Quad, 12-/14-/16-Bit nanoDACs with
5 ppm/°C On-Chip Reference, I2C Interface
Data Sheet
AD5625R/AD5645R/AD5665R, AD5625/AD5665
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
V
V
/V
DD
GND
REFIN REFOUT
Low power, smallest pin-compatible, quad nanoDACs
AD5625R/AD5645R/AD5665R
AD5625R/AD5645R/AD5665R
1.25V/2.5V REF
12-/14-/16-bit nanoDACs
BUFFER
BUFFER
BUFFER
BUFFER
On-chip, 2.5 V, 5 ppm/°C reference in TSSOP
On-chip, 2.5 V, 10 ppm/°C reference in LFCSP
On-chip, 1.25 V, 10 ppm/°C reference in LFCSP
AD5625/AD5665
12-/16-bit nanoDACs
External reference only
INPUT
DAC
STRING
DAC A
V
V
V
V
A
B
C
D
OUT
OUT
OUT
OUT
ADDR1
ADDR2
SCL
REGISTER
REGISTER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC B
INPUT
REGISTER
DAC
REGISTER
STRING
DAC C
3 mm × 3 mm, 10-lead LFCSP; 14-lead TSSOP; and 1.665 mm
× 2.245 mm, 12-ball WLCSP
SDA
INPUT
REGISTER
DAC
REGISTER
STRING
DAC D
2.7 V to 5.5 V power supply
POWER-ON RESET
POWER-DOWN LOGIC
Guaranteed monotonic by design
Power-on reset to zero scale/midscale
Per channel power-down
Hardware LDAC and CLR functions
I2C-compatible serial interface supports standard (100 kHz),
fast (400 kHz), and high speed (3.4 MHz) modes
LDAC CLR
POR
NOTES
1. THE FOLLOWING PINS ARE AVAILABLE ONLY ON 14-LEAD PACKAGE:
ADDR2, LDAC, CLR, POR.
Figure 1. AD5625R/AD5645R/AD5665R
V
V
REFIN
DD
GND
AD5625/AD5665
APPLICATIONS
BUFFER
BUFFER
BUFFER
BUFFER
Process control
Data acquisition systems
Portable battery-powered instruments
Digital gain and offset adjustment
Programmable voltage and current sources
Programmable attenuators
INPUT
DAC
STRING
DAC A
V
V
V
V
A
B
C
D
OUT
OUT
OUT
OUT
ADDR1
ADDR2
SCL
REGISTER
REGISTER
INPUT
REGISTER
DAC
REGISTER
STRING
DAC B
INPUT
REGISTER
DAC
REGISTER
STRING
DAC C
GENERAL DESCRIPTION
SDA
The AD5625R/AD5645R/AD5665R and AD5625/AD5665
members of the nanoDAC® family are low power, quad, 12-/
14-/16-bit, buffered voltage-out DACs with/without an 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 I2C-compatible
serial interface.
INPUT
REGISTER
DAC
REGISTER
STRING
DAC D
POWER-ON RESET
POWER-DOWN LOGIC
LDAC CLR
POR
NOTES
1. THE FOLLOWING PINS ARE AVAILABLE ONLY ON 14-LEAD PACKAGE:
ADDR2, LDAC, CLR, POR.
Figure 2. AD5625/AD5665
The AD5625R/AD5645R/AD5665R have an on-chip reference. The
LFCSP versions of the AD56x5R have a 1.25 V or 2.5 V, 10 ppm/°C
reference, giving a full-scale output range of 2.5 V or 5 V; the
TSSOP versions of the AD56x5R have a 2.5 V, 5 ppm/°C refer-
ence, giving a full-scale output range of 5 V. The WLCSP package
has a 1.25 V reference. 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 AD5625/AD5665 require an
external reference voltage to set the output range of the DAC.
The AD56x5R/AD56x5 use a 2-wire I2C-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.
Description
AD5025/AD5045/AD5065
Dual 12-/14-/16-bit DACs
AD5624R/AD5644R/AD5664R,
AD5624/AD5664
Quad SPI 12-/14-/16-bit DACs,
with/without internal reference
Dual I2C 12-/14-/16-bit DACs,
with/without internal reference
AD5627R/AD5647R/AD5667R,
AD5627/AD5667
The part incorporates a power-on reset circuit that ensures that
the DAC output powers up to 0 V (POR = GND) or midscale
(POR = VDD) and remains there until a valid write occurs. The
on-chip precision output amplifier enables rail-to-rail output swing.
AD5666
Quad SPI 16-bit DAC with internal
reference
Rev. C
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.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Technical Support
©2007-2013 Analog Devices, Inc. All rights reserved.
www.analog.com
5秒后页面跳转
解析光耦仿真器：升级光耦合器技术的必要性
英伟达新一代Blackwell GPU过热问题致交付延迟
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
