ADC3421 datasheet(35/80 Pages) TI2

35 / 80 page

Frequency (MHz)

100

150

200

250

300

350

400

D217

Dither_EN

Dither_DIS

Frequency (MHz)

100

150

200

250

300

350

400

100

D218

Dither_EN

Dither_DIS

Each Tone Amplitude (dBFS)

-35

-31

-27

-23

-19

-15

-11

-7

-110

-105

-100

-95

-90

-85

-80

D215

Each Tone Amplitude (dBFS)

-35

-31

-27

-23

-19

-15

-11

-7

-110

-105

-100

-95

-90

-85

-80

D216

Frequency (MHz)

12.5

37.5

62.5

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

D213

Frequency (MHz)

12.5

37.5

62.5

-120

-110

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

D214

ADC3421, ADC3422, ADC3423, ADC3424

www.ti.com

SBAS673A – JULY 2014 – REVISED OCTOBER 2015

Typical Characteristics: ADC3424 (continued)

Typical values are at TA = 25°C, ADC sampling rate = 125 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 = 86 dBFS,

fIN1 = 185 MHz, fIN2 = 190 MHz, IMD3 = 102 dBFS,

each tone at –7 dBFS

each tone at –36 dBFS

Figure 103. FFT for Two-Tone Input Signal

Figure 104. FFT for Two-Tone Input Signal

(–7 dBFS at 185 MHz and 190 MHz)

(–36 dBFS at 185 MHz and 190 MHz)

Figure 105. Intermodulation Distortion vs Input Amplitude

Figure 106. Intermodulation Distortion vs Input Amplitude

(46 MHz and 50 MHz)

(185 MHz and 190 MHz)

Figure 107. Signal-to-Noise Ratio vs Input Frequency

Figure 108. Spurious-Free Dynamic Range vs

Input Frequency

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Product Folder Links: ADC3421 ADC3422 ADC3423 ADC3424

ADC3421 Datasheet(PDF) 35 Page - Texas Instruments

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