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AD5676RACPZ-REEL7 Scheda tecnica(PDF) 1 Page - Analog Devices

Il numero della parte AD5676RACPZ-REEL7
Spiegazioni elettronici  Octal, 12-/16-Bit nanoDAC with ppm/째C Reference, SPI Interface
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

AD5676RACPZ-REEL7 Scheda tecnica(HTML) 1 Page - Analog Devices

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Octal, 12-/16-Bit nanoDAC+ with
2 ppm/°C Reference, SPI Interface
Data Sheet
AD5672R/AD5676R
Rev. B
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
©2014–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
FEATURES
High performance
High relative accuracy (INL): ±3 LSB maximum at 16 bits
Total unadjusted error (TUE): ±0.14% of FSR maximum
Offset error: ±1.5 mV maximum
Gain error: ±0.06% of FSR maximum
Low drift 2.5 V reference: 2 ppm/°C typical
Wide operating ranges
−40°C to +125°C temperature range
2.7 V to 5.5 V power supply range
Easy implementation
User selectable gain of 1 or 2 (GAIN pin/gain bit)
1.8 V logic compatibility
50 MHz SPI with readback or daisy chain
Robust 2 kV HBM and 1.5 kV FICDM ESD rating
20-lead, RoHS-compliant TSSOP and LFCSP
APPLICATIONS
Optical transceivers
Base station power amplifiers
Process control (PLC input/output cards)
Industrial automation
Data acquisition systems
GENERAL DESCRIPTION
The AD5672R/AD5676R are low power, octal, 12-/16-bit buffered
voltage output digital-to-analog converters (DACs). They include
a 2.5 V, 2 ppm/°C internal reference (enabled by default) and a
gain select pin giving a full-scale output of 2.5 V (gain = 1) or
5 V (gain = 2). The devices operate from a single 2.7 V to 5.5 V
supply and are guaranteed monotonic by design. The AD5672R/
AD5676R are available in a 20-lead TSSOP and in a 20-lead LFCSP
and incorporate a power-on reset circuit and a RSTSEL pin that
ensures that the DAC outputs power up to zero scale or midscale
and remain there until a valid write. The AD5672R/AD5676R
contain a power-down mode, reducing the current consumption to
1 µA typical while in power-down mode.
Table 1. Octal nanoDAC+® Devices
Interface
Reference
16-Bit
12-Bit
SPI
Internal
AD5676R
AD5672R
External
AD5676
Not applicable
I2C
Internal
AD5675R
AD5671R
PRODUCT HIGHLIGHTS
1. High Relative Accuracy (INL).
AD5672R (12-bit): ±1 LSB maximum.
AD5676R (16-bit): ±3 LSB maximum.
2. Low Drift, 2.5 V On-Chip Reference.
FUNCTIONAL BLOCK DIAGRAM
INPUT
REGISTER
SDO
SDI
GND
VOUT7
LDAC
SYNC
SCLK
AD5672R/AD5676R
RESET
2.5V
REF
VOUT0
VOUT1
VOUT2
VOUT3
VOUT4
VOUT5
VOUT6
DAC
REGISTER
STRING
DAC 0
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC 1
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC 2
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC 3
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC 4
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC 5
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC 6
BUFFER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC 7
BUFFER
GAIN
POWER-DOWN
LOGIC
POWER-ON
RESET
VLOGIC
VDD
VREFOUT
RSTSEL
GAIN
×1/×2
Figure 1.


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