DAC7678_10 datasheet(11/52 Pages) TI

Part #	DAC7678

Description	12-Bit, Octal-Channel, Ultra-Low Glitch, Voltage Output, Two-Wire Interface Digital-to-Analog Converter with 2.5V Internal Reference

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Manufacturer	TI [Texas Instruments]

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0

1

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7

8

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10

I

- mA

SINK

0.00

0.10

0.20

0.30

0.40

0.50

0.60

AV

= 5.5 V,

Internal Reference Enabled,

DAC Loaded with 000h

DD

Channel D

0

1

2

3

4

5

6

7

8

9

10

I

- mA

SOURCE

AV

= 5.5 V,

Internal Reference Enabled,

DAC Loaded with FFFh

DD

4.80

4.85

4.90

4.95

5.00

Channel D

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0

1

2

3

4

5

6

7

8

9

10

I

- mA

SINK

AV

= 5.5 V,

Internal Reference Enabled,

DAC Loaded with 000h

DD

Channel H

0

1

2

3

4

5

6

7

8

9

10

I

- mA

SOURCE

4.80

4.85

4.90

4.95

5.00

AV

= 5.5 V,

Internal Reference Enabled,

DAC Loaded with FFFh

DD

Channel H

1.10

1.20

1.30

1.40

1.50

1.60

1.70

0

512

1024

1536

2048

2560

3072

3584

4096

Digital Input Code

1.80

1.90

2.00

AV

= 5.5 V,

Internal Reference Enabled,

Code Loaded to all Eight DAC Channels

DD

2.10

2.20

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

0

512

1024

1536

2048

2560

3072

3584

4096

Digital Input Code

AV

= 5.5 V,

External Reference = 5 V,

Code Loaded to all Eight DAC Channels

DD

Internal Reference Disabled,

DAC7678

www.ti.com

SBAS493A – FEBRUARY 2010 – REVISED AUGUST 2010

TYPICAL CHARACTERISTICS: DAC at AVDD = 5.5 V (continued)

At TA = 25°C, external reference used, DAC output not loaded, and all DAC codes in straight binary data format, unless

otherwise noted

SOURCE CURRENT

SINK CURRENT

AT POSITIVE RAIL

AT NEGATIVE RAIL

Figure 26.

Figure 27.

SOURCE CURRENT

SINK CURRENT

AT POSITIVE RAIL

AT NEGATIVE RAIL

Figure 28.

Figure 29.

POWER SUPPLY CURRENT

vs DIGITAL INPUT CODE

Figure 30.

Figure 31.

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