DAC8541

SLAS353 − DECEMBER 2001

4

www.ti.com

PBS PACKAGE

(TOP VIEW)

31 30 29 28 27

910

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

VOUT

VOUTSense

AGND

VREFL

VREFH

AVDD

DVDD

DGND

DB15

DB14

DB13

DB12

DB11

DB10

DB9

DB8

32

26

11 12 13 14 15 16

25

DAC8541

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

DB15−DB0

1−16

I/O

Data input/output, (pin 1-MSB: pin 16-LSB)

DGND

17

I

Digital ground

DVDD

18

I

Digital supply input, 1.8 V to 5.5 V

AVDD

19

I

Analog power supply input, 2.7 V to 5.5 V

VREFH

20

I

Positive reference voltage input (referenced to AGND)

VREFL

21

I

Negative reference voltage input (referenced to AGND), nominally VREFL = AGND

AGND

22

I

Analog ground

VOUTSense

23

I

Analog output sense. The feedback terminal of the output amplifier.

VOUT

24

O

Analog output voltage from DAC. The output amplifier has rail-to-rail operation.

PD0

25

I

Powerdown control bit 0

PD1

26

I

Powerdown control bit 1

BTC/USB

27

I

Data input format: binary twos complement or unipolar straight binary

RSTSEL

28

I

Reset VOUT on active RST to min-scale (RSTSEL = 0) or mid-scale (RSTSEL = 1)

RST

29

I

VOUT reset to min-scale or mid-scale, rising edge (Does not reset input register data.)

LDAC

30

I

Asynchronous load command, rising edge

R/W

31

I

Read/Write control input

CS

32

I

Chip select, active low