Frequency (Hz)

0

200

400

600

800

1000

1200

1400

1600

1800

2000

100

1k

10k

100k

1M

Figure 8-5. Noise vs Frequency

Figure 8-6 shows the output of the circuit rising from –10 V to +10 V, with the DAC starting at code 0x0000 and

ending at code 0xFFFF. The measured slew rate is 2.5 V/µs. The REF5025 is used as a 2.5-V reference.

Time (µs)

-5

-3

-1

1

3

5

7

9

11

13

15

-12

-10

-8

-6

-4

-2

0

2

4

6

8

10

12

DAC SYNC

DAC OUT

BUFFER OUT

DAC at code 0x0000 rising to code 0xFFFF

Figure 8-6. Bipolar Output Rising Slew Rate

Figure 8-7 shows the output of the circuit falling from +10 V to –10 V, with the DAC starting at code 0xFFFF and

ending at code 0x0000. This measured slew rate is 2.5 V/µs. The REF5025 is used as a 2.5-V reference.

Time (µs)

-5

-3

-1

1

3

5

7

9

11

13

15

-12

-10

-8

-6

-4

-2

0

2

4

6

8

10

12

DAC SYNC

DAC OUT

BUFFER OUT

DAC at code 0xFFFF falling to code 0x0000

Figure 8-7. Bipolar Output Falling Slew Rate

DAC82002

SBASAK1A – AUGUST 2022 – REVISED DECEMBER 2022

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