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TYPICAL CHARACTERISTICS

−1

−0.5

0

0.5

1

−0.5

−0.25

0

0.25

0.5

0

512

1024

1536

2048

2560

3072

3584

4096

Digital Input Code

Channel A

−1

−0.5

0

0.5

1

−0.5

−0.25

0

0.25

0.5

0

512

1024

1536

2048

2560

3072

3584

4096

Digital Input Code

Channel B

DAC7558

SLAS435A – MAY 2005 – REVISED DECEMBER 2005

PIN DESCRIPTION (continued)

Terminal Functions (continued)

25

VREF4

Positive reference voltage input for DAC G and DAC H

26

DCEN

Daisy-chain enable

27

PD

Power down

28

VDD

Analog voltage supply input

29

Analog ground

30

RSTSEL

Reset select. If this pin is low, input coding is binary; if high, then 2s compliment.

31

RST

Asynchronous reset. Active low. If RST pin is low, all DAC channels reset either to zero scale (RSTSEL = 0) or to

midscale (RSTSEL = 1).

32

VREF1

Positive reference voltage input for DAC A and DAC B

(1)

Thermal pad should be connected to AGND.

LINEARITY ERROR AND

LINEARITY ERROR AND

DIFFERENTIAL LINEARITY ERROR

DIFFERENTIAL LINEARITY ERROR

vs

vs

DIGITAL INPUT CODE

DIGITAL INPUT CODE

Figure 2.

Figure 3.

7