ClockFrequency,f

(MHz)

CLK

110

100

90

80

70

60

50

40

30

20

5

10

15

20

25

30

35

40

45

50

V

= 6dBFS,f

-

=10kHz

IN

IN

R

=267kW

BIAS

R

=210kW

BIAS

R

=140kW

BIAS

R

BIAS

=100kW

R

BIAS

=30kW

R

BIAS

=60kW

R

=37kW

BIAS

ClockFrequency,f

(MHz)

CLK

5

10

15

20

25

30

35

40

45

50

100

90

80

70

60

50

40

30

V

= 6dBFS,f

-

=10kHz

IN

IN

R

=210kW

BIAS

R

=267kW

BIAS

R

BIAS

=140kW

R

BIAS

=100kW

R

BIAS

=60kW

R

=37kW

BIAS

R

=30kW

BIAS

ClockFrequency,f

(MHz)

CLK

110

100

90

80

70

60

50

40

30

20

5

10

15

20

25

30

35

40

45

50

V

= 6dBFS,f

-

=10kHz

IN

IN

R

=267kW

BIAS

R

=210kW

BIAS

R

=140kW

BIAS

R

BIAS

=100kW

R

BIAS

=30kW

R

BIAS

=60kW

R

=37kW

BIAS

1000

100

10

1

0.1

-3

-2

-1

3

0

1

2

InputDCVoltage(V)

1540

1400

1300

1200

1100

1000

900

800

700

600

500

400

300

200

100

0

-4

-3

-2

-1

0

1

2

3

4

OutputCode(LSB)

V

=0

IN

120

100

80

60

40

20

0

-40

-15

10

35

60

85

Temperature(°C)

I

AVDD (

=low)

REFEN

I

AVDD (

=high)

REFEN

R

=37k ,f

W

BIAS

CLK =40MHz

I

+I

DVDD

IOVDD

ADS1602

www.ti.com

SBAS341E

– DECEMBER 2004 – REVISED OCTOBER 2011

TYPICAL CHARACTERISTICS (continued)

All specifications at TA = +25°C, AVDD = 5V, DVDD = IOVDD = 3V, fCLK = 40MHz, External VREF = +3V, VCM = +1.45V, and

RBIAS = 37kΩ, unless otherwise noted.

SNR vs CLOCK FREQUENCY

THD vs CLOCK FREQUENCY

Figure 27.

Figure 28.

SFDR vs CLOCK FREQUENCY

NOISE vs DC INPUT VOLTAGE

Figure 29.

Figure 30.

NOISE HISTOGRAM

POWER-SUPPLY CURRENT vs TEMPERATURE

Figure 31.

Figure 32.

Copyright

© 2004–2011, Texas Instruments Incorporated

13