THS1040CPWR datasheet(9/32 Pages) TI

9 / 32 page

THS1040

SLAS290C − OCTOBER 2001 − REVISED OCTOBER 2004

www.ti.com

TYPICAL CHARACTERISTICS

Figure 5

−40

−45

−50

−55

−60

−65

−70

−75

−80

10 20

30 40

50 60 70 80 90 100 110 120

−0.5 dBFS

−6 dBFS

−20 dBFS

TOTAL HARMONIC DISTORTION

INPUT FREQUENCY

fi − Input Frequency − MHz

1-V FS Differential Input Range

See Note

Figure 6

10 2030 405060 70 80 90 100 110 120

TOTAL HARMONIC DISTORTION

INPUT FREQUENCY

fi − Input Frequency − MHz

2-V FS Differential Input Range

−0.5 dBFS

−6 dBFS

−20 dBFS

See Note

−40

−45

−50

−55

−60

−65

−70

−75

−85

−80

Figure 7

SIGNAL-TO-NOISE RATIO

INPUT FREQUENCY

fi − Input Frequency − MHz

Diff Input = 2 V

SE Input = 1 V

Diff Input = 1 V

SE Input = 2 V

1020 3040 506070 80 90 100 110 120

See Note

Figure 8

20 30 40

50 60 70 80

90 100 110 120

Diff Input = 2 V

Diff Input = 1 V

SE Input = 2 V

SPURIOUS FREE DYNAMIC RANGE

INPUT FREQUENCY

fi − Input Frequency − MHz

SE Input = 1 V

See Note

NOTE: AVDD = DVDD = 3 V, fS = 40 MSPS,

20-pF capacitors AIN+ to AGND and AIN− to AGND,

Input series resistor = 25

Ω,

2-V Input: Ext Ref, REFT = 2 V, REFB = 1 V, −0.5 dBFS

1-V Input: Ext Ref, REFT = 1.75 V, REFB = 1.25 V, −0.5 dBFS

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