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AD5623RBCPZ-3REEL7 Datasheet

  • AD5623RBCPZ-3REEL7

  • Dual 12-/14-/16-Bit nanoDAC with 5 ppm/C On-Chip Reference

  • 28頁

  • AD

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Dual 12-/14-/16-Bit
nanoDAC
廬
with
5 ppm/擄C On-Chip Reference
AD5623R/AD5643R/AD5663R
FEATURES
Low power, smallest pin-compatible, dual
nanoDAC
AD5663R: 16 bits
AD5643R: 14 bits
AD5623R: 12 bits
User-selectable external or internal reference
External reference default
On-chip 1.25 V/2.5 V, 5 ppm/擄C reference
10-lead MSOP and 3 mm 脳 3 mm LFCSP
2.7 V to 5.5 V power supply
Guaranteed monotonic by design
Power-on reset to zero scale
Per channel power-down
Serial interface up to 50 MHz
Hardware LDAC and CLR functions
FUNCTIONAL BLOCK DIAGRAM
V
DD
LDAC
INPUT
REGISTER
INTERFACE
LOGIC
INPUT
REGISTER
DAC
REGISTER
STRING
DAC B
BUFFER
V
OUT
B
DAC
REGISTER
STRING
DAC A
V
REFIN
/V
REFOUT
1.25V/2.5V
REFERENCE
BUFFER
V
OUT
A
SCLK
SYNC
DIN
AD5623R/AD5643R/AD5663R
POWER-ON
RESET
POWER-DOWN
LOGIC
05858-001
LDAC CLR
GND
Figure 1.
APPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
Table 1. Related Devices
Part No.
AD5663
Description
2.7 V to 5.5 V, dual 16-bit
nanoDAC,
with external
reference
GENERAL DESCRIPTION
The AD5623R/AD5643R/AD5663R, members of the
nanoDAC
family, are low power, dual 12-, 14-, and 16-bit buffered voltage-
out digital-to-analog converters (DAC) that operate from a single
2.7 V to 5.5 V supply and are guaranteed monotonic by design.
The AD5623R/AD5643R/AD5663R have an on-chip reference.
The AD5623R-3/AD5643R-3/AD5663R-3 have a 1.25 V, 5 ppm/擄C
reference, giving a full-scale output of 2.5 V; and the AD5623R-5/
AD5643R-5/AD5663R-5 have a 2.5 V, 5 ppm/擄C reference,
giving a full-scale output of 5 V. The on-chip reference is off at
power-up, allowing the use of an external reference; and all
devices can be operated from a single 2.7 V to 5.5 V supply.
The internal reference is turned on by writing to the DAC.
The parts incorporate a power-on reset circuit that ensures the
DAC output powers up to 0 V and remains there until a valid
write takes place. The part contains a power-down feature that
reduces the current consumption of the device to 480 nA at 5 V
and provides software-selectable output loads while in power-
down mode.
The low power consumption of this part in normal operation
makes it ideally suited to portable, battery-operated equipment.
The AD5623R/AD5643R/AD5663R use a versatile, 3-wire serial
interface that operates at clock rates up to 50 MHz, and they are
compatible with standard SPI廬, QSPI鈩? MICROWIRE鈩? and
DSP interface standards. The on-chip precision output amplifier
enables rail-to-rail output swing to be achieved.
PRODUCT HIGHLIGHTS
1. Dual 12-, 14-, and 16-bit DAC.
2. On-chip 1.25 V/2.5 V, 5 ppm/擄C reference.
3. Available in 10-lead MSOP and 10-lead, 3 mm 脳
3 mm LFCSP.
4. Low power; typically consumes 0.6 mW at 3 V and
1.25 mW at 5 V.
5. 4.5 渭s maximum settling time for the AD5623R.
Rev. A
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.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
漏2006 Analog Devices, Inc. All rights reserved.

AD5623RBCPZ-3REEL7 產(chǎn)品屬性

  • Data Converter FundamentalsDAC Architectures

  • 1

  • 集成電路 (IC)

  • 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器

  • nanoDAC™

  • 3µs

  • 12

  • 串行

  • 2

  • 單電源

  • 5mW

  • -40°C ~ 105°C

  • 表面貼裝

  • 10-WFDFN 裸露焊盤，CSP

  • 10-LFCSP-WD（3x3）

  • Digi-Reel®

  • 2 電壓，單極；2 電壓，雙極

  • 287k

  • AD5623RBCPZ-3REEL7DKR

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