUTC
VOUTD
VOUTE
VOUTF
VOUTG
VOUTH
LDAC CLR
Figure 1.
GND
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.
Rev. B
Document Feedback
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2010–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
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