ADC3241 datasheet(21/82 Pages) TI1

21 / 82 page

Frequency (MHz)

100

150

200

250

300

350

400

D717

Dither_EN

Dither_DIS

Frequency (MHz)

100

150

200

250

300

350

400

104

D718

Dither_EN

Dither_DIS

Each Tone Amplitude (dBFS)

-35

-31

-27

-23

-19

-15

-11

-7

-115

-110

-105

-100

-95

-90

D715

Each Tone Amplitude (dBFS)

-35

-31

-27

-23

-19

-15

-11

-7

-110

-105

-100

-95

-90

-85

-80

D716

Frequency (MHz)

2.5

7.5

12.5

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

D713

Frequency (MHz)

2.5

7.5

12.5

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

D714

ADC3241, ADC3242, ADC3243, ADC3244

www.ti.com

SBAS671C – JULY 2014 – REVISED MARCH 2016

Product Folder Links: ADC3241 ADC3242 ADC3243 ADC3244

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Typical Characteristics: ADC3241 (continued)

Typical values are at TA = 25°C, ADC sampling rate = 25 MSPS, 50% clock duty cycle, AVDD = 1.8 V, DVDD = 1.8 V, –1-

dBFS differential input, 2-VPP full-scale, 32k-point FFT, chopper disabled, and SNR reported with a 1-MHz offset from dc

when chopper is disabled and from fS / 2 when chopper is enabled, unless otherwise noted.

fIN1 = 185 MHz, fIN2 = 190 MHz, IMD3 = 78 dBFS,

each tone at –7 dBFS

Figure 13. FFT for Two-Tone Input Signal

(–7 dBFS at 185 MHz and 190 MHz)

fIN1 = 185 MHz, fIN2 = 190 MHz, IMD3 = 89 dBFS,

each tone at –36 dBFS

Figure 14. FFT for Two-Tone Input Signal

(–36 dBFS at 185 MHz and 190 MHz)

Figure 15. Intermodulation Distortion vs Input Amplitude

(46 MHz and 50 MHz)

Figure 16. Intermodulation Distortion vs Input Amplitude

(185 MHz and 190 MHz)

Figure 17. Signal-to-Noise Ratio vs Input Frequency

Figure 18. Spurious-Free Dynamic Range vs

Input Frequency

ADC3241 Datenblatt(PDF) 21 Page - Texas Instruments

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