AD5625R Datasheet, PDF (2/32 Pages) Analog Devices – Quad, 12-/14-/16-Bit nanoDACs with 5ppm/°C On-chip Ref, I2C Interface

AD5625R/AD5645R/AD5665R, AD5625/AD5665
Preliminary Technical Data
TABLE OF CONTENTS
Features................................................................................... 1
Applications ...........................................................................1
General Description .............................................................1
Product Highlights................................................................1
Table1. Related Devices ........................................................2
TABLE OF CONTENTS ......................................................2
Specifications .........................................................................3
AC Characteristics ................................................................4
I²C Timing Specifications.....................................................5
Absolute Maximum Ratings ................................................7
Pin Configuration and Function Descriptions..................8
Typical Performance Characteristics ..................................9
Terminology ........................................................................... 17
Theory of Operation .............................................................19
D/A Section............................................................................19
Resistor String........................................................................19
Output Amplifier...................................................................19
Internal Reference .................................................................19
External Reference ................................................................19
Serial Interface .......................................................................19
Write Operation.....................................................................21
Read Operation......................................................................21
High Speed Mode ..................................................................22
Multiple Byte Write ...............................................................23
Broadcast Mode .....................................................................23
Input Shift Register................................................................23
Write Commands and LDAC...............................................24
LDAC Setup............................................................................24
LDAC Pin.................................................................................25
Power-Down Modes..............................................................25
Power-on Reset and Software Reset ....................................26
Internal Reference Setup.......................................................26
Clear Pin (CLR) .....................................................................26
Applications............................................................................27
Using A Reference as Power Supply ....................................27
Bipolar Operation..................................................................27
Power Supply Bypassing and Grounding ...........................27
Outline Dimensions ..............................................................28
Ordering Information ...........................................................29
REVISION HISTORY
4/06—Revision 0: Initial Version
Rev. PrA. | Page 2 of 32