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AD5647RBRMZ-REEL7 Datasheet

  • AD5647RBRMZ-REEL7

  • Dual, 12-/14-/16-Bit nanoDACs with 5ppm/C On-Chip Ref, I2C I...

  • 30頁

  • AD

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Preliminary Technical Data
FEATURES
Dual, 12-/14-/16-Bit
nanoDACs
廬
with
5ppm/擄C On-Chip Ref, I
2
C Interface
AD5627R/AD5647R/AD5667R
AD5627/AD5667
V
DD
GND
V
REFIN
/V
REFOUT
1.25V/2.5V REF
Low power, smallest pin-compatible, dual
nanoDACs
AD5627R/AD5647R/AD5667R
12-/14-/16- bit
On-chip 1.25 V/2.5 V, 5 ppm/擄C reference
AD5625/AD5665
12-/16- bit
External reference only
3 mm x 3 mm LFCSP and 10-lead MSOP
2.7 V to 5.5 V power supply
Guaranteed monotonic by design
Power-on reset to zero scale
Per channel power-down
I
2
C-compatible serial interface supports standard (100 kHz),
fast (400 kHz), and high speed (3.4 MHz) modes
AD5627R/AD5647R/AD5667R
ADDR
INPUT
REGISTER
INTERFACE
LOGIC
INPUT
REGISTER
DAC
REGISTER
STRING
DAC A
BUFFER
V
OUTA
SCL
DAC
REGISTER
STRING
DAC B
BUFFER
V
OUTB
SDA
POWER-ON
RESET
LDAC
CLR
POWER-DOWN
LOGIC
V
DD
GND
V
REFIN
AD5627/AD5667
ADDR
INPUT
REGISTER
INTERFACE
LOGIC
INPUT
REGISTER
DAC
REGISTER
STRING
DAC A
BUFFER
V
OUTA
SCL
DAC
REGISTER
STRING
DAC B
BUFFER
V
OUTB
SDA
POWER-ON
RESET
POWER-DOWN
LOGIC
APPLICATIONS
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
LDAC
CLR
Figure 1. Functional Block Diagrams
GENERAL DESCRIPTION
The AD5627R/AD5647R/AD5667R, AD5627/AD5667,
members of the
nanoDAC
family, are low power, dual, 12-, 14-,
16-bit buffered voltage-out DACs with/without on-chip
reference. All devices operate from a single 2.7 V to 5.5 V
supply, are guaranteed monotonic by design and have an I
2
C-
compatible serial interface .
The AD5627R/AD5647R/AD5667R have an on-chip reference. The
AD56x7RBCPZ have a 1.25 V, 5 ppm/擄C reference, giving a full-scale
output range of 2.5 V; the AD56x7RBRUZ have a 2.5 V, 5 ppm/擄C
reference giving a full-scale output range of 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 AD5667
and AD5627 require an external reference voltage to set the
output range of the DAC
The part incorporates 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 per-channel power-down
feature that reduces the current consumption of the device to
Rev. PrA
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.
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 on-chip precision output
amplifier enables rail-to-rail output swing.
The AD5627R/AD5647R/AD5667R, AD5627/AD5667 use a 2-
wire I
2
C-compatible serial interface that operates in standard
(100 kHz), fast (400 kHz), and high speed (3.4 MHz) modes.
Table 1. Related Devices
Part No.
AD5663
AD5623R/AD5643R/AD5663R
Description
2.7 V to 5.5 V, Dual 16-bit DAC,
external reference, SPI interface
2.7 V to 5.5 V, Dual 12-, 14-, 16-
bit DACs, internal reference, SPI
interface
2.7 V to 5.5 V, quad 12-, 14- 16-
bit DACs, with/without internal
reference, I
2
C interface
AD5625R/AD5645R/AD5665R
AD5625/AD5665
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.

AD5647RBRMZ-REEL7 產品屬性

  • Data Converter FundamentalsDAC Architectures

  • 1,000

  • 集成電路 (IC)

  • 數據采集 - 數模轉換器

  • nanoDAC™

  • 3.5µs

  • 14

  • 串行

  • 2

  • 單電源

  • 5.75mW

  • -40°C ~ 105°C

  • 表面貼裝

  • 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）

  • 10-MSOP

  • 帶卷 (TR)

  • 2 電壓，單極；2 電壓，雙極

  • 285k

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