4

®

DAC1221

TYPICAL PERFORMANCE CURVES

At TA = +25°C, AVDD = DVDD = +3.0V, fXIN = 2.5MHz, VREF = 1.25V, C1 = 2.2nF, C2 = 150pF and C3 = 6.8nF.

POWER SUPPLY REJECTION RATIO vs FREQUENCY

Frequency (Hz)

10

100

1000

10000

100000

70

60

50

40

30

20

10

0

FULL SCALE OUTPUT SWING

Time (ms)

01

2

3

4

3.0

2.5

2.0

1.5

1.0

0.5

0

Time (ms)

SETTLING TIME: 20mV to FS

02

4

6

8

10

300

0

–300

–600

–900

–1200

–1500

SETTLING TIME: FS to 20mV

Time (ms)

02

4

6

8

10

1500

1200

900

600

300

0

–300

OFFSET vs TEMPERATURE

Temperature (

°C)

–25

25

75

–50

0

50

100

4

2

0

–2

–4

–6

(can be corrected with calibration)

OUTPUT NOISE VOLTAGE vs FREQUENCY

Frequency (Hz)

10

100

1000

10000

10000

10000

1000

100

10

1