AD6653-125EBZ datasheet(6/80 Pages) AD

6 / 80 page

AD6653

Rev. 0 | Page 6 of 80

ADC AC SPECIFICATIONS

AVDD = 1.8 V, DVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference,

DCS enabled, NCO enabled, half-band filter enabled, FIR filter enabled, unless otherwise noted.

Table 2.

AD6653BCPZ-125

AD6653BCPZ-150

Parameter1

Temperature

Min

Typ

Max

Min

Typ

Max

Unit

SIGNAL-TO-NOISE-RATIO (SNR)

fIN = 2.4 MHz

25°C

71.0

70.9

fIN = 70 MHz

25°C

70.8

Full

69.8

69.4

fIN = 140 MHz

25°C

70.6

fIN = 220 MHz

25°C

70.2

70.0

WORST SECOND OR THIRD HARMONIC

fIN = 2.4 MHz

25°C

−85

−84

dBc

fIN = 70 MHz

25°C

−84

−83

dBc

Full

−74

−73

dBc

fIN = 140 MHz

25°C

−83

−82

dBc

fIN = 220 MHz

25°C

−81

−77

dBc

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fIN = 2.4 MHz

25°C

dBc

fIN = 70 MHz

25°C

dBc

Full

dBc

fIN = 140 MHz

25°C

dBc

fIN = 220 MHz

25°C

dBc

WORST OTHER HARMONIC OR SPUR2

fIN = 2.4 MHz

25°C

−92

−90

dBc

fIN = 70 MHz

25°C

−90

−87

dBc

Full

−82

−80

dBc

fIN = 140 MHz

25°C

−88

−83

dBc

fIN = 220 MHz

25°C

−84

−78

dBc

TWO-TONE SFDR

fIN = 29.12 MHz, 32.12 MHz (−7 dBFS)

25°C

dBc

fIN = 169.12 MHz, 172.12 MHz (−7 dBFS)

25°C

dBc

CROSSTALK3

Full

ANALOG INPUT BANDWIDTH

25°C

650

MHz

1 See Application Note AN-835, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions.

2 See the Applications Information section for more information about the worst other specifications for the AD6653.

3 Crosstalk is measured at 100 MHz with −1 dBFS on one channel and with no input on the alternate channel.

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