RHRDAC1612 datasheet(2/47 Pages) STMICROELECTRONICS

2 / 47 page

Contents

RHRDAC1612

2/47

DocID029369 Rev 2

Contents

Functional description .................................................................... 6

Pin description ................................................................................ 7

Radiations ........................................................................................ 9

3.1

Total ionizing dose (TID) ................................................................... 9

3.2

Heavy ions ........................................................................................ 9

DAC operation ............................................................................... 11

4.1

SPI interface.................................................................................... 11

4.1.1

SPI frame format .............................................................................. 11

4.1.2

SPI write sequence........................................................................... 12

4.1.3

SPI read sequence ........................................................................... 12

4.2

DAC configuration registers ............................................................ 13

4.3

DAC register data update options ................................................... 15

4.4

DAC transfer function ...................................................................... 16

4.5

External Vref power-up sequence ................................................... 17

4.6

DAC operation flow charts .............................................................. 19

4.7

ARSTN and PDN digital pin functions ............................................. 21

4.8

Power-on-reset (POR) feature ........................................................ 21

4.9

Power supply sequencing ............................................................... 21

4.10

Setting the RHRDAC1612............................................................... 22

4.11

SYNC OUT pin................................................................................ 23

4.12

Output feedback pin ........................................................................ 23

4.13

Pull-up and pull-down on digital inputs............................................ 24

4.14

Anti-aliasing output filter design ...................................................... 24

4.15

Auto-calibration feature ................................................................... 25

4.16

VREFIN input .................................................................................. 27

4.17

VREFOUT output ............................................................................ 28

4.18

TESTA and TESTD pins ................................................................. 28

Absolute maximum ratings and operating conditions ............... 29

Electrical characteristics .............................................................. 31

Electrical characteristic curves .................................................... 38

Package information ..................................................................... 43

8.1

Ceramic Flat-24 package information ............................................. 44

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