REF5050 datasheet(11/43 Pages) TI1

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−135

−130

−125

−120

−115

−110

−105

−100

−95

−90

1.5

2.5

3.5

4.5

CLK (MHz)

Gain = 1/1

Gain = 1/2

Gain = 1/4

Gain = 1/8

Gain = 1/16

Gain = 1/32

Gain = 1/64

G000

100

105

110

115

120

125

130

135

1.5

2.5

3.5

4.5

Clock (MHz)

Gain = 1/1

Gain = 1/2

Gain = 1/4

Gain = 1/8

Gain = 1/16

Gain = 1/32

Gain = 1/64

G000

−135

−130

−125

−120

−115

−110

−105

−100

−95

−90

2.5

3.5

4.5

5.5

Reference Voltage (V)

Gain = 1/1

Gain = 1/2

Gain = 1/4

Gain = 1/8

Gain = 1/16

Gain = 1/32

Gain = 1/64

G000

100

105

110

115

120

125

130

135

2.5

3.5

4.5

5.5

Reference Voltage (V)

Gain = 1/1

Gain = 1/2

Gain = 1/4

Gain = 1/8

Gain = 1/16

Gain = 1/32

Gain = 1/64

G000

−130

−125

−120

−115

−110

−105

Total Harmonic Distortion (dB)

Gain = 1/1...1/8

Gain = 1/16

Gain = 1/32

Gain = 1/64

30 Units

G000

−55

−35

−15

105

125

Temperature (°C)

Gain = 1/1

Gain = 1/2

Gain = 1/4

Gain = 1/8

Gain = 1/16

Gain = 1/32

Gain = 1/64

DVDD

G000

DAC1282

www.ti.com

SBAS490

– DECEMBER 2011

TYPICAL CHARACTERISTICS (continued)

At TA = +25°C, AVDD = +2.5 V, AVSS = –2.5 V, DVDD = 3.3 V, fCLK = 4.096 MHz, and VREF = 5 V, unless otherwise noted.

THD vs MASTER CLOCK FREQUENCY

SNR vs MASTER CLOCK FREQUENCY

Figure 20.

Figure 21.

THD vs REFERENCE VOLTAGE

SNR vs REFERENCE VOLTAGE

Figure 22.

Figure 23.

THD HISTOGRAM

POWER-SUPPLY CURRENT vs TEMPERATURE

Figure 24.

Figure 25.

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