DAC7643VFR datasheet(5/22 Pages) BURR-BROWN

No de pièce	DAC7643VFR

Description	16-Bit, Dual Voltage Output DIGITAL-TO-ANALOG CONVERTER

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Fabricant	BURR-BROWN [Burr-Brown (TI)]

Site Internet	http://www.burr-brown.com

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DAC7642, DAC7643

5

SBAS233

www.ti.com

20

R/W

Enabled by CS, Controls Data Read from and Write

to the Input Registers.

21

LOADDACS

DAC Output Registers Load Control. Rising edge

triggered. Transfers Data from the Input Registers to

the DAC Registers, Updating the DAC Output.

22

RST

Reset, Rising Edge Triggered. DAC7642 resets to

mid-scale, DAC7643 resets to zero. (Resets Both

Input Registers and DAC Registers)

23

DACSEL

Enabled by CS. Selects the individual DAC Input

Registers. (LOW Selects Register A, HIGH Selects

Register B)

24

VSS

Negative Power Supply

25

VOUTB

DAC B Voltage Output

26

VOUTB Sense

DAC B Output Amplifier Inverting Input. Used to

close the feedback loop at the load.

27

VREFH Sense

DAC A and B Reference High Sense Input

28

VREFH

DAC A and B Reference High Input

29

VOUTL

DAC A and B Reference Low Input

30

VREFL Sense

DAC A and B Reference Low Sense Input

31

VOUTA Sense

DAC A Output Amplifier Inverting Input. Used to

close the feedback loop at the load.

32

VOUTA

DAC A Output Voltage

Top View

LQFP

PIN CONFIGURATION

V

CC

GND

DB15

DB14

DB13

DB12

DB11

DB10

V

SS

DACSEL

RST

LOADDACS

R/W

CS

DB0

DB1

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

DAC7642

DAC7643

PIN DESCRIPTIONS

NAME

DESCRIPTION

1VCC

Positive Power Supply

2

GND

Ground

3

DB15

Data Bit 15, MSB

4

DB14

Data Bit 14

5

DB13

Data Bit 13

6

DB12

Data Bit 12

7

DB11

Data Bit 11

8

DB10

Data Bit 10

9

DB9

Data Bit 9

10

DB8

Data Bit 8

11

DB7

Data Bit 7

12

DB6

Data Bit 6

13

DB5

Data Bit 5

14

DB4

Data Bit 4

15

DB3

Data Bit 3

16

DB2

Data Bit 2

17

DB1

Data Bit 1

18

DB0

Data Bit 0, LSB

19

CS

Chip Select, Active LOW

NAME

DESCRIPTION

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Texas Instruments	DAC7643VFR	770Kb / 20P	[Old version datasheet] 16-Bit, Dual Voltage Output DIGITAL-TO-ANALOG CONVERTER
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